CITY OF OTTAWA

URBAN NATURAL AREAS

ENVIRONMENTAL EVALUATION STUDY

APPENDIX A – VASCULAR PLANTS OF THE CITY OF OTTAWA,

WITH THE IDENTIFICATION OF SIGNIFICANT SPECIES

A report prepared for the Environmental Management Division,

Planning & Growth Management Department, City of Ottawa

By Daniel F. Brunton

March 2005

TABLE OF CONTENTS

Acknowledgements............................................................................................................................ ii

1.0 INTRODUCTION................................................................................................................... 1

1.1 Status of native taxa......................................................................................................... 1

1.2 Non-native (introduced) taxa .......................................................................................... 3

1.3 New Data....................................................................................................................... 4

1.4 Annotated list.................................................................................................................. 5

2.0 LITERATURE AND DOCUMENT REFERENCES.............................................................. 87

ATTACHMENTS

ATTACHMENT 1 - INDEX to Vascular Plant Genera .................................................................. 91

ATTACHMENT 2: Excluded taxa................................................................................................. 106

ATTACHMENT 3: Alphabetical listing of Regionally Significant taxa.............................................. 110

ATTACHMENT 4: Regionally Significant taxa locations................................................................. 126

Acknowledgments

Unpublished specimen data from a number of field botanists, most particularly Paul M. Catling, William J. Crins William Draper, Albert Dugal, the late Clarence Frankton, Catherine J. Keddy, Michael J. Oldham, Joyce M. Reddoch and David J. White, were incorporated into this list over a period of several years. Application of these unpublished data have supplemented in-house knowledge of the vascular plants of Ottawa gained both from extensive field experience and from off-site floristic research. The contributions from other field botanists have significantly enhanced the usefulness of the final list.

Many additional records were gleaned from examination of the herbarium specimens, as noted in the Introduction (above). Those preserved at Agriculture Canada (DAO) and the Canadian Museum of Nature (CAN) constitute particularly large and important information sources. Collection managers Gizèle Mitrow and Michael Shchepanek (respectively), greatly facilitated these herbarium investigations.

A number of taxonomic specialists were consulted for identifications and/ or nomenclatural insight for some of the plant groups addressed. These include Donald M. Britton, University of Guelph (pteridophytes), George W. Argus, Canadian Museum of Nature (Salicaceae), William J. Crins, Ontario Ministry of Natural Resources (Cyperaceae; Juncaceae; Poaceae), Stephen Darbyshire, Agriculture Canada (Poaceae), Paul M. Catling, Agriculture Canada (Cyperaceae, Orchidacae, Juncaceae), John Semple, University of Waterloo (Asteraceae), Gerald Mulligan, Agriculture Canada (Brassicaceae), Erich Haber, Canadian Museum of Nature (Pyrolaceae), James Phipps, University of Waterloo (Rosaceae) and Tony Reznicek, University of Michigan (Cyperaceae).

The annotated list was enhanced significantly by the reviews of botanists Michael Oldham, David White, Paul Catling and Albert Dugal. These gentlemen provided numerous valuable comments, corrections, additions and observations. Any errors or emissions which may have escaped their sharp eyes, however, remain the author’s responsibility.

This document also benefited from the efforts of Bernie Muncaster, Muncaster Environmental, in the development of the generic index, and through the work of Susan Murphy, City of Ottawa, in final production.

1.0 INTRODUCTION

Accurate identification of the diversity and abundance of species occurring in a particular site provides a valuable indication of the ecological significance of that area’s natural habitats. It also provides important information on possible mitigation, restoration and/ or conservation opportunities. Trends in both population size and the total diversity of significant native species also provide valuable tools in monitoring the overall ecological health of landscapes. Significant species abundance and occurrence information extracted from an earlier floristic data base (Brunton 1998), for example, has been applied to various environmental management purposes in the City of Ottawa, including sensitive areas determinations, the relative rating of different natural areas, and for ecological integrity monitoring. None of these applications can be confidently undertaken, however, without an accurate and comprehensive listing of floristic diversity.

A total of 1,569 species, subspecies and hybrid vascular plant taxa are known to occur (or to have occurred) within the City of Ottawa (former Region of Ottawa-Carleton). Nomenclature in the following list generally follows the most recent taxonomic treatments (e.g. Flora of North America series), with synonyms frequently employed in the Ottawa area noted in brackets. The annotated list is compiled from a variety of sources, including:

· review of verifiable regional literature (see References);

· examination of preserved specimens in the major contemporary depositories of City of Ottawa floristic information, including the Canadian Museum of Nature (CAN), Agriculture Canada (DAO), the Royal Ontario Museum (TRT) and the private herbarium of Daniel F. Brunton (Dfb);

· input from experienced and expert field botanists (see Acknowledgments).

1.1 Status of native taxa

The native vascular flora of the City of Ottawa (former Region of Ottawa-Carleton), including a small number of taxa with both native and non-native populations, includes 1,014 vascular plant species, subspecies and hybrids. Native species designated as ‘Common’ occur frequently within the City of Ottawa, often in large numbers, throughout their appropriate, typically widespread habitat(s). ‘Uncommon’ taxa are found only occasionally within suitable habitat, often in small numbers. The habitat of ‘Uncommon’ species is often geographically limited as well. ‘Rare’ taxa in Ottawa (their names highlighted in bold type) represent native species, subspecies and varieties which further designated as follows:

(PS) Provincial Conservation Concern - typically known from fewer than 100 populations known in Ontario; the NatureServe subnational conservancy status rank (SRANK) assigned to each species by the Ontario Heritage Information Centre (Oldham 1999) is noted, followed by the statement of their status in Ottawa. NatureServe codes employed here are:

o S1 - Extremely rare in Ontario; usually 5 or fewer occurrences;

o S2 - Very rare in Ontario; usually between 6 and 20 occurrences or with many individuals in fewer occurrences;

o S3 - Rare in Ontario; usually between 21 and 100 occurrences;

o S4 - Uncommon to locally common in Ontario and apparently secure; usually between 101 and 1000 occurrences.

The provincial status of such taxa are updated, when and as data become available. Such changes can be reviewed at any time on the Ontario Heritage Information Centre web page: http://www.mnr.gov.on.ca/MNR/nhic/species/listout_track.cfm?el=p&alpha=a.

(RS) - Regionally Significant - known from 10 or fewer contemporary populations (post-1969) in the City of Ottawa. This includes the Rare (5 or fewer populations) and Sparse (6 to 10 populations) categories employed by Gillett & White (1978) and Brunton (1998). Species known only from pre-1970 records are annotated as Rare (Historic). The year 1970 was selected as a reasonable limit of our understanding of ‘contemporary’ since it constitutes a sufficiently long period of time (35 years) for the development of a comprehensive set of data while still offering the likelihood of substantially unchanged site conditions at particular locations.

Some listings for native vascular plant species are annotated in the ‘Sites/ Status’ column to provide additional information on their status within the City of Ottawa. Those qualifiers include:

o [site name]* - an asterisk following a particular site name indicates that two to four separate populations of this significant species are known from this particular site. If the number of populations (geographically separated occurrences) within a particular location is known to be greater than four, that is explicitly stated.

o Uncommon [number] - a bracketed numeral in the status column indicates the number of sites (under 20) for species which were previously considered to be Regionally Rare in Gillett & White (1978) and/ or Brunton (1998) but for which between 11 and 20 contemporary populations are known. These are considered to have a measure of special features significance at a Regional (City of Ottawa) level but not to the level of Regionally Rare taxa. The names of such species are cited in bold type to further distinguish them more widespread uncommon taxa.

Native hybrids involving at least one rare parent are also considered Regionally Significant. Hybrids between common or uncommon taxa, and adventive species (taxa native elsewhere in North America but occurring here as a result of human activity), are not so listed however.

Status statements reflect the known distribution of each taxon as supported by specimens in significant City of Ottawa voucher collections. Credibly documented citations in botanical literature and reports (as listed) are also considered. Populations known from somewhat older records (1950-1969) from sites likely to have retained those particular species (e.g. the middle of large area known to have maintained its natural character) are also included as ‘contemporary. The status statement for species with both native and introduced populations applies to the native portion of the population, unless otherwise stated.

1.2 Non-native (introduced) taxa

A substantial proportion (36%) of the flora of the City of Ottawa is not native to this area. These 571 taxa are indicated by the symbol ‘#’ in the column following their scientific name. Taxa so indicated include species and hybrids not native to North America (introductions), as well as adventives - taxa native elsewhere in North America but established in the City of Ottawa as a result of ±recent (historic period) human activity.

Species marked with the introduced symbol within square brackets ‘[#]’ have both native and non-native populations in Ottawa. As noted above, status statements for species with both native and introduced populations apply to the native populations.

Status designations for non-native plants species are less precise than they are for native taxa since the interpretation of such information is typically less useful. This reflects the frequently arbitrary distribution of such human-assisted plants and their limited or even negative natural environment values. In that regard, it can be especially difficult to determine if ‘wild’ occurrences of cultivated plants represent individuals persisting after planting or established, reproducing populations. We have erred on the side in including such ambiguous taxa on the list.

Non-native taxa designated as ‘Common’ are present in large numbers in at least a substantial portion of the City of Ottawa (e.g. several geographic townships). ‘Uncommon’ non-native taxa are seen infrequently in the City, typically occurring in small numbers but over a relatively large area of the municipality. ‘Rare’ non-native species are known from a small number of contemporary records, typically five or fewer populations being known.

1.3 New Data

A data base such as this is dynamic and reflects the state of knowledge of a complex subject at a particular time. In this case, the cut-off date is 15 April 2005. While it is important and worthwhile to periodically present such data in a single package, new information continues to accumulate. Documentation of supplementary data, therefore, is important for the maintenance of a complete and applicable data base. Users of floristic data in Ottawa, be they amateur naturalists or professional field botanists, can make important contributions by documenting such observations and findings.

The most useful method for documenting new records is through preservation of a suitably prepared voucher specimen in a public herbarium, such as one of the collections cited in this document. Observations of species of Conservation Concern can also be documented by filing a Species Report on the Ontario Natural Heritage Centre web page at http://www.mnr.gov.on.ca/MNR/nhic/species/listout_track.cfm?el=p&alpha=a. The record becomes part of the province-wide data base directing many conservation and management efforts across Ontario. Reports of additional records of significant Ottawa vascular plant taxa would also be welcomed by the author (bruntonconsulting@rogers.com).

1.4 Annotated list

Scientific Name	#	Common Name	Status/ Sites
LYCOPODIACEAE (Clubmoss Family)
Diphasiastrum complanatum (L.) Holub (Lycopodium complanatum L.)		Northern Ground-cedar	RS (7): Marshall Bay; Stony Swamp CA; The Burnt Lands; Greely East; Magladry Road South Vars East; Ont. Land Corp.
Diphasiastrum digitatum (A. Br.) Holub (Lycopodium digitatum A. Br.; L. flabelliforme (Fern.) Blanch.)		Ground-cedar	Common
Diphasiastrum ×habereri (House) Holub (D. digitatum (A. Br.) Holub x tristachyum (Pursh) Holub)		hybrid Ground-cedar	RS (3): Stony Swamp CA; Marshall Bay; South March Highlands.
Diphasiastrum tristachyum (Pursh) Holub (Lycopodium tristachyum Pursh)		Ground-cedar	RS (7*): Mer Bleue CA; Constance Bay (Sand Hills); Stony Swamp CA (2+ populations), South March Highlands; Vars West; Marlborough Forest (Paden Road alvar); Marathon West
Diphasiastrum ×zeilleri (Rouy) Holub (D. complanatum (L.) Holub x tristachyum (Pursh) Holub)		hybrid Ground-cedar	RS (3): Marshall Bay; Fitzroy Harbour; Limestone Road
Huperzia lucidula (Michx.) Trev. (Lycopodium lucidulum Michx.)		Shining Clubmoss	Common (local)
Huperzia selago (L.) Bernh. (Lycopodium selago L.)		Mountain Clubmoss	Provincial Conservation Concern (S3S4); RS (1*): Stony Swamp CA*
Lycopodiella inundata (L.) Holub (Lycopodium inundatum L.)		Bog Clubmoss	RS (8*): Mer Bleue CA*; Stony Swamp CA; Magladry Road South; Vars East; Vars West; Herberts Corner Bog; Ont. Land Corp; Anderson Road.
Lycopodium annotinum L.		Running Clubmoss	Common
Lycopodium clavatum L.		Staghorn Clubmoss	Common
Lycopodium dendroideum Michx.		Common Ground-pine	Common
Lycopodium hickeyi Wagner, Beitel & Moran (L. obscurum L. var. isophyllum Hickey)		Hickey's Ground-pine	Uncommon
Lycopodium lagopus (Laest.) Zin. ex Kuz. (L. clavatum L. var. monostachyon Grev. & Hook.)		One-cone Clubmoss	RS (2): Mer Bleue CA.; Osgoode Swamp (Springhill Bog).
Lycopodium obscurum L.		Ground-pine	Uncommon [16]
EQUISETACEAE (Horsetail Family)
Equisetum arvense L.		Field Horsetail	Common
Equisetum fluviatile L.		Water Horsetail	Common
Equisetum hyemale L.		Scouring Rush	Common
Equisetum ×litorale Kuhl. (E. arvense L. x fluviatile L.)		Shoreline Horsetail	Rare
Equisetum ×mackaii (Newm.) Brichan (E. x trachydon A. Br.; E. hyemale L. x variegatum Schleich.)		hybrid Horsetail	Rare
Equisetum palustre L.		Marsh Horsetail	RS (5): Crystal Bay (Beatty Point); Stony Swamp CA; Mer Bleue CA; Magladry Road South; Duck Islands.
Equisetum pratense Ehrh.		Meadow Horsetail	Uncommon [14]
Equisetum scirpoides Michx.		Dwarf Scouring-rush	Common
Equisetum sylvaticum L.		Woodland Horsetail	Common
Equisetum variegatum Schleich.		Variegated Scouring-rush	Uncommon
SELAGINELLACEAE (Spikemoss Family)
Selaginella eclipes Buck (S. apoda (L.) Fern., p. pt.)		Meadow Spikemoss	RS (6): Shirleys Bay (Innis Point); Morris Island (Lavergne Bay); Marshall Bay; Wattersons Corners; Fitzroy Harbour; Marlborough Forest.
Selaginella rupestris (L.) Spring		Rock Spikemoss	RS (6*): Carp Hills *(Carp Barrens; Carp); Constance Bay (sand Hills); The Burnt Lands; Morris Island (Mississippi Snye); South March Highlands; Panmure Alvar.
ISOETACEAE (Quillwort Family)
Isoetes ×dodgei Eat. (I. echinospora Dur. x riparia Engelm.)		Dodge's Quillwort	RS (7): Woodridge; Crown Point; Buchans Bay; Fitzroy Provincial Park*; Horseshoe Bay; Britannia CA; Deschenes Lookout ESA
Isoetes echinospora Dur. ssp. muricata (Dur.) Löve & Löve		Spiny-spored Quillwort	Uncommon
Isoetes ×hickeyii Taylor & Luebke (I. echinospora Dur. x macrospora Dur.)		Hickey's Quillwort	RS (1): Deschenes Lookout ESA
Isoetes macrospora Dur. (I. lacustris, p. pt.)		Large-spored Quillwort	RS (2): Constance Bay shores; Deschenes Lookout ESA.
Isoetes riparia Engelm.		River Quillwort	Provincial Conservation Concern (S3); RS (10): Woodridge; McLarens Landing; Crown Point; Morris Island (Morris Island CA; Chats Dam); Fitzroy Provincial Park*; Buchans Bay; Horseshoe Bay; Britannia CA*; Deschenes Lookout ESA; Champlain Bridge; Lemieux Islands.
OPHIOGLOSSACEAE (Grapefern Family)
Botrychium dissectum Spreng. (incl. forma obliquum (Muhl.) Fern.)		Cut-leaved Grapefern	Uncommon
Botrychium lanceolatum (Gmel.) Angstr.		Daisy-leaved Moonwort	Provincial Conservation Concern (S3); RS (5): Stony Swamp CA; South March Highlands; Baxter CA; Pinhey Forest; Britannia CA.
Botrychium matricariifolium A. Br.		Matricary Grapefern	Common
Botrychium minganense Victorin		Mingan Moonwort	RS (1*): Stony Swamp CA*
Botrychium multifidum (Gmel.) Rupr. (incl. var. intermedium (Eat.) Farw.)		Leathery Grapefern	Common
Botrychium oneidense (Gilb.) House		Blunt-lobed Grapefern	Provincial Conservation Concern (S3); RS (2): Woodlawn; Bell High School Woods.
Botrychium rugulosum W.H. Wagner (B. ternatum, auct.)		St. Lawrence Grapefern	Provincial Conservation Concern (S2); RS (3): Pinhey Forest; Stony Swamp CA; Magladry Road South.
Botrychium simplex E. Hitchc.		Least Moonwort	Uncommon
Botrychium virginianum (L.) Sw.		Rattlesnake Fern	Common
Ophioglossum pusillum Raf. (O. vulgatum L. var. pseudopodium (Blake) Farw.)		Adder's-tongue Fern	RS (5*): Stony Swamp CA (several populations); Manions Corners; Leitrim (several populations); Shirleys Bay (Innis Point); South Gloucester.
OSMUNDACEAE (Flowering-fern Family)
Osmunda cinnamomea L.		Cinnamon Fern	Common
Osmunda claytoniana L.		Interrupted Fern	Uncommon
Osmunda regalis L. var. spectabilis (Willd.) Gray		Royal Fern	Common
PTERIDACEAE (Maidenhair Fern Family)
Adiantum pedatum L.		Maidenhair Fern	Uncommon
Cryptogramma stelleri (Gmel.) Prantl.		Slender Cliffbrake	RS (3): Rockcliffe Park ESA; Riverside Park; Fitzroy Prov. Park.
DENNSTAEDTIACEAE (Bracken Fern Family)
Dennstaedtia punctilobula (Michx.) Moore		Hay-scented Fern	Uncommon
Pteridium aquilinum (L.) Kuhn var. latiusculum (Desv.) Underw.		Bracken	Common
THELYPTERIDACEAE (Marsh Fern Family)
Phegopteris connectilis (Michx.) Watt		Northern Beech Fern	Common (local)
Thelypteris noveboracensis (L.) Nieuwl.		New York Fern	Uncommon
Thelypteris palustris (Salisb.) Schott		Marsh Fern	Common
BLECHNACEAE (Chain Fern Family)
Woodwardia virginica (L.) Sm.		Virginia Chain Fern	RS (2*): Mer Bleue CA (common); Herberts Corners Bog.
ASPLENIACEAE (Spleenwort Fern Family)
Asplenium platyneuron (L.) Oakes		Ebony Spleenwort	RS (2*): Stony Swamp CA (6* populations); South Gloucester.
Asplenium rhizophyllum L. (Camptosorus rhizophyllus (L.) Link)		Walking Fern	RS (9): Barrhaven; Mud Pond; Buchans Bay West; Marlborugh Forest (Cedar Grove Trail); Corkery; Constance Creek; Dunrobin; South Gloucester; Stony Swamp CA.
Asplenium trichomanes L. ssp. quadrivalens Meyer		Tetraploid Maidenhair Spleenwort	RS (3): Barrhaven; Stony Swamp CA; Rockcliffe Park ESA.
Asplenium trichomanes L. ssp. trichomanes		Diploid Maidenhair Spleenwort	RS (2): South March Highlands; Carp Hills.
DRYOPTERIDACEAE (Woodfern Family)
Athyrium filix-femina (L.) Roth var. angustum (Willd.) Lawson		Lady Fern	Common
Cystopteris bulbifera (L.) Bernh.		Bulblet Bladder-fern	Common
Cystopteris fragilis (L.) Bernh.		Fragile Fern	Common
Cystopteris tenuis (Michx.) Desv. (C. fragilis (L.) Bernh. var. mackayii Lawson)		Mackay's Brittle Fern	Common
Deparia acrostichoides (Sw.) Kato (Athyrium thelypterioides (Michx.) Desv.)		Silvery Spleenwort	Uncommon
Diplazium pycnocarpon (Spreng.) Broun (Athyrium pycnocarpum (Spreng.) Tidestr.)		Glade Fern	RS (8*): South March Highlands; Antrim Black Maple ANSI; Antrim Woodlot; North Gower*; Manotick ANSI; Vars East; South Gloucester; Cardinal Creek.
Dryopteris ×benedictii Wherry (D. carthusiana (Vill.) Fuchs x clintoniana (Eat.) Dow.)		Benedict's Woodfern	Rare
Dryopteris ×boottii (Tuckerm.) Underw. (D. cristata (L.) A. Gray x intermedia (Muhl.) A. Gray)		Boott's Woodfern	Uncommon
Dryopteris carthusiana (Vill.) Fuchs (D. spinulosa (Muell.) Watt)		Spinulose Woodfern	Common
Dryopteris clintoniana (Eat.) Dow.		Clinton's Woodfern	Uncommon
Dryopteris clintoniana (Eat.) Dow. x cristata (L.) A. Gray		hybrid Woodfern	Rare
Dryopteris cristata (L.) A. Gray		Crested Woodfern	Uncommon
Dryopteris ×dowellii Wherry (D. clintoniana (Eat.) Dow. x intermedia (Muhl.) A. Gray)		Dowell's Woodfern	Rare
Dryopteris goldiana (Hook.) A. Gray		Goldie's Woodfern	RS (7): Beechwood cemetery; Antrim Black Maple ANSI; Antrim; South March Highlands; Marlborough Forest; Little's Woods; South Gloucester.
Dryopteris intermedia (Muhl.) A. Gray		Evergreen Woodfern	Common
Dryopteris marginalis (L.) A. Gray		Marginal Shieldfern	Common
Dryopteris ×mickelii J. Peck (D. clintoniana (Eat.) Dow. x goldiana (Hook.) A. Gray)		hybrid Woodfern	RS (3): Beechwood; Cody Creek Black Maple ANSI; South March Highlands.
Dryopteris ×triploidea Wherry (D. carthusiana (Vill.) Fuchs x intermedia (Muhl.) A. Gray)		Triploid Woodfern	Uncommon
Dryopteris ×uliginosum (A. Br.) Druce (D. carthusiana (Vill.) Fuchs x cristata (L.) A. Gray)		hybrid Woodfern	Rare
Gymnocarpium dryopteris (L.) Newm.		Oak Fern	Common
Gymnocarpium robertianum (Hoffm.) Newm.		Limestone Oak Fern	Provincial Conservation Concern (S2); RS (Historic): old record (Albion Wetland)
Matteuccia struthiopteris (L.) Todaro		Ostrich Fern	Common
Onoclea sensibilis L.		Sensitive Fern	Common
Polystichum acrostichoides (Michx.) Schott		Christmas Fern	Uncommon [19*]
Woodsia oregana D.C. Eat. ssp. cathcartiana (Robins.) Wind.		Cathcart's Woodsia	Provincial Conservation Concern (S3); Extirpated: South March Highlands.
Woodsia ilvensis (L.) R. Br.		Rusty Woodsia	RS (2*): Stony Swamp CA*; South March Highlands*.
AZOLLACEAE (Mosquito Fern Family)
Azolla caroliniana Willd.		Mosquito Fern	Provincial Conservation Concern (S3); Extirpated (?): large populations along Rideau River & Rideau Canal below Mooneys Bay, 1998 & 2003.
POLYPODIACEAE (Polypody Fern Family)
Polypodium appalachianum Haufler & Windham (P. virginianum L. forma acuminatum Fern.)		Appalachian Polypody	Provincial Conservation Concern (S1); RS (1): Rothwell Heights.
Polypodium virginianum L.		Common Polypody	Common
TAXACEAE (Yew Family)
Taxus canadensis Marsh.		Canada Yew	Common
PINACEAE (Pine Family)
Abies balsamea (L.) Mill.		Balsam Fir	Common
Larix laricina (Du Roi) K. Koch		Larch	Common
Picea glauca (Moench) Voss		White Spruce	Common
Picea mariana (Mill.) BSP.		Black Spruce	Uncommon (locally abundant) [11]
Pinus banksiana Lamb.		Jack Pine	RS (3*): Constance Bay Sand Hills (locally abundant); Baskins Beach*; Carp Hills [also several large plantations].
Pinus resinosa Ait.		Red Pine	Uncommon (frequently planted) [15]
Pinus strobus L.		White Pine	Common
Pinus sylvestris L.	#	Scot's Pine	Rare [frequently planted]
Tsuga canadensis L.		Eastern Hemlock	Common
CUPRESSACEAE (Cypress Family)
Juniperus communis L.		Common Juniper	Common
Juniperus virginiana L.		Red Juniper	Uncommon
Thuja occidentalis L.		White Cedar	Common
TYPHACEAE (Cat-tail Family)
Typha angustifolia L.		Narrow-leaved Cat-tail	Common
Typha ×glauca Godron (T. angustifolia L. x latifolia L.)		hybrid Cat-tail	Uncommon
Typha latifolia L.		Common Cat-tail	Common
SPARGANIACEAE (Bur-reed Family)
Sparganium americanum Nutt.		American Bur-reed	RS (5): Britannia CA; Stony Swamp CA; Mer Bleue CA; Highway 7 west of Stittsville; Petrie Islands.
Sparganium androcladum (Engelm.) Morong		Branching Bur-reed	Provincial Conservation Concern (S3); RS (1) Historic: Old record, Billings Bridge.
Sparganium emersum Rehm. (S. chlorocarpum Rydb.)		Green Bur-reed	Common
Sparganium eurycarpum Engelm.		Broad-fruited Bur-reed	Common
Sparganium fluctuans (Morong) Robins.		Floating Bur-reed	RS (5): Upper Duck Island; Lower Duck Island; Greens Creek CA; South March Highlands; Crown Point.
Sparganium natans L. (S. minimum (Hartm.) Fries)		Small Bur-reed	RS (9*): Huntley Wetland; Poole Creek Wetland *(Rothbourne Swamp, south of Dibblie Quarry); Mer Bleue CA; Stony Swamp CA; Morris Island; Marlborough Forest; Dwyer Hill; Jinkinson Road.
POTAMOGETONACEAE (Pondweed Family)
Potamogeton amplifolius Tuckerm.		Large-leaf Pondweed	RS (5): Constance Creek; Huntley Creek; Marlborough Forest (Brassils Ck); Baskins Beach; Deschenes Lookout.
Potamogeton crispus L.	#	Crisped Pondweed	Uncommon (locally abundant)
Potamogeton epihydrus Raf.		Ribbonleaf Pondweed	Uncommon
Potamogeton foliosus Raf.		Leafy Pondweed	Common
Potamogeton friesii Rupr.		Fries’ Pondweed	RS (1): Britannia CA.
Potamogeton gramineus L.		Grassleaf Pondweed	Common
Potamogeton illinoensis Morong		Illinois Pondweed	RS (3): Duck Islands; South March Highlands; Fitzroy Provincial Park.
Potamogeton natans L.		Floating Pondweed	Uncommon
Potamogeton nodosus Poir.		Longleaf Pondweed	Uncommon
Potamogeton obtusifolius Mert. & Koch		Blunt-leaf Pondweed	RS (1): Poole Creek Wetland (Rothbourne Swamp).
Potamogeton perfoliatus L.		Perfoliate Pondweed	Uncommon (locally abundant in Ottawa River)
Potamogeton praelongus Wulf.		White-stemmed Pondweed	RS (1): Constance Lake
Potamogeton pusillus L.		Small Pondweed	Uncommon
Potamogeton richardsonii (A. Benn.) Rydb.		Richardson's Pondweed	Common
Potamogeton robbinsii Oake		Robbin's Pondweed	Uncommon (locally abundant in Ottawa River)
Potamogeton spirillus Tuckerm.		Northern Snailseed Pondweed	Uncommon
Potamogeton vaseyi Robbins		Vasey's Pondweed	RS (5*): Britannia CA; Morris Island*; Deschenes Lookout ESA; Cumberland*; Petrie Islands.
Potamogeton zosteriformis Fern.		Zig-zag Pondweed	Common
Stuckernia pectinata (L.) Borner (Potamogeton pectinatus L.)		Sago Pondweed	Common
ZANNICHELLIACEAE (Horned Pondweed Family)
Zannichellia palustris L.		Horned Pondweed	RS (3): Andrew Haydon Park; Britannia Bay; Hope Cloutier Park.
NAJADACEAE (Naiad Family)
Najas flexilis (Willd.) R.& S.		Naiad	Common
SCHEUCHZERIACEAE (Nut-grass Family)
Scheuchzeria palustris L.		Bog Nut-grass	RS (2*): Mer Bleue CA; Marlborough Forest (Richmond Fen; Phragmites Fen).
JUNCAGINACEAE (Arrow-grass Family)
Triglochin maritimum L.		Arrow-grass	RS (4*): Richmond Fen; Phragmites Fen; Long Swamp; Carlsbad Springs East; (adventive at Stittsville; Carp).
Triglochin palustre L.		Arrow-grass	RS (1): Albion Wetland.
ALISMATACEAE (Water-plantain Family)
Alisma gramineum Gmel.	[*]	Grass-leaved Water-plantain	Provincial Conservation Concern (S3S4); RS (2): Andrew Haydon Park; Britannia Bay [also adventive].
Alisma triviale Pursh		Water-plantain	Common
Sagittaria cuneata Sheld.		Arrowhead	RS (6): Champlain Bridge; Britannia Bay.; Marlborough Forest (Brassils Creek); Constance Lake; Horseshoe Bay; Kars (Rideau River).
Sagittaria graminea Michx.		Grass-leaved Arrowhead	Uncommon (locally abundant).
Sagittaria latifolia Willd.		Broad-leaved Arrowhead	Common
Sagittaria rigida Pursh		Stiff-leaved Arrowhead	Uncommon
BUTOMACEAE (Flowering Rush Family)
Butomus umbellatus L.	#	Flowering-rush	Uncommon
HYDROCHARITACEAE (Frog's-bit Family)
Elodea canadensis Michx.		Canada Waterweed	Common
Elodea nuttallii (Planch.) St. John		Nuttall's Waterweed	RS (4): Deschenes Lookout; Fitzroy Harbour; Horseshoe Bay; Shirleys Bay.
Hydrocharis morsus-ranae L.	#	Frog's-bit	Common
Vallisneria americana Michx.		Eel-grass	Common
POACEAE (Grass Family)
Agropyron cristatum (L.) Gaertner ssp. pectinatum Tzvelev	#	Crested Wheat Grass	Rare
Agrostis capillaris L. (A. tenuis Sibth.)	#	Brown-top Bent-grass	Rare
Agrostis gigantea Roth (A. alba auct., non L.)		Red-top	Common
Agrostis perennans (Walt.) Tuckerm		Autumn Bent-grass	Uncommon (rivershores)
Agrostis scabra Willd.		Tickle Grass	Uncommon
Agrostis stolonifera L. (A. alba L.; A. palustris Huds.)		Creeping Bent Grass	Common
Alopecurus aequalis Sobol.		Water Foxtail Grass	Uncommon
Alopecurus geniculatus L.	#	Bent Foxtail Grass	Rare
Alopecurus pratensis L.	#	Meadow Foxtail Grass	Uncommon
Andropogon gerardii Vittm.	[#]	Big Bluestem	RS (6*): Morris Island*; Shirleys Bay (several populations); Crystal Bay; Baskins Beach; Constance Bay shores; Fitzroy Provinical Park*; Champlain Bridge (plus adventives).
Anthoxanthum nitens (Weber) Schouten & Veldkamp (Hierochloe odorata (L.) Beauv.)	[#]	Sweet Grass	RS (3): Shirleys Bay (Innis Point) ; Vars West; Vars East (uncommonly adventive along roads)
Anthoxanthum odoratum L.	#	Vernal Grass	Rare
Arrhenatherum elatius (L.) Beauv. ex Presl	#	Tall Oat-grass	Rare
Avena fatua L.	#	Wild Oats	Uncommon
Avena sativa L.	#	Oats	Rare
Beckmannia syzigachne (Steudel) Fern.	#	Slough Grass	Rare
Brachyelytrum aristosum (Michx.) Trel. (Brachyelytrum erectum (Schreb.) P. Beauv. var. glabratum (Vasey ex. Millsp.) Koyama & Kowano)		Bearded Shorthusk	Uncommon [16]
Brachyelytrum erectum (Schreb.) P. Beauv.		Southern Bearded Shorthusk	RS (1): Morgan’s Grant Park
Briza media L.	#	Quaking Grass	Rare
Bromus ciliatus L.		Fringed Brome Grass	Uncommon
Bromus hordeaceus L. (B. mollis L.)	#	Soft Chess	Rare
Bromus inermis Leyss.	#	Common Brome Grass	Common
Bromus japonicus Thunb. ex Murr.	#	Japanese Chess	Rare
Bromus kalmii A. Gray		Kalm's Brome Grass	Uncommon [14]
Bromus latiglumis (Shear) A. Hitchc. (B. altissimus Pursh; B. purgans, auct.; B. pubescens, auct., non Muhl. ex Willd)		Canada Brome Grass	RS (2): Edwards; Rideau River (Alta Vista).
Bromus racemosus L.	#	Chess Grass	Rare
Bromus secalinus L.	#	Chear Chess	Rare
Bromus tectorum L.	#	Downy Chess	Rare (locally common)
Calamagrostis canadensis (Michx.) Beauv.		Canada Bluejoint	Common
Calamagrostis epigejos (L.) Roth	#	Bluejoint	Rare
Calamagrostis stricta (Timm) Koeler ssp. inexpansa (A. Gray) Greene	#	Northern Reed Grass	Rare [native elsewhere in Ontario]
Cinna arundinacea L.		Stout Woodreed	Uncommon [13]
Cinna latifolia (Trev. ex Goepp.) Griseb.		Drooping Woodreed	Uncommon [18]
Cynosurus cristatus L.	#	Crested Dog's-tail	Rare
Dactylis glomerata L.	#	Orchard Grass	Common
Danthonia spicata (L.) Beauv. ex R. & S.		Poverty Grass	Common
Deschampsia cespitosa (L.) Beauv.		Tufted Hair Grass	RS (3*): Shirleys Bay (Innis Point; Watts Creek); Marathon Forest; Panmure Alvar.
Deschampsia flexuosa (L.) Trin.		Wavy Hair Grass	RS (2*): Constance Bay Sand Hills (common); Stony Swamp CA.
Dichanthelium acuminatum (Sw.) Gould & Clarke ssp. columbianum (Scribn.) Freckmann & LeLong (P. sabulorum Nash. p. pt.; P. tsugetorum Nash; P. ovale, auct.)		Northern Panic Grass	RS (3): Constance Bay Sand Hills; Ontario Land Corp.; Shirleys Bay (Innis Point).
Dichanthelium acuminatum (Sw.) Gould & Clarke ssp. fasciculatum (Torr.) Freckmann & LeLong (Panicum lanuginosum Ell. var. fasciculatum Fern.; P. acuminatum auct., non Sw.)		Panic Grass	Common
Dichanthelium acuminatum (Sw.) Gould & Clarke ssp. implicatum (Scrib.) Freckmann & LeLong (Panicum implicatum Scribn.)		Small Panic Grass	Common
Dichanthelium acuminatum (Sw.) Gould & Clarke ssp. lindheimeri (Nash) Freckmann & LeLong (Panicum lindheimeri Nash; [P. lanuginosum Ell. var. septentrionalis (Fern.) Fern. ? ])		Smooth Panic Grass	RS (4): Morris Island (Lavergne Bay); Fitzroy Provincial Park; Champlain Bridge; Shirleys Bay .
Dichanthelium boreale (Nash) Freckmann (Panicum boreale Nash)		Northern Panic Grass	RS (6*): Constance Bay Sand Hills* (common); Fitzroy Provincial Park; Carp Hills (Carp Barrens); Duck Islands; Carlsbad Springs SW.
Dichanthelium depauperatum (Muhl.) Gould (Panicum depauperatum Muhl.)		Impoverished Panic Grass	RS (6*): Constance Bay Sand Hills* (common); Shirleys Bay (Innis Point); Bruce Pit Woods; Vars West; Pine Grove Forest; Findlay Creek Wetland.
Dichanthelium latifolium (L.) Harvill (Panicum latifolium L.)		Broad-leaved Panic Grass	RS (1): Fitzroy Provincial Park.
Dichanthelium linearifolium (Scribn.) Gould (Panicum linearifolium Scribn.)		Narrow-leaved Panic Grass	Common (local)
Dichanthelium xanthophysum (A. Gray) Freckmann (P. xanthophysum A. Gray)		Yellow Panic Grass	RS (5*): Constance Bay Sand Hills* (common); The Burnt Lands*; Britannia; French Hill Swamp; Vars East.
Digitaria ischaemum (Schreb.) Muhl.	#	Small Crab Grass	Common
Digitaria sanguinalis (L.) Scop.	#	Large Crab Grass	Common (especially in gardens)
Echinochloa crusgalli (L.) Beauv.	#	Barnyard Grass	Common
Echinochloa muricata (Michx.) Fern. (E. microstchya (Wieg.) Rydb.; E. pungens (Poir.) Rydb, p. pt.; E. wiegandii (Fass.) McNeill & Dore)		Barnyard Grass	Common
Echinochloa walteri (Pursh) Heller		Walter's Barnyard Grass	Provincial Conservation Concern (S3); RS (1): Constance Creek [adventive?].
Elymus canadensis L.	[#]	Canada Rye Grass	RS (2*): Morris Island (Chats Dam); Constance Bay* [plus adventives]
Elymus hystrix L. (Hystrix patula Moench)		Bottlebrush Grass	Uncommon
Elymus ×maltei Bowden (E. canadensis L. x virginicus L.)		hybrid Rye Grass	RS (Historic): old record , ‘Ottawa’
Elymus repens (L.) Gould (Agropyron repens (L.) Beauv.)	#	Quack Grass	Common
Elymus trachycaulus (Link) Gould (s.l.)		Wheat Grass	RS (10*): Constance Bay Sand Hills; Mer Bleue CA; Lemieiux Islands; The Burnt Lands (several); Morris Island*; Panmure Alvar; Carp Hills* (Carp; Carp Barrens); Marathon Forest; Mud Pond; South Gloucester.
Elymus villosus Muhl. ex Willd.		Hairy Rye Grass	RS (1): Stillwater Creek.
Elymus virginicus L.		Wild Rye Grass	Common
Elymus wiegandii Fern. (Elymus canadensis L. var. wiegandii (Fern.) Bowden)		Wiegand's Wild Rye	RS (Historic): old records, Billings Bridge,Vincent Massey Park; Bear Brook.
Eragrostis cilianensis (All.) Lutati ex Hubb. (E. megastachya (Koeler) Link)	#	Stinking Love Grass	Rare
Eragrostis frankii C. Meyer		Frank's Love Grass	RS (8*): Stittsville*; Long Swamp; The Burnt Lands*; Fallowfield; Carp Airport; Manotick; Rideau River Provincial Park; Vars East.
Eragrostis hypnoides (Lam.) BSP.		Mossy Love Grass	RS (1): Petrie Islands.
Eragrostis minor Host (E. pooides R. & S.)	#	Love Grass	Uncommon
Eragrostis pectinacea (Michx.) Nees var. miserrima (Fourn.) Reeder (E. tephrosanthos Schultes)	#	Love Grass	Rare
Eragrostis pectinacea (Michx.) Nees var. pectinacea	#	Pectinate Love Grass	Uncommon
Eragrostis pilosa (L.) Beauv.	#	India Love Grass	Rare [formerly considered native species of Provincial Conservation Concern (S1)]
Festuca brevipila Tracey (F. trachyphylla (Hackel) Krajina; F. longifolia auct.; F. ovina, auct.)	#	Sheep Fescue	Uncommon
Festuca filiformis Pourr. ( F. capillata Lam.; F. tenuifolia Lam.)	#	Hair Fescue	Rare
Festuca rubra L.	#	Red Fescue	Uncommon
Festuca subverticillata (Pers.) Alexeev ( F. obtusa Biehler)		Nodding Fescue	Uncommon
Glyceria borealis (Nash) Batch.		Northern Manna Grass	Uncommon
Glyceria canadensis (Michx.) Trin.		Canada Manna Grass	RS (3): Mer Bleue CA*; Mud Creek; Albion Wetland
Glyceria grandis S. Wats.		Large Manna Grass	Common
Glyceria ×laxa (Scribn.) Scribn (G. canadensis (Michx.) Trin. x grandis S. Wats.)		hybrid Manna Grass	RS (Historic): old record, Mer Bleue CA*
Glyceria maxima (Hartm.) Holmb.	#	Giant Manna Grass	Rare (Mississippi R.)
Glyceria melicaria (Michx.) Hubb.		Long Manna Grass	RS (3): Mer Bleue CA; Vars East; Chapel Hill Forest.
Glyceria ×ottawensis Bowden ( G. canadensis (Michx.) Trin. x striata (Lam.) A. Hitchc.)		hybrid Manna Grass	Rare
Glyceria septentrionalis A. Hitchc.		Southern Manna Grass	RS (1): Lower Duck Island.
Glyceria striata (Lam.) A. Hitchc.		Fowl Manna Grass	Common
Hordeum jubatum L.	#	Foxtail Barley	Common
Hordeum vulgare L.	#	Barley	Rare
Leersia oryzoides (L.) Sw.		Rice Cut-grass	Common
Leersia virginica Willd.		Virginia Cut-grass	Uncommon
Lolium arundinaceum (Schreb.) Darbyshire (Festuca arundinacea Schreb.)	#	Tall Fescue	Uncommon
Lolium perenne L. (incl. Lolium multiflorum Lam.)	#	Perennial Rye grass	Rare
Lolium pratense (Hudson) Darbyshire (Festuca pratensis Hudson)	#	Meadow Fescue	Common (local)
Milium effusum L.		Wild Millet	RS (10*): Morris Island (Lavergne Point); South March Highlands (Trillium Woods) Osgoode Swamp*; Navan; O'Toole Road; Emmett Road; French Hill Creek; Magladry Road South; Bearbrook; Vars East.
Miscanthus sacchariflorus (Maxim.) Hackel	#	Miscanthus	Rare
Molinia caerulea (L.) Moench	#	Moor Grass	Rare
Muhlenbergia frondosa (Poir.) Fern.		Wire-stem Muhlenbergia	RS (4): Deschenes Lookout; Rockcliffe; Petrie Islands; Edwards [plus adventives].
Muhlenbergia glomerata (Willd.) Trin.	[#]	Wild Timothy	Uncommon [11] (plus adventives)
Muhlenbergia mexicana (L.) Trin.		Mexican Muhlenbergia	Common
Muhlenbergia sylvatica Torr. ex A. Gray		Woodland Muhlenbergia	Provincial Conservation Concern (S1); RS (4): Rockcliffe Park ESA; Vincent Massey Park; Billings Bridge Islands ESA; Navan.
Oryzopsis asperifolia Michx.		Mountain Rice Grass	Common
Oryzopsis pungens (Torr. ex Spreng.) Hitchc.		Sharp-leaved Mountain Rice Grass	RS (3): Constance Bay Sand Hills (common); Kanata; Vars West.
Oryzopsis racemosa (Sm.) Ricker ex Hitchc.		Mountain Rice Grass	Uncommon [17]
Panicum capillare L.		Witch Grass	Common
Panicum dichotomiflorum Michx.	#	Panic Grass	Rare
Panicum flexile (Gatt.) Scribn.		Wiry Panic Grass	Uncommon (locally abundant)
Panicum miliaceum L.	#	Millet	Rare
Panicum philadelphicum Bernh. ex Trin.		Philadelphia Panic Grass	Uncommon (locally abundant)
Panicum philadelphicum Bernh. ex Trin. ssp. gattingeri (Nash) Freckmann & Long (P. gattingeri Nash)		Gattinger's Panic Grass	Provincial Conservation Concern (S3); RS (1): Petrie Islands
Panicum tuckermanii Fern. (P. philadelphicum Bernh. ex Trin., p. pt.)		Tuckerman's Panic Grass	RS (7): Petrie Islands; Morris Island; Constance Bay Shores; Shirleys Bay (Innis Point); Britannia CA; Upper Jock River; Carp Airport; Highway 7 North.
Panicum virgatum L.	#	Switch Grass	Rare [native elsewhere in Ontario]
Phalaris arundinacea L.	[#]	Reed Canary Grass	Common (locally abundant introduction)
Phalaris canariensis L.	#	Bird-seed Grass	Rare
Phleum pratense L.	#	Timothy	Common
Phragmites australis (Cav.) Trin. ex Steudel ssp. americana Saltonstall, Peterson & Sorong		Common Reed Grass	RS (8*): Shirleys Bay; Mississippi River*; Upper Jock River;; Prospect; Mer Bleue CA; Mud Pond; Albion Wetland*; Marlborough Forest.
Phragmites australis (Cav.) Trin. ex Steudel ssp. australis	#	European Reed Grass	Uncommon (locally abundant adventive)
Poa alsodes A. Gray		Woodland Meadow Grass	RS (4): Kinburn Clay Plain Woods; Osgoode Swamp; Ont. Land Corp.; South Gloucester.
Poa annua L.	#	Annual Meadow Grass	Common
Poa bulbosa L.	#	Bulbous Meadow Grass	Rare
Poa compressa L.	#	Wire Grass	Common
Poa glaucantha Gaudin		Blue Meadow Grass	RS (Historic): old record, Cumberland.
Poa nemoralis L.	#	Wood Meadow Grass	Uncommon
Poa palustris L.		Swamp Meadow Grass	Common
Poa pratensis L.	#	June Meadow Grass	Common
Poa saltuensis Fern. & Wieg.		Forest Meadow Grass	RS (6*): South March Highlands*; Buchans Bay West; Stony Swamp CA; Carlsbad Springs SW; South Gloucester; DND Woods.
Poa trivialis L.	#	Rough Meadow Grass	Rare
Puccinellia distans (Jacq.) Parl.	#	Alkakli Grass	Uncommon
Schizachne purpurascens (Torr.) Swallen		False Melic Grass	Common
Schizachyrium scoparium (Michx.) Nees (Andropogon scoparius Michx.)		Little Bluestem	RS (7*): Morris Island*; Fitzroy Provincial Park; Shirleys Bay*; Crystal Bay; Britannia CA (extirpated); Baskins Beach; Constance Bay shores [* adventives].
Secale cereale L.	#	Rye	Rare
Setaria faberi Herrm.	#	Large Bristlegrass	Rare
Setaria italica (L.) Beauv.	#	Italian Bristlegrass	Rare
Setaria pumila (Poir.) Roemer & Schultes (S. glauca (L.) Beauv.)	#	Pigeon Grass	Common
Setaria verticillata (L.) Beauv.	#	Bur Bristlegrass	Rare
Setaria viridis (L.) Beauv.	#	Green Bristlegrass	Common
Sorghastrum nutans (L.) Nash		Indian Grass	RS (6*): Morris Island*; Constance Bay Shores* (common); Fitzroy Provincial Park; Andrew Haydon Park; Shirleys Bay*; Crystal Bay.
Sorghum bicolor Moench ssp. drummondii (Steudl.) de Wet & Harlan (S. sudanense (Piper) Stapf.)	#	Sudan Grass	Rare
Spartina pectinata Link		Cord Grass	Uncommon (common along Ottawa River)
Sphenopholis intermedia (Rydb.) Rydb.		Slender Wedge Grass	Uncommon [17]
Sporobolus compositus (Poir.) Merr. (Sporobolus asper (Michx.) Kunth)		Dropseed	Provincial Conservation Concern (S1S2); RS (1): Shirleys Bay (Innis Point) [plus roadside adventives].
Sporobolus cryptandrus (Torr.) A. Gray	#	Sand Dropseed	Rare (locally abundant)
Sporobolus heterolepis (A. Gray) A. Gray		Prairie Dropseed	Provincial Conservation Concern (S2); RS (3*): Burnt Lands* (locally abundant); Shirleys Bay (Innis Point - extirpated?); Morris Island (Lavergne Bay).
Sporobolus neglectus Nash		Overlooked Dropseed	Common
Sporobolus vaginiflorus (Torr. ex A. Gray) Wood (s.l.)		Ensheathed Dropseed	Common [taxonomic problem; var. vaginiflorus rare on alvars ?].
Torreyochloa pallida (Torr.) Church var. fernaldii (A. Hitchc.) Dore (T. fernaldii (A. Hitchc.) Church )		Fernald's Manna Grass	RS (4): Mer Bleue CA; South March Highlands; Stony Swamp CA; Fitzroy Prov Park.
Torreyochloa pallida (Torr.) Church var. pallida		Pale Manna Grass	Provincial Conservation Concern (S2); RS (2): Ont. Land Corp; Albion Road South.
Trisetum spicatum (L.) Richter (incl. T. triflorum (Bigel.) A. & D. Löve)		False Oats	RS (Historic): old record, Rockcliffe.
Triticum aestivum L.	#	Wheat	Uncommon
Ventenata dubia (Leers) Cosson	#	grass	Rare
Zea mays L.	#	Corn	Rare
Zizania aquatica L. (incl. Z. aquatica var. subbrevis Boivin)		Southern Wild Rice	RS (6*): Mer Bleue CA; Ont. Land Corp.; Bear Brook* (common); North Castor River (common); North Osgoode Complex; Vars.
Zizania palustris L. var. palustris		Wild Rice	Uncommon
Zizania palustris L. var. interior (Fassett) Dore	#	Western Wild Rice	Rare [native elsewhere in Ontario]
CYPERACEAE (Sedge Family)
Bolboschoenus fluviatilis (Torr.) Sojak (Schoenoplectus fluviatilis (Torr.) Strong; Scirpus fluviatilis (Torr.) A. Gray)		River Bulrush	Uncommon [15]
Bulbostylis capillaris (L.) C. B. Clarke	#	Bulbostylis	Rare [native populations of Provincial Conservation Concern (S3?) in Ontario]
Carex acutiformis Ehrh.	#	sedge	Rare
Carex albursina Sheld.		White-bear Sedge	Uncommon [16]
Carex alopecoidea Tuckerm.		Foxtail Sedge	RS (8): Stony Swamp CA; Manotick ANSI; Stillwater Creek; Third Line West Carleton Woodlot; Champlain Bridge; Elmhurst Street Woods; Severn Street Woods; NRC Woods.
Carex aquatilis Wahl.		Aquatic Sedge	RS (9*): Britannia CA; Champlain Bridge; Chaudiere Rapids; North of Highway 7; Poole Creek Wetland Complex; Duck Islands; Marlborough Forest*; French Hill Swamp; Vars East.
Carex arcta Boott		Bear Sedge	RS (Historic): old records, Vincent Massey Park; Britannia; Constance Bay Sand Hills.
Carex arctata Boott		Compressed Sedge	Common
Carex atherodes Sprengel		Awned Sedge	RS (3): Stony Swamp CA; Osgoode Swamp (Springhill Bog); Burnt Lands.
Carex aurea Nutt.		Golden Sedge	Uncommon (locally abundant)
Carex backii Boott		Back's Sedge	RS (2): South March Highlands; Riverside Park.
Carex bebbii (Bailey) Fern.		Bebb's Sedge	Common
Carex blanda Dew.		Smooth Sedge	Common
Carex brevior (Dew.) Mack.		Short-headed Sedge	RS (4): Ont. Land Corp.; Vars West; Petrie Islands; South March Highlands.
Carex bromoides Willd.		Brome-like Sedge	Common
Carex brunnescens (Pers.) Poir.		Brownish Sedge	Uncommon [12]
Carex canescens L.		Hoary Sedge	Uncommon [16]
Carex castanea Wahl.		Chestnut Sedge	Common
Carex cephaloidea (Dew.) Dew.		Head Sedge	Uncommon [20]
Carex chordorrhiza L.f.		Cord Sedge	RS (2): Mer Bleue CA; Long Swamp.
Carex communis Bailey		Common Sedge	Common
Carex comosa Boott		Bristly Sedge	Uncommon
Carex concinna R. Br.		Elegant Sedge	RS (Historic): old records, Buchans Bay West; Constance Lake; The Burnt Lands.
Carex crawei Dew.		Crawe's Sedge	RS (6*): The Burnt Lands* (common); Shirleys Bay (Innis Point); Morris Island (Lavergne Bay); Marathon Forest; Panmure Alvar; Burritts Rapids.
Carex crawfordii Fern.		Crawford's Sedge	RS (1): Carp Hills (West Ridge).
Carex crinita Lam.		Fringed Sedge	Common
Carex cristatella Britt.		Crested Sedge	Common
Carex cryptolepis Mack.		Hidden-scale Sedge	RS (3): Marlborough Forest (Richmond Fen); The Burnt Lands; Moores Corners; Fernbank Wetland.
Carex cumulata (Bailey) Mack.		Clustered Sedge	RS (2): Heron Gate Woods; Osgoode Swamp (Springhill Bog).
Carex debilis Michx. var. rudgei Bailey		Weak Sedge	RS (8*): Albion Wetland; Pinhey Forest; Pine Grove Forest; Ont. Land Corp.; Greely*; Vars West; Mer Bleue CA.
Carex deflexa Hornem.		Deflexed Sedge	RS (3): Britannia CA; Airbase Woods; Carp Hills (West Ridge).
Carex deweyana Schw.		Dewey's Sedge	Common
Carex diandra Schrank		Two-stamened Sedge	Uncommon
Carex disperma Dew.		Two-seeded Sedge	Uncommon
Carex eburnea Boott		Ivory Sedge	Common
Carex echinata Murr.		Prickly Sedge	RS (8*): Mer Bleue CA* (common); Albion Wetland; Pine Grove Forest; Stony Swamp CA; Carp Hills (Carp Barrens); South March Highlands; Vars West; Ont. Land Corp. (several).
Carex exilis Dew.		Starved Sedge	RS (3*): Mer Bleue CA* (common); Marlborough Forest (Richmond Fen); Long Swamp.
Carex flacca Schreb.	#	Heath Sedge	Rare
Carex flava L.		Yellow Sedge	Common
Carex foenea Willd. (C. aenea Fern.)		Copper Sedge	RS (6*): Hunt Club Creek; Mer Bleue CA; Ont. Land Corp.*; Pine Grove Forest; Petrie Islands; Carp Hills (Carp Barrens) [plus adventives].
Carex folliculata L.		Long Sedge	Provincial Conservation Concern (S3); RS (10): Mer Bleue CA; Bypass Woods; Vars West; Baxter CA; Pinhey Forest; Petrie Islands; Anderson Road; Navan; Magladry Road South; Ont. Land Corp.
Carex formosa Dew.		Handsome Sedge	Provincial Conservation Concern (S3); Uncommon (14): Metcalfe; Marlborough Forest (Flood Road); West Osgoode Swamp; NW Vernon; Vernon Woods; Springhill; South Castor River W; North Osgoode Complex; Metcalfe North; 8th Line N; Pana Road.; Rideau Carleton Woods; Hazeldean Park Woods.
Carex gracillima Schw.		Filiform Sedge	Common
Carex granularis Willd.		Granular Sedge	Common
Carex grayi Carey		Gray's Sedge	Uncommon [18]
Carex grisea Wahl. (C. amphibola Steudel var. turgida Fern.)		Gray Sedge	RS (7*): Britannia CA*; Elmhurst Street Woods*; Shirleys Bay (Shirley’s Brook); Stillwater Creek*; North Gower; Champlain Bridge; Hearts Desire.
Carex gynandra Schw.		sedge	RS (3): Mer Bleue CA; French Hill Creek; Mud Creek.
Carex gynocrates Wormsk. ex Drejer		Ridged Sedge	RS (1): Albion Wetland.
Carex haydenii Dew.		Cloud Sedge	Provincial Conservation Concern (S2); RS (1): Carlsbad Springs SW.
Carex hirtifolia Mack.		Hairy Sedge	Uncommon [16]
Carex hitchcockiana Dew.		Hitchcock's Sedge	Uncommon [20]
Carex houghtoniana Torr. ex Dew.		Houghton's Sedge	RS (7); Baskins Beach; Constance Bay Sand Hills; The Burnt Lands; Stony Swamp CA; Vincent Massey Park; Bruce Pit Woods; Mer Bleue CA.
Carex hystericina Willd.		Porcupine Sedge	Common
Carex interior Bailey		Inland Sedge	Common
Carex intumescens Rudge		Bladder Sedge	Common
Carex ×knieskernii Dew. (C. arctata Boott x castanea Wahl.)		hybrid sedge	Rare
Carex lacustris Willd.		Lake Sedge	Uncommon
Carex lasiocarpa Ehrh.		Slender Sedge	Uncommon (locally abundant)
Carex laxiflora Lam.		Loose-flowered Sedge	Uncommon (Rare west of Rideau River)
Carex lenticularis Michx.		Flat-seeded Sedge	RS (6): Champlain Bridge; Constance Bay Shores; Britannia CA; Deschenes Lookout; Shirleys Bay (Innis Point); Fitzroy Provincial Park.
Carex leptalea Wahl.		Bristle-stalked Sedge	Uncommon
Carex leptonervia Fern.		Finely-nerved Sedge	Uncommon
Carex limosa L.		Mud Sedge	RS (5*): Mer Bleue CA; Marlborough Forest* (Richmond Fen (common); Phragmites Fen); Long Swamp; Albion Wetland; Osgoode Swamp* (Herberts Corners Bog).
Carex livida (Wahl.) Willd.		Lead Sedge	RS (3*): Long Swamp; Albion Wetland; Marlborough Forest* (Richmond Fen; Phragmites Fen).
Carex lucorum Link		Distant Sedge	RS (Extirpated): old record, Billings Bridge.
Carex lupulina Willd.		Hop Sedge	Common
Carex lurida Wahl.		Sallow Sedge	Uncommon [15]
Carex magellanica Lam. (C. paupercula Michx.)		Stunted Sedge	Uncommon [13]
Carex merritt-fernaldii Mack.		Fernald's Sedge	RS (6*): Carp Hills (Carp Barrens*); Hunt Club Creek; Mer Bleue CA; Shirleys Bay (Innis Point); Bruce Pit Woods.
Carex molesta Mack.		Troublesome Sedge	RS (1): Fitzroy Provincial Park.
Carex novae-angliae Schw.		New England Sedge	Provincial Conservation Concern (S3); Uncommon (12): Mer Bleue CA *; Old Dump Woods; Bypass Woods; Albion Wetland; Vars West; Vars East; Osgoode Swamp (Herberts Corners Bog); North Castor River; French Hill Swamp; Anderson Road; Carlsbad Springs SW.
Carex oligosperma Michx.		Few-seeded Sedge	RS (3): Mer Bleue CA; Osgoode Swamp (Herberts Corners Bog); Constance Bay Sand Hills.
Carex ormostachya Wieg.		Necklace Sedge	RS (3): Dwyer Hill; South Gloucester; Stittsville.
Carex pallescens L.		Pale Sedge	Common
Carex pauciflora Lightf.		Few-flowered Sedge	RS (2*): Mer Bleue CA*; Marlborough Forest.
Carex peckii Howe		Peck's Sedge	Common
Carex pedunculata Willd.		Peduncled Sedge	Common
Carex pellita Muhl. (C. lanuginosa, auct.)		Woolly Sedge	Uncommon (locally abundant)
Carex pensylvanica Lam.		Pennsylvania Sedge	Common
Carex plantaginea Lam.		Plantain-leaved Sedge	Uncommon
Carex platyphylla Dew.		Broad-leaved Sedge	RS (Historic): old record, Woodridge.
Carex praegracilis W. Boott	#	Slender Sedge	Uncommon (locally abundant; spreading)
Carex prairea Dew.		Prairie Sedge	RS (2): Albion Wetland; Long Swamp.
Carex prasina Wahl.		Onion Sedge	RS (10): Elmhurst St. Woods; Vars West; Billings Bridge; Magladry Road South; Cambrian Road; Vars East; Ont. Land Corp.; Anderson Road; DND Woods; Chapel Hill Forest.
Carex projecta Mack.		Spreading Sedge	Uncommon
Carex pseudo-cyperus L.		Cypress-like Sedge	Common
Carex radiata (Wahl.) Small (C. rosea, auct., non Willd.)		Stellate Sedge	Common
Carex retrorsa Schw.		Back-turned Sedge	Common
Carex richardsonii R. Br.		Richardson's Sedge	RS (2*): Constance Bay Sand Hills; The Burnt Lands* (common).
Carex rosea Schkuhr ex Willd. (C. convoluta Mack.)		Rolled-up Sedge	Common
Carex sartwellii Dew.		Sartwell's Sedge	RS (Historic): old record, Mer Bleue CA .
Carex scabrata Schw.		Scabrous Sedge	Uncommon
Carex scoparia Willd.		Broom Sedge	RS (9*): Carp Hills* (West Ridge; Carp Barrens); South March Highlands; Whelan Park; Mer Bleue CA; Albion Wetland; South Gloucester; Conroy Woods; Mud Pond; Town Centre Woods*.
Carex siccata Dew. (C. foenea, auct., non Willd.)		Dry Sedge	RS (1*): Constance Bay Sand Hills* (common).
Carex sparganioides Willd.		Bur-reed Sedge	Uncommon [11]
Carex spicata Huds.	#	Spiked Sedge	Rare
Carex sprengelii Dew. ex Sprengel		Sprengel's Sedge	Common
Carex sterilis Willd.		Sterile Sedge	RS (1): Albion Wetland.
Carex stipata Willd.		Crowded Sedge	Common
Carex stricta Lam.		Stiff Sedge	Uncommon [11]
Carex xsubviridula (Kuken.) Fern. (C. flava L. x viridula Michx.))		Hybrid sedge	Rare (Ashton Station)
Carex sychnocephala Carey		Compact Sedge	RS (8): Manotick; Stony Swamp CA; Constance Bay Sand Hills; North Osgoode Complex; Marlborough Forest; Albion Wetland; 8th Line N; South Gloucester.
Carex tenera Dew.		Slender Sedge	Common
Carex tenuiflora Wahl.		Sparse-flowered Sedge	RS (1): Long Swamp.
Carex tonsa (Fern.) Bickn. var. rugosperma (Mack.) Crins (C. rugosperma Mack.)		Rough-seeded Sedge	Common
Carex tribuloides Wahl.		Blunt-broom Sedge	Uncommon
Carex trisperma Dew. var. billingsii Knight		Billing’s Sedge	RS (1): Osgoode Swamp
Carex trisperma Dew. var. trisperma		Three-seeded Sedge	Uncommon [15]
Carex tuckermanii Boott ex Dew.		Tuckerman's Sedge	Common
Carex typhina Michx.		Cat-tail Sedge	Provincial Conservation Concern (S2); RS (3): Greens Creek CA; Britannia CA; Petrie Islands.
Carex umbellata Willd.		Umbrella Sedge	RS (6*): The Burnt Lands*; Metcalfe; Kanata; Baskins Beach; Antrim; Marlborough Forest.
Carex utriculata Boott (C. rostrata Stokes var. utriculata (Boot) Bailey)		Beaked Sedge	RS (7*): Marlborough Forest (Rideau Tp.); Upper Duck Island; Vincent Massey Park; Mer Bleue CA.; Pine Grove Forest; Ont. Land Corp.; Shirleys Bay* (Watts Creek; Innis Point); Fitzroy Provincial Park.
Carex utriculata Boott x vesicaria L.		hybrid sedge	RS (1): Mer Bleue CA
Carex vaginata Tausch		Ensheathed Sedge	RS (3): Long Swamp; Corkery Wetland; Highway 17 North.
Carex vesicaria L.		Inflated Sedge	Uncommon [15]
Carex viridula Michx.		Greenish Sedge	Common
Carex vulpinoidea Michx.		Fox Sedge	Common
Carex woodii Dew.		Wood's Sedge	RS (6): Kinburn Clay Plain Woods; South Gloucester; Vernon Woods; Little's Woods; Pana Road; vicinity of Metcalfe.
Cladium mariscoides (Muhl.) Torr.		Twig-rush	RS (3*): Marlborough Forest* (south end; Richmond Fen; Phragmites Fen); Mud Pond; Albion Wetland.
Cyperus bipartitus Torr. (C. rivularis Kunth)		River Umbrella-sedge	Uncommon
Cyperus diandrus Torr.		Two-stamened Umbrella-sedge	RS (7): Britannia CA; Ottawa Beach; Buchans Bay; Champlain Bridge; Woodridge; Fitzroy Harbour; Petrie Islands.
Cyperus esculentus L. var. leptostachyus Boeckl.		Ground-almond	Uncommon
Cyperus houghtonii Torr.		Houghton's Umbrella-sedge	Provincial Conservation Concern (S3); RS (1*): Constance Bay Sand Hills (common).
Cyperus lupulinus (Spreng.) Marcks ssp. macilentus (Fern.) Marcks (C. filiculmis, auct., non Vahl)		Slender Umbrella-sedge	RS (2*): Constance Bay Shores* (common); Constance Bay Sand Hills.
Cyperus odoratus L. (incl. C. engelmannii Steudel; C. ferruginescens, auct., non Boeck.)		Umbrella-sedge	RS (2): Horseshoe Bay; Petrie Islands.
Cyperus squarrosus L. (C. aristatus Rottb.)		Awned Bulrush	Uncommon
Cyperus strigosus L.		Lean Umbrella-sedge	Uncommon [11]
Dulichium arundinaceum (L.) Britt.		Three-way Sedge	Uncommon
Eleocharis acicularis (L.) R.& S.		Needle Spikerush	Common
Eleocharis compressa Sull. (incl. E. elliptica auct., non Kunth ?)		Flattened Spikerush	Uncommon [11] (taxonomic problem)
Eleocharis elliptica Kunth (E. tenuis (Willd.) Schultes var. borealis (Svenson) Boivin; E. compressa auct., non Sull.?)		Rounded Spike-rush	Uncommon [12] (taxonomic problem)
Eleocharis erythropoda Steudel (E. calva Torr.)		Red-stemmed Spike-rush	Uncommon
Eleocharis intermedia Schultes		Intermediate Spike-rush	RS (3): Britannia Bay; Ottawa Beach; South Gloucester.
Eleocharis obtusa (Willd.) Schultes		Blunt Spike-rush	Common
Eleocharis palustris (L.) R.& S. (incl. E. smallii Britt.)		Marsh Spike-rush	Common
Eriophorum chamissonis C. Meyer		Chamisso's Cotton-grass	RS (1*): Mer Bleue CA* (common).
Eriophorum gracile Koch		Slender Cotton-grass	RS (1*): Marlborough Forest*.
Eriophorum ×porsildii Raymond (E. chamissonis C. Meyer x vaginatum L.)		Porsild's Cotton-grass	RS (Historic): old record, Mer Bleue CA.
Eriophorum tenellum Nutt.		Filiform Cotton-grass	RS (1*): Mer Bleue CA* (common).
Eriophorum vaginatum L. (E. spissum Fern.)		Dense Cotton-grass	RS (3*): Mer Bleue CA* (abundant); Osgoode Swamp* (Springhill Bog, Herberts Corners Bog); Marlborough Forest*.
Eriophorum virginicum L.		Virginia Cotton-grass	RS (6*): Mer Bleue CA* (common); Pine Grove Forest; Stony Swamp CA; Osgoode Swamp* (Springhill Bog; Herberts Corners Bog); Vars East.
Eriophorum viridicarinatum (Engelm.) Fern.		Green Cotton-grass	RS (9*): Mud Pond; Marlborough Forest* (south end; Phragmites Fen; Richmond Fen); Mer Bleue CA; Long Swamp; Corkery Wetland; Albion Wetland; Stony Swamp CA; Osgoode Swamp; Poole Creek Wetland.
Fimbristylis autumnalis (L.) R.& S.		Autumn Fimbristylis	RS (5): Constance Bay Shores; Horseshoe Bay; Fitzroy Provincial Park; Champlain Bridge; Petrie Islands.
Rhynchospora alba (L.) Vahl		White Beak-rush	RS (5*): Marlborough Forest* (Richmond Fen; Phragmites Fen); Long Swamp; Mud Pond; Albion Wetland; Mer Bleue CA* (common).
Schoenoplectus acutus (Muhl. ex Bigel.) Love & Love (Scirpus acutus (Sm.) Hartm.)		Great Bulrush	RS (5*): Marlborough Forest*; Billings Bridge; Champlain Bridge; Vincent Massey Park; Constance Bay Shores.
Schoenoplectus heterochaetus (Chase) Sojak (Scirpus heterochaetus Chase)		Slender Bulrush	Provincial Conservation Concern (S2); RS (Extirpated): old record, Green Island, Rideau River.
Schoenoplectus pungens (Vahl) Palla (Scirpus americanus auct., non Pers.; S. pungens Vahl)		Three-square Bulrush	Common
Schoenoplectus tabernaemontani (Gmel.) Palla (Scirpus validus Vahl)		Strong Bulrush	Common
Scirpus atrocintus Fern.		Black-girdled Bulrush	Uncommon
Scirpus atrovirens Willd.		Blackish Bulrush	Common
Scirpus cyperinus (L.) Kunth		Wool-grass	Common
Scirpus hattorianus Fern. (S. atrovirens Willd., p. pt.)		Mosquito Bulrush	Common
Scirpus microcarpus Presl. (S. rubrotinctus Fern.)		Red-stem Bulrush	Uncommon
Scirpus pedicellatus Fern.		Pedicled Bulrush	RS (4): Albion Wetland; South Gloucester; Shirleys Bay (Watts Creek), Petrie Islands.
Scirpus pendulus Muhl. (S. lineatus auct., non Michx.)		Drooping Bulrush	Uncommon (locally abundant).
Trichophorum alpinum (L.) Pers. (Scirpus hudsonianus (Michx.) Fern.)		Wooly Club-rush	RS (9*): Marlborough Forest* (south end; Richmond Fen; Phragmites Fen); Long Swamp; Mud Pond; Mer Bleue CA; Albion Wetland; Pine Grove Forest; Ont. Land Corp. [plus adventives].
ACORACEAE (Sweet-flag Family)
Acorus americanus Raf. (A. calamus auct., non L.)		Sweet-flag	Uncommon
ARACEAE (Arum Family)
Arisaema triphyllum (L.) Schott		Jack-in-the-pulpit	Common
Calla palustris L.		Wild Calla	Common
Symplocarpus foetidus (L.) Nutt.		Skunk-cabbage	RS (5): Osgoode; Sarsfield; Metcalfe North; MacSkimming Woods; French Hill Swamp (*) - also introduced (South Gloucester).
LEMNACEAE (Duckweed Family)
Lemna minor L.		Small Duckweed	Common
Lemna trisulca L.		Ivy Duckweed	Common
Spirodela polyrhiza (L.) Schleid.		Large Duckweed	RS (7*): Britannia CA; Upper Jock River; Fitzroy Harbour (Carp River); Shirley's Bay* (Watts Creek; Innis Point); Kars (Rideau River); Vincent Massey Park; Memorial Gardens Woods.
Wolffia borealis (Engelm.) Land. (W. punctata Griseb.)		Watermeal	Uncommon [15]
Wolffia columbiana H. Karsten (W. arrhiza auct., non (L.) Horkel)		Watermeal	Uncommon [15]
ERIOCAULACEAE (Pipewort Family)
Eriocaulon aquaticum (Hill) Druce (E. septangulare With.)		Pipewort	Uncommon (locally abundant)
COMMELINACEAE (Spiderwort Family)
Commelina communis L.	#	Dayflower	Rare
PONTEDERIACEAE (Pickerelweed Family)
Pontederia cordata L.		Pickerelweed	Common
Zosterella dubia (Jacq.) Small (Heteranthera dubia (Jacq.) MacM.)		Water Stargrass	Uncommon (locally abundant)
JUNCACEAE (Rush Family)
Juncus alpinoarticulatus Chaix. (J. alpinus Vill., p. pt.)		Alpine Rush	RS (9*): The Burnt Lands; Marlborough Forest*; Britannia Bay; Magladry Road South; South Gloucester; Shirleys Bay; Burritts Rapids; Fernbank Wetland; Champlain Bridge.
Juncus articulatus L.		Jointed Rush	Uncommon [ 12]
Juncus arcticus Willd. var. balticus (Willd.) Traut. (J. balticus Willd.)	[#]	Baltic Rush	Uncommon [native elsewhere in Ontario]
Juncus brevicaudatus (Engelm.) Fern.		Rush	Common
Juncus bufonius L.		Toad Rush	Common
Juncus canadensis J. Gay		Canada Rush	RS (6): Mer Bleue CA; Albion Wetland; Pine Grove Forest; Ont. Land Corp.; South March Highlands; Carp Hills.
Juncus compressus Jacq.	#	Compressed Rush	Uncommon (locally abundant)
Juncus dudleyi Wieg.		Dudley's Rush	Uncommon
Juncus effusus L. (incl. J. pylaei LaHarpe)		Common Rush	Common
Juncus filiformis L.		Thread Rush	Uncommon
Juncus gerardii Lois.	#	Black Rush	Rare (locally abundant)
Juncus greenei Oakes & Tuckerm.		Green's Rush	Provincial Conservation Concern (S3); RS (2): Mer Bleue CA (Borthwick Ridge); near Vars.
Juncus longistylis Torr.	#	Long-styled Rush	Rare [native populations of Provincial Conservation Concern (S3) in Ontario]
Juncus xnodosiformis Fern. (J. articulatus L x nodosus L.)		Hybrid rush	RS (1): Highway 7 at Dwyer Hill Road.
Juncus nodosus L.		Knotted Rush	Uncommon
Juncus pelocarpus E. Meyer		Brown-fruited Rush	Uncommon (locally abundant)
Juncus subtilis E. Meyer		Creeping Rush	Provincial Conservation Concern (S3); RS (2): Andrew Haydon Park; Constance Bay Shore.
Juncus tenuis Willd.		Path Rush	Common
Juncus torreyi Cov.	#	Torrey's Rush	Uncommon [native elsewhere in Ontario]
Juncus vaseyi Engelm.		Vasey’s Rush	RS (1): Carp Hills (Carp Barrens).
Luzula acuminata Raf.		Wood-rush	RS (5*): South March Highlands*; Loggers Way Woods; Carp Hills; French Hill Creek.
Luzula multiflora (Retz.) Lej. (L. campestris auct., non (L.) DC.)		Common Wood-rush	RS (2): Greely W; Carlsbad Springs SW.
Luzula luzuloides (Lam.) Dandy & Wilm.	#	Wood-rush	Rare
Luzula pallidula Kirsch. (L. pallescens (Wahl.) Bess.)	#	Pale Wood-rush	Rare
LILIACEAE (Lily Family)
Allium canadense L.		Canada Onion	RS (2): Petrie Islands; Billings Bridge.
Allium schoenoprasum L. var. schoenoprasum	#	Chives	Rare
Allium schoenoprasum L. var. sibiricum (L.) Hartm.		Wild Chives	RS (1): Shirleys Bay (Innis Point).
Allium tricoccum Ait.		Wild Leek	Uncommon (local and declining)
Asparagus officinalis L.	#	Asparagus	Common
Chionodoxa luciliae Boiss.	#	Chinodoxa	Rare
Clintonia borealis (Ait.) Raf.		Blue-bead Lily	Common
Convallaria majalis L.	#	Lily-of-the-valley	Uncommon (locally abundant invasive)
Erythronium americanum Ker.		Trout-lily	Common
Hemerocallis fulva L.	#	Day Lily	Common
Hemerocallis lilioasphodelus L. (H. flava (L) L.)	#	Lemon Lily	Rare
Lilium lancifolium Thunb. (L. tigrinum Ker.)	#	Tiger Lily	Rare
Lilium philadephicum L.		Wood Lily	Uncommon
Maianthemum canadense Desf. var. canadense		Canada Mayflower	Common
Maianthemum canadense Desf. var. interius Fern.		Western Canada Mayflower	Uncommon (locally abundant)
Maianthemum racemosum (L.) Link (Smilacina racemosa (L.) Desf.)		False Solomon's-seal	Common
Maianthemum stellatum (L.) Link (Smilacina stellata (L.) Desf.)		Starry False Solomon's-seal	Common (local)
Maianthemum trifolium (L.) Sloboda (Smilacina trifolia (L.) Desf.)		Bog False Solomon's-seal	Uncommon (locally abundant)
Medeola virginiana L.		Indian Cucumber	Common (local)
Muscaria botryoides (L.) Mill.	#	Grape-hyacinth	Rare
Ornithogalum umbellatum L.	#	Star-of-Bethlehem	Rare
Polygonatum biflorum (Walt.) Ell. (P. commutatum (Schultes) Dietr.)	#	Two-flowered Solomon's-seal	Rare [native elsewhere in Ontario]
Polygonatum multiflorum (L.) All.	#	European Solomon's-seal	Rare
Polygonatum pubescens (Willd.) Pursh		Solomon's-seal	Common
Scilla sibirica Haw. ex Andrews	#	Scilla	Rare (locally abundant and spreading)
Streptopus amplexifolius (L.) DC.		Twisted-stalk	RS (1): Albion Wetland.
Streptopus lanceolatus (Fern.) Reveal (S. roseus auct., non Michx.)		Rose Twisted-stalk	Uncommon [15]
Trillium cernuum L.		Nodding Trillium	Uncommon
Trillium erectum L.		Red Trillium	Common
Trillium grandiflorum (Michx.) Salisb.		White Trillium	Common
Trillium undulatum Willd.		Painted Trillium	Uncommon (rare W of Rideau River)
Uvularia grandiflora Sm.		Bellwort	Common (local)
Uvularia sessilifolia L.		Small Bellwort	RS (6): Britannia CA [extirpated?]; Baxter CA; Duck Islands; Marlborough Forest; Shirleys Bay (Innis Point); Greens Creek CA.
Zigadenus elegans Pursh ssp. glaucus (Nutt.) Hult. (Z. glaucus Nutt.)		White Camas	RS (1): Albion Wetland.
SMILACACEAE (Briar Family)
Smilax herbacea L.		Greenbriar	Uncommon
AMARYLLIDACEAE (Amaryllis Family)
Galanthus nivalis L.	#	Snowdrops	Rare
Narcissus pseudo-narcissus L.	#	Daffodil	Rare
IRIDACEAE (Iris Family)
Iris germanica L.	#	Fleur-de-lis	Rare
Iris pseudacorus L.	#	Yellow Flag	Rare (locally uncommon and spreading)
Iris versicolor L.		Blue Flag	Common
Sisyrinchium angustifolium Mill.		Blue-eyed grass	RS (6): Crown Point; Shirleys Bay (Innis Point); Morris Island (Lavergne Bay); Champlain Bridge; Britannia CA; Petrie Islands.
Sisyrinchium montanum Greene		Blue-eyed Grass	Common
ORCHIDACEAE (Orchid Family)
Amerorchis rotundifolia (Banks) Hulten		Round-leaved Orchis	RS (Extirpated): old record, Beechwood
Aplectrum hyemale (Muhl. ex Willd.) Nutt.		Putty-root	Provincial Conservation Concern (S2); RS (Extirpated): old record, Beechwood Cemetery
Arethusa bulbosa L.		Dragon's-mouth	RS (3): Long Swamp; Mud Pond; Mer Bleue.
Calopogon tuberosus (L.) Britt.		Grass-pink	RS (5): Phragmites Fen; Long Swamp; Albion Wetland; Mer Bleue CA; Mud Pond.
Calypso bulbosa (L.) Oakes		Calypso	RS (Extirpated): old records, Rockcliffe; 'Ottawa'.
Coeloglossum viride (L.) Hartm.		Frog Orchid	RS (2): South Gloucester; MacSkimming Woods.
Corallorhiza maculata (Raf.) Raf. (s.l.)		Spotted Coralroot	RS (4*): Greens Creek CA; Carp Hills*; Buchans Bay West; Forestgen Park; Stony Swamp CA.
Corallorhiza striata Lindl.		Striped Coralroot	RS (5): Marlborough Forest; Torbolton Ridge Road; Kinburn; Leitrim; Albion Wetland.
Corallorhiza trifida Chat.		Northern Coralroot	Common
Cypripedium acaule Ait.		Pink Lady’s-slipper	Common (local)
Cypripedium arietinum R. Br.		Rams-head Lady’s-slipper	Provincial Conservation Concern (S3); Uncommon (12*): Burnt Lands*;Panmure Alvar; Harwood Plain; Stony Swamp CA; Morris Island; Marlborough Forest* (10 populations); Albion Wetland; South Gloucester; Marathon Forest; Stittsville; Marshall Bay; Torbolton Ridge Road.
Cypripedium parviflorum Salisb. (s.l.) (C. calceolus L.)		Yellow Lady’s-slipper	Uncommon (locally abundant)
Cypripedium reginae Walt.		Queens Lady’s-slipper	Uncommon
Epipactis helleborine (L.) Crantz	#	Helleborine	Common
Galearis spectabilis (L.) Raf.		Showy orchis	RS (9*): Antrim Black Maple ANSI; Carp Hills; South March Highlands*; Kinburn Clay Plain Woods; Pleasant Park Woods ESA; Cardinal Creek; Pana Road; South Gloucester; vicinity of Metcalfe.
Goodyera pubescens (Willd.) R. Br.		Downy Rattlesnake-plantain	RS (3): Carp Hills; Manotick ANSI; South March Highlands.
Goodyera repens (L.) R.Br.		Least Rattlesnake-plantain	RS (4): Stony Swamp CA; Huntley; Ramseyville; Albion Wetland.
Goodyera tesselata Lodd.		Tesselated Rattlesnake-plantain	RS (5*): Stony Swamp CA*; Mud Pond; Mer Bleue CA; Carp Hills; Highway 7 North.
Liparis loeselii (L.) Rich.		Bog Twayblade	Common
Listera australis Lindl.		Southern Twayblade	Provincial Conservation Concern (S3); RS (Extirpated ?): old record, Mer Bleue CA
Malaxis monophyllos (L.) Sw.		White Adder's-mouth	Uncommon [11]
Malaxis unifolia Michx.		Green Adder's-mouth	Common
Platanthera aquilonis Sheviak (P. hyperborea (L.) Lindl.)		Northern Green Orchid	Common
Platanthera blephariglottis (Willd.) Lindl.		White-fringed Bog Orchid	RS (2): Findlay Creek Wetland; Mer Bleue CA.
Platanthera clavellata (Michx.) Luer		Club-spur Orchid	RS (4): Stony Swamp CA; southern Marlborough Forest; Mer Bleue CA; Greely West.
Platanthera dilatata (Pursh) Lindl. ex Beck		White Bog Orchid	RS (2): Phragmites Fen; Long Swamp.
Platanthera flava (L.) Lindl.		Tubercled Orchid	Provincial Conservation Concern (S3); RS (3): Shirleys Bay (Watts Creek); Britannia CA (extirpated?); Constance Creek.
Platanthera grandiflora (Bigel.) Lindl.		Large Purple-fringed Orchid	Provincial Conservation Concern (S2); RS (8): Mer Bleue CA; French Hill Swamp; Vars West; Vars East; MacSkimming Woods; Magladry Road S; Ont. Land Corp.; Buchans Bay West.
Platanthera hookeri (Torr.) Lindl.		Hooker's Orchid	Uncommon [14]
Platanthera huronensis (Nutt.) Lindl. (P. ×media auct., non (Rydb.) Luer)		Fragrant Green Orchid	RS (1): Long Swamp.
Platanthera lacera (Michx.) G. Don		Ragged-fringed Orchid	Uncommon
Platanthera leucophaea (Nutt.) A. Gray		Prairie White-fringed Orchid	Provincial Conservation Concern (S3); RS (1*): Marlborough Forest* (Phragmites Fen; Richmond Fen.)
Platanthera obtusata (Banks ex Pursh) Lindl.		Blunt-leaved Orchid	RS (2): Albion Wetland; Pine Grove Forest.
Platanthera orbiculata (Pursh) Lindl.		Round-leaved Orchid	RS (3): Morris Island; DND Woods; Long Swamp.
Platanthera psycodes (L.) Lindl.		Purple-fringed Orchid	Uncommon
Pogonia ophioglossoides (L.) Juss.		Rose Pogonia	RS (5*): Marlborough Forest* (Phragmites Fen; Richmond Fen); Long Swamp; Albion Wetland; Mer Bleue CA; Osgoode Swamp (Herberts Corners Bog).
Spiranthes casei Catling & Cruise var. casei		Case's Ladies-tresses	RS (3*): Stony Swamp CA* (5 populations); Harwood Plain; South Gloucester.
Spiranthes cernua (L.) Rich.		Nodding Ladies-tresses	Common
Spiranthes lacera (Raf.) Raf.		Slender Ladies-tresses	Common
Spiranthes lucida (H.H.Eat.) Ames		Shining Ladies-tresses	RS (3): Shirleys Bay (Innis Point); Morris Island (Lavergne Bay); Marshall Bay.
Spiranthes romanzoffiana Cham.		Hooded Ladies-tresses	RS (4): Stony Swamp CA (extirpated?); Marlborough Forest (Richmond Fen; Phragmites Fen); Long Swamp; Albion Wetland.
SAURURACEAE (Lizard's-tail Family)
Saururus cernuus L.		Lizard-tail	RS (1*): North Castor River (several popuations).
SALICACEAE (Willow Family)
Populus alba L.	#	White Poplar	Common
Populus balsamifera L.		Balsam Poplar	Common
Populus deltoides Marsh.		Eastern Cottonwood	Common
Populus grandidentata Michx.		Large-toothed Aspen	Common
Populus ×jackii Sarg. (P. balsamifera L.x deltoides Marsh.)		Jack's Poplar	Rare
Populus nigra L.	#	Lombardy Poplar	Rare (commonly cultivated)
Populus tremuloides Michx.		Trembling Aspen	Common
Salix alba L. (incl. S. fragilis auct., non L.)	#	White Willow	Uncommon
Salix amygdaloides Anderss.		Peach-leaved Willow	Uncommon
Salix bebbiana Sarg.		Bebb's Willow	Common
Salix candida Flugge		Hoary Willow	RS (8*): Marlborough Forest*; Long Swamp; Mud Pond; Mer Bleue CA; Albion Wetland; Huntley Wetland; North Goulbourn Wetland, South March Highlands (Huntmar Road).
Salix discolor L.		Pussy Willow	Common
Salix eriocephala Michx. (S. cordata Muhl.)		Stiff Willow	Uncommon
Salix exigua Nutt. ssp. interior (Rowlee) Cronq. (S. interior Rowlee)		Sandbar Willow	Common (local)
Salix humilis Marsh.		Upland Willow	Uncommon
Salix lucida Muhl.		Shining Willow	Common
Salix myrsinifolia Salisb.	#	Dark-leaved Willow	Rare
Salix nigra Marsh.		Black Willow	Uncommon
Salix pedicellaris Pursh		Bog Willow	RS (2*): Marlborough Forest*; Mer Bleue CA*.
Salix pentandra L.	#	Bay-leaved Willow	Rare
Salix petiolaris Sm.		Meadow Willow	Common
Salix purpurea L.	#	Basket Willow	Rare
Salix pyrifolia Anderss.		Balsam Willow	RS (4): Pinhey Forest; Mer Bleue CA; Ont. Land Corp.; Vars East.
Salix ×rubens Schrank (S. alba L. x fragilis L.; S. fragilis, auct., non L.)	#	Crack Willow	Common (invasive)
Salix ×sepulcralis Simonkai (S. alba L. x babylonica L.; S.babylonica, auct., non L.)	#	Weeping Willow	Rare (persisting from cultivation)
Salix serissima (Bailey) Fern.		Autumn Willow	RS (4): Long Swamp; Mud Pond; Albion Wetland; Marlborough Forest.
MYRICACEAE (Bayberry Family)
Comptonia peregrina (L.) Coult.		Sweet Fern	Common (local)
Myrica gale L.		Sweet Gale	Common
JUGLANDACEAE (Hickory Family)
Carya cordiformis (Wang) K. Koch		Bitternut Hickory	Common (local)
Juglans cinerea L.		Butternut	Provincial Conservation Concern (S3?); Common [severe population decline anticipated due to rapid spread of disease]
Juglans nigra L.	#	Black Walnut	Rare [native elsewhere in Ontario]
BETULACEAE (Birch Family)
Alnus incana (L.) Moench ssp. rugosa (Du Roi) Clausen (A. rugosa (Du Roi) Spreng.)		Speckled Alder	Common
Betula alba L.	#	European White Birch	Rare
Betula alleghaniensis Britt.		Yellow Birch	Common
Betula papyrifera Marsh.		White Birch	Common
Betula pendula Roth	#	European Birch	Rare
Betula pendula Roth x populifolia Marsh.	#	hybrid Birch	Rare
Betula populifolia Marsh.		Gray Birch	Common (local)
Betula pumila L. (B. glandulosa Michx. var. glandulifera (Regel) Gl.)		Dwarf Birch	RS (1*): Marlborough Forest* (locally common).
Betula ×sandbergii Britt. (B. papyrifera Marsh. x pumila L.)		Sandberg's Birch	RS (3*): Osgoode Swamp (Springhill Bog* - common); South Gloucester; Albion Wetland.
Carpinus caroliniana Walt.		Blue-beech	Common (local)
Corylus cornuta Marsh.		Beaked Hazel	Common
Ostrya virginiana (Mill.) K. Koch		Ironwood	Common
FAGACEAE (Oak Family)
Fagus grandifolia Ehrh.		American Beech	Common
Quercus alba L.		White Oak	RS (1): Britannia CA [plus adventives].
Quercus macrocarpa Michx.		Bur Oak	Common
Quercus rubra L.		Red Oak	Common
ULMACEAE (Elm Family)
Celtis occidentalis L.		Hackberry	Uncommon [also planted]
Ulmus americana L.		White Elm	Common
Ulmus procera Salisb.	#	English Elm	Uncommon
Ulmus pumila L.	#	Chinese Elm	Rare
Ulmus rubra Muhl.		Red Elm	Uncommon
Ulmus thomasii Sarg.		Rock Elm	Uncommon (locally abundant)
MORACEAE (Mulberry Family)
Morus alba L.	#	White Mulberry	Rare
CANNABACEAE (Hemp Family)
Cannabis sativa L.	#	Cannabis	Rare
Humulus japonicus Sieb. & Zucc.	#	Hops	Rare
Humulus lupulus L.	#	Hops	Rare
URTICACEAE (Nettle Family)
Boehmeria cylindrica (L.) Sw.		False Nettle	Uncommon
Laportea canadensis (L.) Wedd.		Canada Wood-nettle	Common
Pilea fontana (Lunnell) Rydb.		Clearweed	RS (1): Shirleys Bay (Shirleys Brook)
Pilea pumila (L.) A. Gray		Clearweed	Uncommon
Urtica dioica L. ssp. dioica	#	Stinging Nettle	Rare
Urtica dioica L. ssp. gracilis (Ait.) Selander		Slender Stinging Nettle	Common
Urtica urens L.	#	Dog Nettle	Rare
LORANTHACEAE (Mistletoe Family)
Arceuthobium pusillum Peck		Dwarf Mistletoe	RS (1): Marlborough Forest.
SANTALACEAE (Sandalwood Family)
Comandra umbellata (L.) Nutt. (incl. C. richardsiana Fern.)		Bastard -toadflax	Uncommon (locally abundant)
ARISTOLOCHIACEAE (Ginger Family)
Asarum canadense L.		Wild Ginger	Common
POLYGONACEAE (Knotweed Family)
Fagopyrum esculentum Moench	#	Buckwheat	Rare
Fallopia cilinodis (Michx.) Holub (Polygonum cilinode Michx.)		Bindweed	Common
Fallopia convolvulus (L.) A. Love (Polygonum convolvulus L.)	#	Black Bindweed	Uncommon
Fallopia japonica (Houttuyn) DC. (Polygonum cuspidatum Sieb.& Zucc. )	#	Japanese Knotweed	Uncommon
Fallopia sachalinensis (F. Schmidt) Dcne (Polygonum sachalinense F. Schmidt)	#	Giant Knotweed	Rare
Fallopia scandens (L.) Holub (Polygonum scandens L.)		False Buckwheat	Uncommon
Persicaria amphibia (L.) S. F. Gray (Polygonum amphibium L.)		Water Smartweed	Common
Persicaria arifolia (L.) Harolds. (Polygonum arifolium L.)		Tear-thumb	Provincial Conservation Concern (S3); RS (6): Mer Bleue CA; Baxter CA; MacSkimming Woods; Queenswood Forest; French Hill Swamp; Vars East.
Persicaria hydropiper (L.) Opiz (Polygonum hydropiper L.)		Water-pepper	Common
Persicaria hydropiperoides (Michx.) J.K. Small (Polygonum hydropiperoides Michx.)		False Water-pepper	RS (9): Stony Swamp CA; Pinhey Forest; Ont. Land Corp.; South March Highlands; Champlain Bridge; Vars West; Queenswood Heights Wetland; Duck Islands; Marlborough Forest (Brassils Creek).
Persicaria lapathifolia L. (Polygonum lapathifolium (L.) S. F. Gray)		Dock Knotweed	Common
Persicaria maculosa S.F. Gray (Polygonum persicaria L.)	#	Lady-thumb	Common
Persicaria orientalis (L.) Assenov (Polygonum orientale L.)	#	Prince's-feather	Rare
Persicaria pensylvanica (L.) J. K. Small (Polygonum pensylvanicum L.)		Pennsylvania Knotweed	Common
Persicaria punctata (Ell.) J. K. Small (Polygonum punctatum Ell.)		Water Knotweed	RS (9*): Stony Swamp CA; Constance Creek; Pine Grove Forest; Mer Bleue CA *; Vincent Massey Park; Billings Bridge; Experimental Farm, Ottawa; Magladry Road S.; South March Highlands
Persicaria sagittata (L.) Grosse (Polygonum saggitatum L.)		Arrow-vine	Uncommon
Persicaria tomentosa (Schrank) Bickn. (Polygonum lapathifolium L. ssp. tomentosum (Schrank) Danser; P.scabrum Moench)	#	Knotweed	Uncommon
Polygonella articulata (L.) Meisn.		Jointweed	Provincial Conservation Concern (S3); RS (1*): Constance Bay Sand Hills* (common) [plus adventives]
Polygonum achoreum Blake		Leathery Knotweed	Common
Polygonum aviculare L. ssp. aviculare (P. monspeliense Pers.)	#	Knotweed	Common
Polygonum aviculare L. ssp. buxiforme (Small) Costea & Tardif (P. buxiforme Small)	#	Knotweed	Rare [native elsewhere in Ontario]
Polygonum aviculare L. ssp. depressum (Meissn.) Arcang. (P. arenastrum Boreau)	#	Knotweed	Common
Polygonum aviculare L. ssp. neglectum (Bess.) Arcang. (P. neglectum Bess.)		Overlooked Knotweed	RS (2): Highway 7 west of Stittsville; Manotick (taxonomic problem).
Rheum rhabarbarum L.	#	Rhubarb	Rare
Rumex acetosella L.	#	Sheep-sorrel	Common
Rumex crispus L.	#	Curled Dock	Common
Rumex fennicus Murb.	#	Field Dock	Rare
Rumex longifolius DC. (R. domesticus Hartm.)	#	Long-leaved Dock	Rare
Rumex maritimus L.	#	Golden Dock	Rare [native elsewhere in Ontario]
Rumex obtusifolius L.	#	Bitter Dock	Uncommon
Rumex orbiculatus L. (R. britannica L.)		Great Water Dock	Uncommon
Rumex patientia L.	#	Patience Dock	Rare
Rumex salicifolius Weinm. (R. triangulivalvis (Dans.) Rech.f.; R. mexicanus Meiss.)	[#]	Willow Dock	RS (4): Airbase Woods; Britannia CA; Shirleys Bay; Crown Point; (plus adventives).
Rumex verticillatus L.		Whorled Dock	Common
CHENOPODIACEAE (Goosefoot Family)
Atriplex micrantha Ledeb. (A. heterosperma Bunge)	#	Russian Orache	Rare
Atriplex patula L.	#	Spearscale	Common
Atriplex prostrata Boucher ex DC. (A. hastata, auct.; A. triangularis Willd.)	#	Orache	Common
Axyris amaranthoides L.	#	Russian Pigweed	Rare
Chenopodium album L.	#	Lamb's-quarters	Common
Chenopodium bonus-henricus L.	#	Good-King-Henry	Rare
Chenopodium capitatum (L.) Aschers		Strawberry-blight	RS (5): Albion Wetland; Chaudiere Rapids; South Gloucester; Cumberland; South March Highlands (extirpated).
Chenopodium glaucum L.	#	Common Goosefoot	Common
Chenopodium polyspermum L. var. acutifolium (Sm.) Gaud.	#	Many-seeded Goosefoot	Rare
Chenopodium simplex (Torr.) Raf. (C. gigantospermum Aellen; C. hybridum auct., non L.)		Maple-leaved Goosefoot	Common
Chenopodium strictum Roth (C. glaucophyllum Aellen)	#	Goosefoot	Common
Chenopodium urbicum L.	#	City Goosefoot	Rare
Cycloloma atriplicifolium (Spreng.) Coult.	#	Wing Pigweed	Rare
Dysphania botrys (L.) Mosyakin & Clem. (Chenopodium botrys L.)	#	Jerusalem-oak	Rare (old records)
Kochia scoparia (L.) Roth	#	Summer Cypress	Uncommon
Polycnemum majus A. Br. (P. arvense L. var. simplex Wallr.)	#	Polycnemum	Rare
Salsola collina Pallas	#	Russian-thistle	Uncommon (spreading rapidly)
Salsola tragus L. (S. pestifer A. Nels.; S. kali L. var. tenuifolia Tausch)	#	Russian-thistle	Uncommon
AMARANTHACEAE (Amaranth Family)
Amaranthus albus L.	#	Tumbleweed	Uncommon
Amaranthus blitoides S. Wats. (A. graecizans, auct.)	#	Tumbleweed	Uncommon
Amaranthus cruentus L.	#	Purple Amaranth	Rare
Amaranthus hybridus L.	#	Wild-beet	Rare
Amaranthus powellii Wats.	#	Powell's Pigweed	Rare
Amaranthus retroflexus L.	#	Redroot	Common
Amaranthus tuberculatus (Moq. ex DC.) Sauer (Acnida tuberculata Moq.)		Water-hemp	RS (2): The Burnt Lands; Marlborough Forest (Richmond Fen).
NYCTAGINACEAE (Four-o'clock Family)
Mirabilis albida (Walt.) Heim. (M. hirsuta (Pursh) MacM.)	#	Hairy Umbrellawort	Rare
Mirabilis nyctaginea (Michx.) MacM.	#	Four-o'clock	Rare (locally common)
MOLLUGINACEAE (Carpetweed Family)
Mollugo verticillata L.	#	Carpetweed	Rare
PORTULACACEAE (Purslane Family)
Claytonia caroliniana Michx.		Spring-beauty	Common
Claytonia virginica L.		Virginia Spring-beauty	RS (7): North Gower; Carsonby; Kinburn Clay Plain Woods; Third Line West Carleton Woodlot; Antrim Woodlot; Carp; South March Highlands (Trillium Woods) - extirpated?
Portulaca oleracea L.	#	Purslane	Common
CARYOPHYLLACEAE (Pink Family)
Agrostemma githago L.	#	Corn-cockle	Rare (old records)
Arenaria serpyllifolia L.	#	Thyme-leaved Sandwort	Uncommon (locally abundant)
Cerastium arvense L.		Meadow Chickweed	Uncommon
Cerastium brachypodum (Engelm. ex Gray) Robins. (C. nutans Raf. var. brachypodum Engel. e Gray)		Nodding Chickweed	RS (1): The Burnt Lands.
Cerastium fontanum Baumg.	#	Mouse-ear Chickweed	Common
Cerastium semidecandrum L.	#	Little mouse-ear Chickweed	Rare
Cerastium tomentosum L.	#	Snow-on-the-ground	Rare
Dianthus armeria L.	#	Deptford Pink	Common
Dianthus deltoides L.	#	Maiden Pink	Rare
Gypsophila muralis L.	#	Baby's-breath	Rare
Lychnis coronaria (L.) Desr.	#	Mullein Pink	Rare
Lychnis flos-cuculi L.	#	Ragged-robin	Rare
Minuartia michauxii (Fenzl) Farw. (Arenaria stricta Michx.)		Rock Sandwort	RS (2*): The Burnt Lands* (common); Panmure Alvar.
Moehringia lateriflora (L.) Fenzl (Arenaria lateriflora L.)		Grove Sandwort	RS (10*): Shirleys Bay (Watts Creek); Crystal Bay (Beatty Point); Britannia CA; Champlain Bridge; French Hill Creek; Stony Swamp CA; Greens Creek CA*; Long Swamp; Carlsbad Springs SW; South Gloucester.
Sagina japonica (Sw.) Ohwi	#	Japanese Pearlwort	Rare (old records)
Sagina procumbens L.	#	Pearlwort	Rare
Saponaria officinalis L.	#	Bouncing-bet	Common
Silene antirrhina L.		Sleepy Catch-fly	Uncommon
Silene armeria L.	#	Sweet-william	Rare
Silene dioica (L.) Clairv.	#	Red Campion	Rare (old records)
Silene latifolia Poir. (S. alba (Mill.) Krause)	#	White Campion	Uncommon
Silene noctiflora L.	#	Night Catch-fly	Uncommon
Silene vulgaris (Moench) Garcke (S. cucubalus Wibel)	#	Bladder Campion	Common
Spergula arvensis L.	#	Spurry	Rare
Spergularia media (L.) Presl. (S. marginata (DC.) Kittel)	#	Greater Sea-spurry	Rare (locally abundant)
Spergularia rubra (L.) J. & C. Presl.	#	Sand Spurry	Rare
Spergularia salina J. & K. Presl (S. marina (L.) Gris.)	#	Lesser Sea-spurry	Rare (locally abundant)
Stellaria aquatica (L.) Scop	#	Giant Chickweed	Rare (uncommon along rivers)
Stellaria borealis Bigel (S. calycantha, auct.)		Northern Stitchwort	RS (2): Albion Wetland; Marlborough Forest.
Stellaria graminea L.	#	Lesser Stitchwort	Common
Stellaria longifolia Muhl.		Long-leaved Chickweed	RS (4): Mer Bleue CA; Albion Weltand; South Gloucester, South March Highlands.
Stellaria media (L.) Cyrillo	#	Common Chickweed	Uncommon
Vaccaria pyramidata Medic.	#	Cow-cockle	Rare
CERATOPHYLLACEAE (Hornwort Family)
Ceratophyllum demersum L.		Coon-tail	Common
Ceratophyllum echinatum A. Gray		Spiny Coon-tail	Provincial Conservation Concern (S3); RS (3): Highway 7 North (Rothbourne Swamp); Albion Wetland; South March Highlands.
NYMPHAEACEAE (Waterlily Family)
Nuphar microphylla (Pers.) Fern. (N. pumilum, auct.)		Small Pond-lily	RS (2): Britannia Bay; Britannia CA.
Nuphar rubrodisca (Morong) Fern. (N. lutea (L.) Sm. ssp. rubrodisca (Morong) Hellquist & Wiersema)		Red-disk Water-lily	RS (3): Shirley's Bay; Stillwater Creek; Upper Jock River.
Nuphar variegata Dur. ex Clint. (N. lutea (L.) Sm. ssp. variegata (Dur.) Beal)		Yellow Water-lily	Common
Nymphaea odorata Ait. ssp. odorata		White Water-lily	Common
Nymphaea odorata Ait. ssp. tuberosa (Paine) Wiersema & Hellquist (N. tuberosa Paine)		Large White Water-lily	Uncommon
CABOMBACEAE (Water-shield Family)
Brasenia schreberi Gmel.		Water-shield	RS (9): South March Highlands; Carp Hills; Constance Bay Shores; Britannia CA; Petrie Islands; Queenswood Heights Wetland; Vars East; Ont. Land Corp.; Duck Islands.
RANUNCULACEAE (Crowfoot Family)
Actaea pachypoda Ell.		White Baneberry	Common
Actaea rubra (Ait.) Willd.		Red Baneberry	Common
Anemone acutiloba (DC) Lawson (Hepatica acutiloba DC)		Sharp-lobed Hepatica	Common
Anemone americana (DC) Hara (Hepatica americana (DC) Ker)		Round-lobed Hepatica	Common
Anemone canadensis L.		Canada Anemone	Common
Anemone cylindrica A. Gray		Thimbleweed	Common
Anemone virginiana L. (s.l.) (incl. A. riparia auct., non Fern.; A. virginica L. var. cylindroidea Boivin) )		Tall Anemone	Common
Aquilegia canadensis L.		Canada Columbine	Common
Aquilegia vulgaris L. (s.l.)	#	Garden Columbine	Rare
Caltha palustris L.		Marsh-marigold	Common
Clematis orientalis L.	#	Clematis	Rare
Clematis recta L.	#	Clematis	Rare
Clematis virginiana L.		Virgin's-bower	Common
Clematis viticella L.	#	Clematis	Rare
Coptis trifolia (L.) Salisb.		Goldthread	Common
Ranunculus abortivus L.		Small-flowered Buttercup	Common
Ranunculus acris L.	#	Common Buttercup	Common
Ranunculus aquatilis L. var. diffusus With. (R. longirostris (God.) Schultz; R. trichophyllus Chaix)		Water Crowfoot	Uncommon
Ranunculus bulbosa L.	#	Bulbous Buttercup	Extirpated: old record, Britannia
Ranunculus cymbalaria Pursh		Seaside Buttercup	RS (1): Carlsbad Springs East (possibly adventive)
Ranunculus ficaria L.	#	Lesser-celandine	Rare
Ranunculus flabellaris Raf.		Yellow Water-crowfoot	Uncommon (locally abundant) [11]
Ranunculus flammula L. (R. reptans L.)		Spearwort	Uncommon (locally abundant)
Ranunculus hispidus Michx. var. caricetorum (Greene) Duncan (R. septentionalis Poir.)		Swamp Buttercup	RS (10): Kinburn Clay Plain Woods; Airbase Woods; Vincent Massey Park; Beechwood Cemetery; Elmhurst Street Woods; Rockcliffe Park ESA; Cranberry Creek; Marlborough Forest; Petrie Islands; Antrim Woodlot. + Britannia CA [extirpated].
Ranunculus pensylvanicus L.f.		Hairy Buttercup	RS (4): Mer Bleue*; Albion Wetland; Stittsville West; Petrie Islands
Ranunculus recurvatus Poir.		Hooked Buttercup	Uncommon
Ranunculus repens L.	#	Creeping Buttercup	Rare
Ranunculus sceleratus L. var. sceleratus	#	Celery-leaved Crowfoot	Uncommon
Thalictrum confine Fern. (T. venulosum Trel. var. confine (Fern.) Boivin )		Western Meadow-rue	RS (4*): Constance Bay Sand Hills* (locally common); Morris Island* (Lavergne Bay; Mississippi Snye); Shirleys Bay (Innis Point); Fitzroy Provincial Park.
Thalictrum dioicum L.		Early Meadow-rue	Common
Thalictrum pubescens Pursh (T. polygamum Muhl.)		Tall Meadow-rue	Common
PAEONIACEAE (Paeonia Family)
Paeonia lactiflora Pallas	#	Chinese Peony	Rare
BERBERIDACEAE (Barberry Family)
Berberis thunbergii DC.	#	Japanese Barberry	Rare
Berberis vulgaris L.	#	European Barberry	Uncommon
Caulophyllum giganteum (Farw.) Loc. & Black. (C. thalictroides var. giganteum Farw.)		Blue-cohosh	Common
Caulophyllum thalictroides (L.) Michx.		Southern Blue-cohosh	RS (1): Antrim Woodlot
MENISPERMACEAE (Moonseed Family)
Menispermum canadense L.		Moonseed	Uncommon [19]
PAPAVERACEAE (Poppy Family)
Chelidonium majus L.	#	Celandine	Uncommon (locally abundant)
Papaver somniferum L.	#	Opium Poppy	Rare (old records)
Sanguinaria canadensis L.		Bloodroot	Common
FUMARIACEAE (Fumitory Family)
Adlumia fungosa (Ait.) Greene		Alleghany-vine	RS (3): Britannia CA; Harwood Plain; Morris Island (Lavergne Point).
Corydalis aurea Willd.		Golden Corydalis	RS (5*): Britannia CA; Shirleys Bay (Innis Point); Chaudiere Rapids; Montfort Woods (adventive?); Burnt Lands*.
Corydalis sempervirens (L.) Pers.		Rock Harlequin	Common
Dicentra canadensis (Goldie) Walp.		Squirrel-corn	Common
Dicentra cucullaria (L.) Bernh.		Dutchman's-breeches	Common
Fumaria officinalis L.	#	Fumitory	Rare (old records)
CAPPARIDACEAE (Caper Family)
Cleome spinosa L.	#	Spider-flower	Rare (short-lived escape from cultivation)
BRASSICACEAE (Mustard Family)
Alliaria petiolata (Bieb.) Cov. & Grande (Alliaria officinalis Andz.)	#	Garlic-mustard	Common (aggressively spreading invasive)
Alyssum alyssoides L.	#	Yellow Alyssum	Rare (old records)
Arabidopsis thaliana (L.) L.	#	Mouse-ear Cress	Rare
Arabis divaricarpa Nels.		Spreading Rock-cress	Uncommon
Arabis drummondii A. Gray		Drummond's Rock-cress	RS (Historic): old record, 'Ottawa'.
Arabis glabra (L.) Bernh.		Smooth Rock-cress	Common
Arabis hirsuta (L.) Scop var. pycnocarpa (Hopkins) Rollins (A. pycnocarpa Hopkins)		Hairy Rock-cress	RS (8*): The Burnt Lands; Hunt Club Creek; Stony Swamp CA*; Stittsville; Old Stittsville; Torbolton Ridge Road; Grainger Side Road Alvar; Burritts Rapids.
Armoracia rusticana Gaertn., Mey. & Scherb.	#	Horse-radish	Rare
Barbarea vulgaris R. Br.	#	Yellow-rocket	Common
Berteroa incana (L.) DC.	#	Hoary-alyssum	Common
Brassica juncea (L.) Czernj. (Sinapis juncea L.)	#	Indian Mustard	Rare
Brassica napus L.	#	Rutabaga	Rare (old records)
Brassica nigra (L.) W. Koch (Sinapis nigra L.)	#	Black Mustard	Rare (old records)
Brassica rapa L. (B. campestris L.)	#	Field Mustard	Rare
Camelina microcarpa Andrz.	#	False-flax	Rare
Camelina sativa (L.) Crantz	#	Dutch-flax	Rare (old records)
Capsella bursa-pastoris (L.) Medic	#	Shepherd's-purse	Common
Cardamine bulbosa (Schreb.) BSP.		Spring Cress	RS (1): Antrim Woodlot
Cardamine concatenata (Michx.) Schwein. (Dentaria laciniata Muhl.)		Cut-leaved Toothwort	RS (9*): Antrim Black Maple ANSI*; Antrin Woodlot; Stony Swamp CA*; South March Highlands; Montfort Woods; Airbase Woods; McCarthy Road ESA; South Gloucester); Vanier Woodlot; (extirpated, Nivens Woods, 1972).
Cardamine diphylla (Michx.) Wood (Dentaria diphylla Michx.)		Toothwort	Uncommon
Cardamine flexuosa With.	#	Wood Bitter-cress	Rare
Cardamine ×maxima (Nutt.) Wood (C. concatenata (Michx.) Schw. x diphylla (Michx.) Wood)		Large Toothwort	RS (Historic): old record, Rockcliffe.
Cardamine parviflora L. var. arenicola (Britt.) Schulz		Bitter-cress	RS (2): Stony Swamp CA; Constance Bay Sand Hills.
Cardamine pensylvanica Muhl.		Pennsylvania Bitter-cress	Common
Cardamine pratensis L.		Mayflower	RS (4): Stony Swamp CA; Marlborough Forest (Phragmites Fen); Ont. Land Corp.; Pine Grove Forest.
Cardaria draba (L.) Desv.	#	Hoary Cress	Rare
Conringia orientalis (L.) Dum.	#	Hare's-ear Mustard	Rare
Descurania pinnata (Walt.) Britt. ssp. brachycarpa (Richards.) Delt.	#	Tansy Mustard	Rare
Descurainia sophia (L.) Webb	#	Tansy Mustard	Uncommon
Diplotaxis tenuifolia (L.) DC.	#	Wall Rocket	Rare
Draba nemorosa L.	#	Wood Winter-cress	Rare (locally abundant)
Draba verna L.	#	Spring Winter-cress	Rare
Eruca vesicaria (L.) Cav. ssp. sativa (Mill.) Thellung (E. sativa (Mill.) Thellung)	#	Rocket Salad	Rare (old records)
Erucastrum gallicum (Willd.) Schultz	#	Dog Mustard	Rare
Erysimum asperum (Nutt.) DC.	#	Prairie Rocket	Rare (old records)
Erysimum cheiranthoides L.	#	Wormseed Mustard	Common
Erysimum hieraciifolium L.	#	Tall Wormseed Mustard	Uncommon
Erysimum inconspicuum (Wats.) MacM.		Prairie Rocket	Rare (old records)
Hesperis matronalis L.	#	Dame's Rocket	Uncommon (spreading invasive)
Lepidium campestre (L.) R. Br.	#	Cow Cress	Uncommon
Lepidium densiflorum Schrad.	#	Pepper-grass	Common
Lepidium sativum L.	#	Garden Cress	Rare (old record)
Lepidium virginicum L.	#	Poor-man's Pepper	Rare [native elsewhere in Ontario]
Neobeckia aquatica (Eat.) Greene (Armoracia lacustris (A. Gray) Al-Shehba & Bates; A. aquatica (Eat.) Wieg.)		Lake Cress	Provincial Conservation Concern (S3); RS (2): Marlborough Forest (Jock River) ; Britannia CA.
Neslia paniculata (L.) Desv.	#	Ball Mustard	Rare
Rapistrum rugosum (L.) All.	#	Rape	Rare (old records)
Rhaphanus raphanistrum L.	#	Wild Radish	Rare (old records)
Rorripa nasturtium-aquaticum (L.) Hayck (Nasturtium officinale R. Br.)	#	Watercress	Uncommon
Rorippa palustris (L.) Bess. ssp. fernaldiana (Butt. & Abbe) Jonsell		Yellow Cress	Common
Rorippa palustris (L.) Bess. ssp. hispida (Desv.) Jonsell		Hairy Yellow Cress	Common
Rorippa sylvestris (L.) Bess.	#	Wood Watercress	Uncommon
Sinapis alba L. (Brassica alba (L.) Rabenh.)	#	White Mustard	Rare
Sinapis arvensis L. (Brassica kaber (DC.) Wheeler)	#	Wild Mustard	Common
Sisymbrium altissimum L.	#	Tumble Mustard	Common
Sisymbrium loeselii L.	#	Tall Hedge-mustard	Rare
Sisymbrium officinale (L.) Scop.	#	Hedge Mustard	Uncommon
Thlaspi arvense L.	#	Field Penny-cress	Common
SARACENIACEAE (Pitcher-plant Family)
Sarracenia purpurea L.		Pitcher-plant	RS (5*): Mer Bleue* (abundant); Albion Wetland; Marlborough Forest* (locally common); Huntley Wetland; Osgoode Swamp* (Herberts Corners Bog).
DROSERACEAE (Sundew Family)
Drosera intermedia Hayne		Intermediate Sundew	RS (2): Mer Bleue CA; Ont. Land Corp.
Drosera rotundifolia L.		Round-leaved Sundew	Uncommon (locally abundant).
PODOSTEMACEAE (River-weed Family)
Podostemum ceratophyllum Michx.		Riverweed	Provincial Conservation Concern (S2); RS (2): Britannia CA; Champlain Bridge.
CRASSULACEAE (Stonecrop Family)
Penthorum sedoides L.		Ditch Stonecrop	Uncommon
Sedum acre L.	#	Yellow Stonecrop	Common
Sedum aizoon L.	#	Stonecrop	Rare
Sedum hispanicum L.	#	Spanish Stonecrop	Rare (locally abundant)
Sedum sarmentosum Bunge	#	Stringy Stonecrop	Rare
Sedum sexangulare L.	#	Stonecrop	Rare
Sedum spurium Bieb.	#	Stonecrop	Rare
Sedum telephium L.	#	Live-forever	Uncommon
SAXIFRAGACEAE (Saxifrage Family)
Chrysosplenium americanum Schwein.		Golden Saxifrage	RS (9): Marlborough Forest; Stony Swamp CA; Queenswood Forest; Forestglen Park; Chapel Hill Forest; Mer Bleue CA; Old Dump Woods; Ont. Land Corp.; Albion Wetland
Mitella diphylla L.		Mitrewort	Common
Mitella nuda L.		Naked Mitrewort	Common
Philadelphus coronarius L.	#	Mock-orange	Rare
Saxifraga virginiensis Michx.		Early Saxifrage	Common
Tiarella cordifolia L.		Foamflower	Common
GROSSULARIACAEAE (Currant Family)
Ribes americanum Mill.		Black Currant	Common
Ribes cynosbati L.		Wild Gooseberry	Common
Ribes glandulosum Grauer		Skunk Currant	Common
Ribes hirtellum Michx.		Hairy Gooseberry	Uncommon
Ribes lacustre (Pers.) Poir.		Swamp Currant	Uncommon
Ribes odoratum Wendl. f.	#	Golden Currant	Rare (old records)
Ribes rubrum L. (R. sativum Syme)	#	Red Currant	Rare
Ribes triste Pall.		Wild Currant	Uncommon
HAMAMELIDACEAE (Witch-hazel Family)
Hamamelis virginiana L.		Witch-hazel	RS (1): Greens Creek CA.
ROSACEAE (Rose Family)
Agrimonia gryposepala Wallr.		Hooked Agrimony	Common
Agrimonia striata Michx.		Grooved Agrimony	RS (2): Stony Swamp CA; South Gloucester.
Amelanchier alnifolia Nutt. var. compacta (Neilson) McKay (A. canadensis, auct., in part; A. humilis Wieg., in part)		Saskatoon	RS (2*): The Burnt Lands*; Highway 7 west of Stittsville.
Amelanchier arborea (Michx. f.) Fern. ssp. arborea		Serviceberry	Uncommon [13]
Amelanchier arborea (Michx. f.) Fern. ssp. laevis (Wieg.) McKay (A. laevis Wieg.)		Shadbush	Common
Amelanchier bartramiana (Tausch) Roemer		Mountain Juneberry	RS (1): Ramsayville.
Amelanchier sanguinea (Pursh) DC.		Round-leaf Serviceberry	Uncommon
Amelanchier sanguinea (Pursh) DC. x spicata K. Koch var. spicata		hybrid Serviceberry	Rare
Amelanchier spicata K. Koch var. spicata		Shadbush	Uncommon
Amelanchier spicata K. Koch var. stolonifera (Wieg.) Cinq-Mars (A. stolonifera Wieg.)		Shadbush	Uncommon
Argentina anserina (L.) Rydb. (Potentilla anserina L.)	[#]	Silverweed	Uncommon along rivers [plus adventives]
Comarum palustre L. (Potentilla palustris (L.) Scop.)		Marsh Cinquefoil	RS (2*): Marlborough Forest*; Britannia CA.
Cotoneaster lucidus Schlecht.	#	Cotoneaster	Rare
Crataegus apiomorpha Sarg.		Hawthorn	RS (Historic): old record, “Ottawa”
Crataegus chrysocarpa Ashe (incl. C. aboriginum Sarg)		Hawthorn	Common
Crataegus chrysocarpa Ashe var. phoenicea Palmer		Hawthorn	Uncommon
Crataegus flabellata (Spach) Kirchn.		Hawthorn	Common
Crataegus holmesiana Ashe		Hawthorn	RS (1): Pinecrest Creek.
Crataegus intricata Lange		Hawthorn	RS (Historic): old record, South March
Crataegus irrasa Sarg.		Hawthorn	RS (Historic): old record, “Ottawa”
Crataegus macrantha Lodd.		Hawthorn	Uncommon
Crataegus macrosperma Ashe		Hawthorn	Uncommon
Crataegus monogyna Jacq.	#	European Hawthorn	Rare
Crataegus pringlei Sarg.		Hawthorn	Uncommon
Crataegus punctata Jacq.		Hawthorn	Uncommon
Crataegus scabrida Sarg.		Hawthorn	Uncommon
Crataegus submollis Sarg.		Velvety Hawthorn	Common
Crataegus succulenta Link		Succulent Hawthorn	RS (3): Fitzroy Harbour; Mud Pond; Stillwater Creek.
Daisiphora floribunda (Pursh) Kartesz (Potentilla fruticosa auct., non L.)		Shrubby Cinquefoil	RS (8*): Shirleys Bay (Innis Point); The Burnt Lands; Mud Pond; Morris Island (Lavergne Bay); Marlborough Forest*; North Goubourn wetland complex, Stittsville; Rothborne Road; Highway 7 at Dwyer Hill Road.
Dalibarda repens L.		Dewdrop	RS (8): Vars West; Edwards; French Hill Swamp; Vars East; Albion Wetland; Ont. Land Corp.; Stittsville; Carlsbad Springs Southwest.
Filipendula ulmaria (L.) Maxm.	#	Filipendula	Rare
Fragaria vesca L.		Woodland Strawberry	Uncommon
Fragaria virginiana Duchesne		Common Strawberry	Common
Geum aleppicum Jacq.		Yellow Avens	Common
Geum canadense Jacq.		White Avens	Common
Geum laciniatum Murr.		Slashed Avens	Uncommon
Geum rivale L.		Water Avens	RS (2*): Albion Wetland*; Marlborough Forest.
Geum urbanum L.	#	Town Avens	Uncommon (locally abundant invasive)
Malus baccata (L.) Borkh.	#	Siberian Crab Apple	Rare
Malus baccata (L.) Borkh. x sylvestris L.	#	hybrid Crab Apple	Rare
Malus baccata (L.) Borkh. x Malus sp.	#	hybrid Crab Apple	Rare
Malus floribunda Sieb.	#	Flowering Crab Apple	Rare
Malus sylvestris (L.) Mill. (Pyrus pumila L.)	#	Domestic Apple	Common
Photinia melanocarpa (Michx.) Robertson & Phipps (Aronia melanocarpa (Michx.) Ell.)		Black Chokeberry	Uncommon
Physocarpus opulifolius (L.) Maxim.	[#]	Ninebark	Uncommon [plus adventives]
Potentilla argentea L.	#	Silvery Cinquefoil	Common
Potentilla arguta Pursh		Tall Cinquefoil	RS (5*): Marlborough Forest* (9 or more populations); Dwyer Hill; Greely W; South Gloucester; North Goulbourn Wetland Complex, Stittsville.
Potentilla gracilis Dougl.	#	Slender Cinquefoil	Rare (old records); [native populations of Provincial Conservation Concern (S2) in Ontario]
Potentilla inclinata Vill. (P. intermedia, auct.)	#	Downy Cinquefoil	Uncommon
Potentilla norvegica L. (incl. P. norvegica L. ssp. monspeliensis (L.) Asch. & Grabn.)	[#]	Rough Cinquefoil	Common
Potentilla recta L.	#	Rough-fruited Cinquefoil	Common
Potentilla simplex Michx.		Common Cinquefoil	Uncommon (locally abundant)
Prunus americana Marsh.	[#]	American Plum	RS (1): Chaudiere Rapids [plus adventives]
Prunus nigra Ait.		Canada Plum	Common
Prunus padus L.	#	Bird Cherry	Rare (old records)
Prunus pensylvanica L.f.		Fire Cherry	Common
Prunus pumila L. var. depressa (Pursh) Bean		Low Sand Cherry	RS (3): Morris Island (Lavergne Bay); Shirleys Bay (Innis Point); Chaudiere Islands ESA.
Prunus serotina Ehrh.		Black Cherry	Common
Prunus susquehanae Willd. (P. pumila, p. pt.)		Sand Cherry	RS (1*): Constance Bay Sand Hills* (common).
Prunus virginiana L.		Choke Cherry	Common
Rosa acicularis Lindl.		Bristly Rose	Common
Rosa arkansana Porter var. suffulta (Greene) Cockerell	#	Prairie Rose	Rare (possible native at South Gloucester)
Rosa blanda Ait.		Smooth Rose	Common
Rosa cinnamomea L.	#	Cinnamon Rose	Rare
Rosa eglanteria L.	#	Sweet-briar	Rare
Rosa multiflora Thunb.	#	Multiflora Rose	Rare
Rosa palustris Marsh.		Swamp Rose	RS (3): Vars East; Mud Pond; Britannia CA [extirpated?]; Marlborough Forest (?).
Rosa rugosa Thunb.	#	Japanese Rose	Rare
Rosa virginiana Mill.	#	Virginia Rose	Rare
Rubus allegheniensis Porter		Blackberry	Common
Rubus canadensis L.		Canada Blackberry	Uncommon
Rubus flagellaris L. (s.l.)		Northern Dewberry	Uncommon
Rubus hispidus L.		Dewberry	Uncommon
Rubus idaeus L. [cultivars]	#	Garden Raspberry	Uncommon (slowly spreading from cultivation)
Rubus occidentalis L.		Black Raspberry	Uncommon
Rubus odoratus L.		Purple-flowered Raspberry	Common
Rubus pensilvanicus Poir.		Bramble	RS (2*): Constance Bay Sand Hills* (several populations); Fitzroy Provincial Park.
Rubus pubescens Raf.		Dwarf Raspberry	Common
Rubus setosus Bigel. (s.l.)		Bristly Blackberry	Uncommon
Rubus strigosus Michx. (R. idaeus L. var. strigosus (Michx.) Max.)		Common Raspberry	Common
Sorbaria sorbifolia (L.) A. Br.	#	False-spiraea	Rare
Sorbus americana Marsh.		American Mountain-ash	Uncommon [11]
Sorbus aucuparia L.	#	European Mountain-ash	Common [urban invasive]
Spiraea alba Du Roi var. alba		Meadowsweet	Common
Spiraea alba Du Roi var. latifolia (Ait.) Dippell (S. latifolia (Ait.) Borkh.)		Meadowsweet	Common (local)
Spiraea japonica L. f.	#	Japanese Spiraea	Rare
Spiraea tomentosa L.		Steeplebush	Uncommon (locally abundant)
Spiraea vanhouttei (Briot.) Zab.	#	Bridal-wreath	Rare
Waldsteinia fragarioides (Michx.) Tratt.		Barren-ground Strawberry	Common
FABACEAE (Bean Family)
Amphicarpaea bracteata (L.) Fern.		Hog-peanut	Common
Apios americana Medic.		Ground-nut	Uncommon [16]
Astragalus canadensis L.		Canada Milk-vetch	RS (10*): Torbolton Ridge Road; The Burnt Lands*; Rockcliffe; Mud Pond; Rideau River, Ottawa; Morris Island; Chaudiere Islands ESA; Marathon Forest; Britannia CA; Poole Creek Wetland (Dibblie Quarry area) [includes adventives?].
Astragalus neglectus (T.& G.) Sheld. (A. cooperi A. Gray)		Cooper's Milk-vetch	Provincial Conservation Concern (S3); RS (5*): The Burnt Lands*; Panmure Alver; Marathon Forest; Hwy 7 west of Stittsville; Highway 7 North.
Caragana arborescens Lam	#	Siberian-pea	Rare
Coronilla varia L.	#	Crown-vetch	Uncommon (locally abundant)
Desmodium canadense (L.) DC.		Canada Tick-trefoil	Uncommon
Desmodium glutinosum (Muhl.) Wood		Tick-trefoil	Uncommon [14]
Galega officinalis L.	#	Goat's-rue	Rare
Gleditsia triacanthos L.	#	Honey-locust	Rare [native populations of Provincial Conservation Concern (S2) in Ontario]
Lathyrus ochroleucus Hook.		Yellow Pea	RS (5*): Morris Island*; Mud Pond; Shirleys Bay* (Innis Point); Britannia CA*; vicinity of Metcalfe. [plus adventives].
Lathyrus palustris L.		Vetchling	Common
Lathyrus pratensis L.	#	Yellow Vetchling	Rare (old records)
Lathyrus sylvestris L.	#	Everlasting Pea	Rare
Lathyrus tuberosus L.	#	Tuberous Vetchling	Rare
Lespedeza capitata Michx.		Bush-clover	RS (1): Shirleys Bay (Innis Point).
Lotus corniculatus L.	#	Bird's-foot Trefoil	Common
Lupinus polyphyllus L.	#	Lupine	Rare (extirpated?)
Medicago lupulina L.	#	Black Medic	Common
Medicago sativa L.	#	Alfalfa	Common
Melilotus alba Desr.	#	White Sweet-clover	Common
Melilotus officinalis (L.) Desr.	#	Yellow Sweet-clover	Common
Phaseolus coccineus L.	#	Scarlet Runner	Rare
Pisum arvense L. (P. satvium L. var. arvense (L.) Poir.)	#	Field Pea	Rare
Robinia pseudo-acacia L.	#	Black Locust	Rare
Robinia viscosa Vent.	#	Clammy Locust	Rare
Trifolium arvense L.	#	Rabbit-foot Clover	Rare
Trifolium aureum Poll. (T. agrarium L.)	#	Hop Clover	Common
Trifolium campestre Schreb. (T. procumbens L.)	#	Low Hop Clover	Common
Trifolium hybridum L.	#	Alsike Clover	Common
Trifolium pratense L.	#	Red Clover	Common
Trifolium repens L.	#	White Clover	Common
Vicia americana Muhl.		Purple Vetch	RS (3): Champlain Bridge; Chaudiere Rapids; Petrie Islands.
Vicia cracca L.	#	Cow Vetch	Common
Vicia sativa L.	#	Common Vetch	Rare
Vicia tetrasperma (L.) Moench	#	Four-seeded Vetch	Rare
Vicia villosa Roth	#	Hairy Vetch	Rare
GERANIACEAE (Geranium Family)
Erodium cicutarium (L.) l'Her.	#	Stork's-bill	Rare
Geranium bicknellii Britt.	[#]	Bicknell's Geranium	Uncommon [13]
Geranium pratense L.	#	Meadow Crane's-bill	Rare
Geranium robertianum L.	#	Herb Robert	Common
OXALIDACEAE (Wood-sorrel Family)
Oxalis acetosella L.		Wood-sorrel	Common (local)
Oxalis stricta L. (O. europea Jord.; O. fontana Bunge; O. dillenii Jacq.))		Yellow Wood-sorrel	Common
LINACEAE (Flax Family)
Linum catharticum L.	#	Purging Flax	Rare (old records)
Linum perenne L.	#	Blue Flax	Rare
Linum sulcatum Riddell	#	Grooved Flax	Rare - possibly native in South Gloucester [native populations of Provincial Conservation Concern (S3) in Ontario]
Linum usitatissimum L.	#	Common Flax	Rare
RUTACEAE (Rue Family)
Zanthoxylum americanum Mill.		Prickly-ash	Common
SIMAROUBACEAE (Quassia Family)
Ailanthus altissima (Mill.) Swingle	#	Tree-of-Heaven	Rare
POLYGALACEAE (Milkwort Family)
Polygala paucifolia Willd.		Fringed Milkwort	Uncommon [13]
Polygala polygama Walt.		Pink Polygala	RS (3): Constance Bay Sand Hills; Pinhey Forest; Marathon Forest.
Polygala sanguinea L.		Purple Milkwort	RS (10*): Rockcliffe Park ESA; Mer Bleue CA*; Constance Bay Sand Hills; Pinhey Forest; Marathon Forest; Vars West; Ont. Land Corp.; Leitrim; Baxter CA; Pine Grove Forest.
Polygala senega L.		Senega Snakeroot	Uncommon (locally abundant)
Polygala verticillata L.		Whorled Milkwort	RS (5*): Manotick Station; Marlborough Forest* (9 populations); Burritts Rapids; Stittsville West; Carp Airport .
EUPHORBIACEAE (Spurge Family)
Acalypha virginica L. (A. rhomboidea Raf.)		Three-seeded Mercury	Common
Chamaesyce glyptosperma (Engelm.) Small (Euphorbia glyptosperma Engelm.)		Ridge-seeded Spurge	RS (8): Mer Bleue CA; Antrim; South March Highlands; Stony Swamp CA; Shirleys Bay (Innis Point); Stittsville; South Gloucester; Ottawa West.
Chamaesyce maculata (L.) Small (Euphorbia maculata L.; E. supina Raf.)	#	Nodding Spurge	Common (locally abundant)
Chamaesyce nutans (Lag.) Small (Euphorbia nutans Lag.)	#	Eyebane	Rare
Chamaesyce serpyllifolia (Pers.) Small (Euphorbia serpyllifolia Pers.)	#	Thyme-leaved Spurge	Common
Chamaesyce vermiculata (Raf.) House (Euphorbia vermiculata Raf.)		Hairy Spurge	Uncommon
Euphorbia cyparissias L.	#	Cypress Spurge	Uncommon (locally abundant)
Euphorbia esula L.	#	Leafy Spurge	Rare
Euphorbia helioscopia L.	#	Sun Spurge	Rare
Euphorbia marginata Pursh	#	Snow-on-the mountain	Rare (old records)
Euphorbia peplus L.	#	Petty Spurge	Rare (old records)
Euphorbia platyphyllos L.	#	Broad-leaved Spurge	Rare
Euphorbia ×pseudoesula Schur. (E. cyparissias L. x esula L.)	#	Hybrid Spurge	Rare
CALLITRICHACEAE (Water-startwort Family)
Callitriche hermaphroditica L.		Water-starwort	RS (3): Britannia CA; Stillwater Creek; Champlain Bridge.
Callitriche verna L.		Common Water-starwort	Uncommon
ANACARDIACEAE (Cashew Family)
Rhus aromatica Ait.		Fragrant Sumac	RS (4): Constance Bay Sandhills*; Morris Island (Mississippi Snye); Lemieux Islands; Shirleys Bay (Innis Point)
Rhus hirta (L.) Sudworth (R. typhina L.)		Staghorn Sumac	Common
Toxicodendron radicans (L.) Kuntze (Rhus radicans L. ssp. negundo (Greene) McNeill)		Climbing Poison-ivy	RS (8): Greens Creek CA; South March Highlands; Petrie Islands; Ottawa South; South Gloucester; Pleasant Park Woods; Armstrong Road; Carriere Street Woods.
Toxicodendron rydbergii (Rydb.) Greene (Rhus radicans L. var. rydbergii (Sm.) McNeill)		Poison-ivy	Common
AQUIFOLIACEAE (Holly Family)
Ilex verticillata (L.) A. Gray		Winterberry Holly	Common
Nemopanthus mucronatus (L.) Loes.		Mountain-holly	RS (6*): Albion Wetland; Marlborough Forest (Munster Road Bog); Osgoode Swamp (Springhill Bog); Shirleys Bay* (Watts Creek; Shirleys Brook); Mer Bleue CA*; Stony Swamp CA.
CELASTRACEAE (Staff-tree Family)
Celastrus scandens L.		Bittersweet	Common
Celastrus orbiculata Thunb.	#	Oriental Bittersweet	Rare
Euonymus europaea L.	#	European Spindle-tree	Rare
Euonymus alatus (Thunb.) Sieb.	#	Winged Spindle-tree	Rare
STAPHYLEACEAE (Bladdernut Family)
Staphylea trifolia L.		Bladdernut	RS (5): Carleton University; Upper Jock River; North Castor River; Petrie Islands; Fitzroy Provincial Park.
ACERACAE (Maple Family)
Acer ×freemanii E. Murray (A. rubrum L. x saccharinum L.)		United Maple	Common
Acer ginnala Maxim.	#	Japanese Maple	Uncommon (spreading invasive)
Acer negundo L.	#	Manitoba Maple	Common
Acer nigrum Michx. f.		Black Maple	Uncommon
Acer pensylvanicum L.		Striped Maple	Common (local)
Acer platanoides L.	#	Norway Maple	Uncommon (aggressively spreading invasive)
Acer rubrum L.		Red Maple	Common
Acer saccharinum L.		Silver Maple	Common
Acer saccharum Marsh.		Sugar Maple	Common
Acer spicatum Lam.		Mountain Maple	Common (local)
HIPPOCASTANACEAE (Horse-chestnut Family)
Aesculus hippocastanum L.	#	Horse-chestnut	Rare
Aesculus parviflora Walt.	#	Bottlebrush Buck-eye	Rare
BALSAMINACEAE (Touch-me-not Family)
Impatiens capensis Meerb.		Spotted Touch-me-not	Common
Impatiens glandulifera Royle (Impatiens roylei Walp.)	#	Himalayan Balsam	Rare (locally abundant)
RHAMNACEAE (Buckthorn Family)
Ceanothus americanus L.		New Jersey Tea	RS (4*): Constance Bay Sand Hills* (common); Rockcliffe Park ESA; Morris Island (Mississippi Snye); Marathon Forest.
Ceanothus herbaceus Raf.		New Jersey Tea	Uncommon (locally abundant)
Rhamnus alnifolia L'Her		Alder-leaved Buckthorn	Uncommon
Rhamnus cathartica L.	#	Black Buckthorn	Common (aggressive invasive)
Rhamnus frangula L.	#	Glossy Buckthorn	Common (aggressive invasive)
VITACEAE (Grape Family)
Parthenocissus quinquefolius (L.) Planch (P. vitacea, p. pt.)		Woodbine	Uncommon [11]
Parthenocissus vitacea (Knerr) Hitchc.		Virginia Creeper	Common
Vitis labrusca L.	#	Fox Grape	Rare
Vitis riparia Michx.		River Grape	Common
TILIACEAE (Linden Family)
Tilia americana L.		Basswood	Common
Tilia cordata Mill.	#	European Linden	Uncommon (invasive)
MALVACEAE (Mallow Family)
Abutilon theophrasti Medic.	#	Velvet-leaf	Rare
Alcea rosea L.	#	Hollyhock	Rare (persisting from cultivation)
Althaea officinalis L.	#	Marsh-mallow	Rare
Lavatera thuringiaca L.	#	Tree Mallow	Rare
Malva moschata L.	#	Musk Mallow	Uncommon
Malva neglecta Wallr.	#	Common Mallow	Common
Malva sylvestris L.	#	High Mallow	Rare
Malva verticillata L.	#	Whorled Mallow	Rare (old records)
HYPERICACEAE (St. John's-wort Family)
Hypericum boreale (Britt.) Bickn. (H. mutilum L. ssp. boreale (Britt.) Gillett)		Dwarf St. John's-wort	RS (7): Carp Hills (Carp Barrens); Britannia CA; Champlain Bridge; Crown Point; Fitzroy Provincial Park; Vars East; Ont. Land Corp.
Hypericum ellipticum Hook.		Pale St. John's-wort	Common
Hypericum kalmianum L.		Kalm's St. John's-wort	RS (4): Morris Island (Lavergne Bay); Shirleys Bay (Innis Point); Crystal Bay (Beatty Point); Westboro Beach (extirpated).
Hypericum majus (A. Gray) Britt.		Large St. John's-wort	Common
Hypericum mutilum L.		Small St. John's-wort	RS (Historic): old records, Merivale; Britannia.
Hypericum perforatum L.	#	Common St. John's-wort	Common
Hypericum punctatum Lam.		Spotted St. John's-wort	Uncommon [16]
Triadenum fraseri (Spach) Gl. (T. virginicum (L.) Raf. ssp. fraseri (Spach) Gillett)		Marsh St. John's-wort	Common
ELATINACEAE (Waterwort Family)
Elatine americana (Pursh) Arn. (E. triandra Schkr.; E. rubella Rydb.)		American Waterwort	Provincial Conservation Concern (S3); RS (2): Morris Island CA; Deschenes Lookout ESA.
CISTACEAE (Rock-rose Family)
Helianthemum canadense (L.) Michx.		Frostweed	RS (1*): Constance Bay Sand Hills (common).
Hudsonia tomentosa Nutt.		Beach-heather	Provincial Conservation Concern (S2S3); RS (Extirpated): Constance Bay Sand Hills (site destroyed).
Lechea intermedia Legg.		Pinweed	RS (1*): Constance Bay Sand Hills* (common).
VIOLACEAE (Violet Family)
Viola adunca Sm.		Early Violet	RS (3*): Constance Bay Sand Hills* (common); Marathon Forest; The Burnt Lands.
Viola blanda Willd. (inc. V. incognita Brain.)		Sweet White Violet	Common
Viola canadensis L.		Canada Violet	Common (local)
Viola cucullata Ait.		Marsh Blue Violet	Common
Viola labradorica Shrank (V. conspersa Reich.)		Dog Violet	Common
Viola lanceolata L.		Lance-leaved Violet	RS (3): Britannia C.A.; Horseshoe Bay; Fitzroy Provincial Park.
Viola macloskeyi Lloyd ssp. pallens (Banks) Baker		Northern White Violet	Common
Viola nephrophylla Greene		Northern Bog Violet	Uncommon (locally abundant)
Viola odorata L.	#	Sweet Violet	Rare
Viola pubescens Ait. (incl. V. eriocarpa Schwein.)		Yellow Violet	Common
Viola renifolia A. Gray		Kidney-leaf Violet	Uncommon [14]
Viola rostrata Pursh		Long-spurred Violet	RS (2*): Stony Swamp CA*; South March Highlands.
Viola sagittata Ait. var. ovata (Nutt.) T. & G. (V. fimbriatula Sm.)		Northern Downy Violet	RS (1*): Constance Bay Sand Hills (uncommon).
Viola selkirkii Pursh		Great-spurred Violet	RS (4*): Osgoode Swamp; Cooper Hill Road; Pana Road; South Gloucester*.
Viola sororia Willd. var. sororia (V. septentionalis, auct.)		Wooly Blue Violet	Common
Viola sororia Willd. var. affinis (LeConte) McKinney (V. affinis LeConte)		LeConte's Violet	Uncommon
Viola tricolor L.	#	Johnny-jump-up	Rare
CACTACEAE (Cactus Family)
Opuntia fragilis (Nutt.) Haw.	#	Prickly-pear	Rare (extirpated cultivar); native populations of Provincial Conservation Concern (S2)
THYMELAEACEAE (Mezereum Family)
Daphne mezereum L.	#	Mezereum	Rare (old records)
Dirca palustris L.		Leatherwood	Common (local)
ELAEAGNACEAE (Oleaster Family)
Elaeagnus angustifolia L.	#	Russian-olive	Rare
Elaeagnus umbellata Thunb.	#	Autumn-olive	Rare
Shepherdia canadensis (L.) Nutt.		Buffaloberry	Uncommon
LYTHRACEAE (Loosestrife Family)
Decodon verticillatus (L.) Ell.		Water-willow	Uncommon (locally abundant)
Lythrum alatum Pursh		Winged Loosestrife	Provincial Conservation Concern (S3); RS: Extirpated (?), old record, Marlborough Forest
Lythrum salicaria L.	#	Purple Loosestrife	Common (invasive)
ONAGRACEAE (Evening-primrose Family)
Circaea alpina L.		Lesser Enchanter's-nightshade	Uncommon
Circaea lutetiana L. ssp. canadensis (L.) Asch. & Magnus		Enchanter's-nightshade	Common
Epilobium angustifolium L.		Fireweed	Common
Epilobium ciliatum Raf. (E. adenocaulon Haussk.; E. glandulosum, auct.)		Willow-herb	Common
Epilobium coloratum Biehler		Purple-leaved Willow-herb	Uncommon [14]
Epilobium hirsutum L.	#	Hairy Willow-herb	Rare
Epilobium leptophyllum Raf.		Narrow-leaved Willow-herb	Uncommon [16]
Epilobium palustre L.		Swamp Willow-herb	RS (5): Huntley Wetland; Stony Swamp CA; Pinhey Forest; Marlborough Forest; Osgoode Swamp.
Epilobium parviflorum Schreb.	#	Willow-herb	Rare
Epilobium strictum Spreng.		Downy Willow-herb	RS (8): Stony Swamp CA; Mer Bleue CA; Petrie Islands; Albion Wetland; Carlsbad Springs East; Vars East; South Gloucester; Long Swamp.
Ludwigia palustris (L.) Ell.		Marsh-purslane	Common
Oenothera biennis L.		Evening-primrose	Common? [taxonomic problem]
Oenothera oakesiana (A. Gray) Wats. & Coult.		Oakes's Evening-primrose	RS (1*): Constance Bay Shores (several populations).
Oenothera parviflora L. (incl. O. cruciata Nutt. ex G. Don)		Evening-primrose	Common? [taxonomic problem]
Oenothera perennis L.		Sundrops	Uncommon
HALORAGIDACEAE (Water-milfoil Family)
Myriophyllum alterniflorum DC.		Alternate Water-milfoil	Uncommon
Myriophyllum sibiricum Kom. (M. excalbescens Fern.)		Water-milfoil	Common
Myriophyllum spicatum L.	#	Spiked Water-milfoil	Common (aggressively spreading invasive)
Myriophyllum tenellum Bigel.		Northern Water-milfoil	Uncommon (locally abundant in Ottawa River).
Myriophyllum verticillatum L.		Whorled Water-milfoil	RS (6): Highway 7 west of Stittsville; Albion Wetland; Duck Islands; Constance Creek; Galetta (Mississippi River); Fitzroy Provincial Park.
Proserpinaca palustris L.		Mermaid-weed	RS (4*): The Burnt Lands*; Shirleys Bay (Shirleys Brook); Constance Lake; Marlborough Forest* (5 populations).
ARALIACEAE (Ginseng Family)
Aralia hispida Vent.		Bristly Sarsaparilla	Common (local)
Aralia nudicaulis L.		Wild Sarsaparilla	Common
Aralia racemosa L.		Spikenard	Uncommon
Panax quinquefolius L.		Ginseng	Provincial Conservation Concern (S3): RS (4*): South March Highlands; Marlborough Forest*; Harwood Plain; South Gloucester.
Panax trifolius L.		Dwarf Ginseng	RS (8): South March Highlands (Trillium Woods); Pleasant Park Woods ESA; Stony Swamp CA; Pine Grove Forest; Ont. Land Corp.; MacSkimming Woods; Vars East; South Gloucester.
APIACEAE (Carrot Family)
Aegopodium podagraria L.	#	Goutweed	Common
Anethum graveolens L.	#	Dill	Rare
Angelica atropurpurea L.		Black-stem Angelica	RS (3): Crown Point; Magladry Road South; Corkery.
Angelica sylvatica L.	#	Woodland Angelica	Rare (locally abundant)
Anthriscus sylvestris (L.) Hoff.	#	False Chervil	Rare
Carum carvi L.	#	Caraway	Rare
Cicuta bulbifera L.		Bulblet Water-hemlock	Common
Cicuta maculata L.		Water-hemlock	Uncommon [14]
Conium maculatum L.	#	Poison-hemlock	Rare (old records)
Coriandrum sativum L.	#	Coriander	Rare (old records)
Cryptotaenia canadensis (L.) DC.		Honewort	Uncommon
Daucus carota L.	#	Wild Carrot	Common
Eryngium planum L.	#	Eryngo	Rare (old records)
Heracleum maximum Bartr. (H. lanatum Michx)		Cow-parsnip	RS (7): Chaudiere Rapids; southern Marlborough Forest; Burritts Rapids; Kinburn Clay Plain Woods; Lanark Black Maple Woods; North Osgoode Complex; Fitzroy Provincial Park.
Hydrocotyle americana L.		Marsh Pennywort	RS (8*): Stony Swamp CA; Pinhey Forest; Queenswood Forest; Forestglen Park*; Old Dump Woods; Ont. Land Corp; Albion Wetland; Bell High School Woods.
Osmorhiza claytonii (Michx.) Clarke		Sweet Cicely	Common (local)
Osmorhiza longistylis (Torr.) DC.		Anise-root	RS (5): Stony Swamp CA; Carp Hills; Stony Swamp CA; Mer Bleue CA; Pine Grove Forest.
Pastinaca sativa L.	#	Wild Parsnip	Common
Pimpinella saxifraga L.	#	Burnet-saxifrage	Rare (old records)
Sanicula marilandica L.		Black Snakeroot	Common
Sanicula odorata Pryer & Phillipe (S. gregaria Bickn.)		Yellow Snakeroot	Uncommon [18]
Sanicula trifoliata L.		Three-leaved Snakeroot	RS (8): Harwood Plain; Sawmill Road; South Gloucester; Carsonby; Goulbourn; Osgoode Swamp; O'Toole Road; DND Woods.
Sium suave Walt.		Water-parsnip	Common
Zizia aurea (L.) Koch		Golden Alexanders	RS (3): Marlborough Forest (Richmond Fen); Vars East; Manotick Station South.
CORNACEAE (Dogwood Family)
Cornus alternifolia L.f.		Alternate-leaved Dogwood	Common
Cornus amomum Mill. ssp. obliqua (Raf.) Wilson (C. obliqua Raf.)		Silky Dogwood	Uncommon
Cornus canadensis L. var. canadensis		Bunchberry	Common
Cornus foemina Mill. ssp. racemosa (Lam.) Wilson (C. racemosa Lam.)		Panicled Dogwood	Uncommon
Cornus rugosa Lam.		Round-leaved Dogwood	Common
Cornus sericea L. (C. stolonifera Michx.)		Red-osier Dogwood	Common
PYROLACEAE (Wintergreen Family)
Chimaphila umbellata (L.) Bart.		Pipsissewa	Uncommon [13]
Moneses uniflora (L.) A. Gray		One-flowered Wintergreen	RS (10): Marlborough Forest *; Albion Wetland; Stony Swamp CA; Shirleys Bay (Innis Point); Corkery Wetland; Greens Creek CA; Carlsbad Springs; Manotick Station South; Vars East; Anderson Road.
Monotropa hypopithys L.		Pinedrops	Uncommon
Monotropa uniflora L.		Indian-pipe	Common
Orthilia secunda (L.) House (Pyrola secunda L.)		One-sided Pyrola	Uncommon
Pterospora andromedea Nutt.		Pinesap	Provincial Conservation Concern (S3); RS (4): Greens Creek CA; Baskins Beach; Morris Island.
Pyrola americana Sweet (P. rotundifolia L. var. americana (Sweet) Fern.)		Round-leaved Pyrola	RS (9): Hunt Club Creek; The Burnt Lands; Constance Bay Sand Hills; Stony Swamp CA; Mer Bleue CA; Vars West; Magladry Road S; Vars East; Church Woods; Bypass Woods.
Pyrola asarifolia Michx.		Pink Pyrola	Common
Pyrola chlorantha Sw. (P. virens Schweig.)		Greenish-flowered Pyrola	Uncommon [11]
Pyrola elliptica Nutt.		Shinleaf	Common
Pyrola minor L.		Small Shinleaf	RS (1): Pine Grove Forest.
ERICACEAE (Heath Family)
Andromeda glaucophylla Link		Bog-rosemary	RS (6*): Mer Bleue CA* (common); Mud Pond; Long Swamp; Marlborough Forest* (Richmond Fen; Phragmites Fen); Osgoode Swamp* (Herberts Corners Bog).
Arctostaphylos uva-ursi (L.) Spreng.		Bearberry	Uncommon
Chamaedaphne calyculata (L.) G. Don		Leatherleaf	Uncommon
Epigaea repens L.		Trailing-arbutus	RS (1): Constance Bay Sand Hills.
Gaultheria hispidula (L.) Muhl.		Creeping Snowberry	Uncommon
Gaultheria procumbens L.		Wintergreen	Common
Gaylussacia baccata (Wang.) K. Koch		Black Huckleberry	Uncommon
Kalmia angustifolia L.		Sheep Laurel	Uncommon
Kalmia polifolia Wang.		Bog Laurel	RS (5*): Mer Bleue CA* (common); Marlborough Forest (Phragmites Fen); Long Swamp; Stony Swamp CA; Osgoode Swamp* (Springhill Bog; Herberts Corners Bog).
Ledum groenlandicum Oeder		Labrador-tea	Uncommon (locally abundant)
Vaccinium angustifolium Ait.		Low Blueberry	Common (local)
Vaccinium corymbosum L.		High-bush Blueberry	Uncommon [11]
Vaccinium macrocarpon Ait.		Large Cranberry	RS (2*): Mud Pond; Mer Bleue CA* (common).
Vaccinium myrtilloides Michx.		Velvetleaf Blueberry	Common
Vaccinium oxycoccus L.		Small Cranberry	Uncommon (locally abundant)
PRIMULACEAE (Primrose Family)
Anagallis arvensis L.	#	Scarlet Pimpernel	Rare (old records)
Lysimachia ciliata L.		Fringed Loosestrife	Common
Lysimachia hybrida Michx.		Hybrid Loosestrife	Provincial Conservation Concern (S1); RS (Historic): old records, Bells Corners, Merivale
Lysimachia nummularia L.	#	Moneywort	Uncommon
Lysimachia punctata L.	#	Spotted Loosestrife	Rare
Lysimachia quadrifolia L.		Whorled Loosestrife	RS (2*): Constance Bay Sand Hills* (common); Morris Island [sight record].
Lysimachia terrestris (L.) BSP.		Swamp Candles	Common
Lysimachia thyrsiflora L.		Tufted Loosestrife	Uncommon
Lysimachia vulgaris L.	#	Garden Loosestrife	Rare
Samolus valerandi L.		Water-pimpernel	RS (Historic): old records, Vincent Massey Park; 'Ottawa'; (also Shirleys Bay?)
Trientalis borealis Raf.		Starflower	Common
OLEACEAE (Olive Family)
Fraxinus americana L.		White Ash	Common
Fraxinus nigra Marsh.		Black Ash	Common
Fraxinus pennsylvanica Marsh.		Green Ash	Common
Syringa reticulata (Blume) Hara (S. japonica (Max.) Dcne.)	#	Japanese Lilac	Rare
Syringa josikaea Jacq. f. ex Reichenb.	#	Hungarian Lilac	Rare
Syringa villosa Vahl	#	Late Lilac	Rare
Syringa vulgaris L.	#	Lilac	Common
GENTIANACEAE (Gentian Family)
Centaurium pulchellum (Sw.) Druce	#	Branching Centaury	Rare
Gentiana andrewsii Griseb.		Bottle Gentian	Uncommon
Gentianopsis crinita (Froel.) Ma		Fringed Gentian	Uncommon
Halenia deflexa (Sm.) Griseb.		Spurred-gentian	RS (9*): The Burnt Lands; Stony Swamp; Kinburn; Stittsville; Stittsville West; Highway 7 North*; Marathon Forest*; North Castor River; Long Swamp.
MENYANTHACEAE (Buckbean Family)
Menyanthes trifoliata L.		Bog-bean	RS (4*): Mer Bleue CA *; Albion Wetland; Marlborough Forest*; Long Swamp.
Nymphoides cordata (Ell.) Fern.		Floating-heart	Uncommon [14]
APOCYNACEAE (Dogbane Family)
Apocynum androsaemifolium L.		Spreading Dogbane	Common
Apocynum ×floribundum E. Greene (A. ×medium E. Greene; A. androsaemifolium L. x cannabinum L.)		hybrid Dogbane	Rare
Apocynum cannabinum L. (A. sibiricum Jacq.)	[#]	Indian-hemp	Uncommon [native populations along rivers]
Vinca minor L.		Periwinkle	Uncommon (invasive)
ASCLEPIADACEAE (Milkweed Family)
Asclepias incarnata L.		Swamp Milkweed	Common
Asclepias syriaca L.		Common Milkweed	Common
Asclepias tuberosa L.	[#]	Butterfly-weed	RS (1*): Constance Bay Sand Hills* (common) [* cultivars established in South March Highlands; Manotick Station].
Asclepias verticillata L.	#	Whorled Milkweed	Rare (possibly native at Grainger Side Road); native populations of Provincial Conservation Concern (S2) in Ontario
Cynanchum louiseae Kartesz & Ghandi (Vincetoxicum nigrum (L.) Moench)	#	Black Swallow-wort	Rare (invasive)
Cynanchum rossicum (Klepov) Barb. (Vincetoxicum medium auct., non (R. Br.) Dcne; V. rossicum (Klepov) Barb.)	#	Swallow-wort	Uncommon (locally abundant invasive)
CONVOLVULACEAE (Morning-glory Family)
Calystegia sepium (L.) R.Br. ssp. americanum (Simms) Brumm. (Convolvulus sepium L.)		Hedge Bindweed	Common
Calystegia spithamaea (L.) Pursh (Convolvulus spithameus L.)		Low Bindweed	RS (6*): The Burnt Lands* (several populations); Shirleys Bay (Innis Point); Mud Pond* (locally common); Rockcliffe Park ESA; Constance Bay Sand Hills; Panmure Alvar.
Convolvulus arvensis L.	#	Small Bindweed	Common
Ipomoea hederacea (L.) Jacq.	#	Morning-glory	Rare (old records)
Ipomoea purpurea (L.) Roth	#	Morning-glory	Rare
CUSCUTACEAE (Dodder Family)
Cuscuta campestris Yunck.	#	Dodder	Rare (old record); native populations of Provincial Conservation Concern (S2) in Ontario
Cuscuta gronovii Willd.		Dodder	Uncommon [11]
POLEMONIACEAE (Phlox Family)
Collomia linearis Nutt.	#	Collomia	Rare (old records)
Phlox divaricata L.		Blue Phlox	Uncommon [13]
Phlox paniculata L.	#	Perennial Phlox	Rare
Phlox subulata L.	#	Moss Phlox	Rare; native populations of Provincial Conservation Concern (S1?) in Ontario
HYDROPHYLLACEAE (Waterleaf Family)
Hydrophyllum virginianum L.		Waterleaf	Common
BORAGINACEAE (Borage Family)
Asperugo procumbens L.	#	Madwort	Rare (old records)
Cynoglossum officinale L.	#	Sheep-bur	Common
Cynoglossum virginianum L. var. boreale (Fern.) Cooperrider (C. boreale Fern.)		Northern Comfrey	RS (5): The Burnt Lands; Fitzroy Harbour; Airbase Woods; Marlborough Forest; Marathon Forest.
Echium vulgare L.	#	Viper's Bugloss	Common
Hackelia deflexa (Wahl.) Opiz (H.americana (A. Gray) Fern.)		American Stickseed	Uncommon [12]
Hackelia virginiana (L.) Johnst.		Virginia Stickseed	Uncommon [20]
Lappula squarrosa (Retz.) Dumort (L. myosotis Moench; Myosotis echinata Gilb.)	#	Bur-seed	Rare
Lithospermum arvense L.	#	Corn Gromwell	Rare
Lithospermum caroliniense (Walt.) MacM.		Puccoon	Provincial Conservation Concern (S2): RS (1*): Constance Bay Sand Hills* (common).
Lithospermum officinale L.	#	Gromwell	Common
Myosotis arvensis (L.) Hill	#	Forget-me-not	Rare
Myosotis scorpioides L.	#	Large Forget-me-not	Rare (locally abundant).
Myosotis stricta Link (M. micrantha Pall.)	#	Scorpion-grass	Rare
Omphalodes linifolia (L.) Moench	#	Navelwort	Rare (old records)
Symphytum asperum Lapech.	#	Prickly Comfrey	Rare (old records)
Symphytum officinale L.	#	Comfrey	Rare
VERBENACEAE (Vervain Family)
Verbena hastata L.		Blue Vervain	Common
Verbena simplex Lehm.		Narrow-leaved Vervain	RS (7*): Highway 7 North (several populations); Poole Creek Wetland* (several populations); Marlborough Forest (Flood Road); Stony Swamp CA; Stittsville West; Jinkinson Road; Burritts Rapids.
Verbena stricta Vent.		Hoary Vervain	RS (7*): South March Highlands; Carp Hills; Dwyer Hill; Cranberry Creek; Manions Corners; Marlborough Forest*; Fitzroy Provincial Park.
Verbena urticifolia L.		White Vervain	Uncommon [13]
LAMIACEAE (Mint Family)
Acinos arvensis (Lam.) Dandy (Satureja acinos (L.) Scheele)	#	Basil Balm	Rare
Agastache foeniculum (Pursh) Kuntze	#	Giant Hyssop	Rare
Ajuga repens L.	#	Bugle	Rare
Clinopodium vulgare L. (Satureja vulgaris (L.) Fritsch)	#	Wild Basil	Common
Dracocephalum parviflorum Nutt.		Dragonhead	Uncommon
Galeopsis tetrahit L.	#	Hemp-nettle	Common
Glechoma hederacea L.	#	Ground-ivy	Common
Hedeoma hispidum Pursh		Mock Pennyroyal	RS (6): North Gower; Dwyer Hill; Stony Swamp CA; Conroy Swamp ESA; Marlborough Forest; Stittsville West.
Hedeoma pulegioides (L.) Pers.		American Pennyroyal	RS (5): South Gloucester; Stony Swamp CA; Ont. Land Corp.; Panmure Alar; Highway 44.
Hyssopus officinalis L.	#	Hyssop	Rare (old records)
Leonurus cardiaca L.	#	Motherwort	Common
Lycopus americanus Muhl.		Cut-leaved Bugleweed	Common
Lycopus asper Greene		Bugleweed	Provincial Conservation Concern (S2): RS (2): Champlain Bridge; Upper Jock River.
Lycopus uniflorus Michx.		Northern Bugleweed	Common
Mentha canadensis L. (M. arvensis auct., non L.)		Wild Mint	Common
Mentha ×gentilis L. (M. arvensis L. x spicata L.)	#	Red Mint	Rare (old records)
Mentha ×piperita L. (M. aquatica L. x spicata L.)	#	Peppermint	Rare
Mentha spicata L.	#	Spearmint	Rare
Monarda didyma L.	#	Bee-balm	Rare
Monarda fistulosa L.		Wild Bergamot	RS (5*): Fitzroy Harbour*; Stony Swamp CA; Metcalfe; South Gloucester; Marlborough Forest
Nepeta cataria L.	#	Catnip	Common
Origanum heracleticum L.	#	Winter Sweet Marjoram	Rare
Origanum vulgare L.	#	Wild Marjoram	Common (local)
Physostegia virginiana (L.) Benth.		False Dragonhead	RS (1): Stony Swamp CA; Britannia CA [extirpated]; Airport Parkway [native status questionable].
Prunella vulgaris L.	[#]	Heal-all	Common
Pycnanthemum tenuifolium Schrad.	#	Slender Mountain-mint	Rare possibly native in South Gloucester [native populations of Provincial Conservation Concern (S3) in Ontario]
Pycnanthemum virginianum (L.) Dur. & Jack.		Mountain-mint	RS (7*): Shirleys Bay (Innis Point); Burritts Rapids (Brassils Creek); Morris Island (Lavergne Bay); Fitzroy Provincial Park; Marlborough Forest*; South Gloucester*.
Salvia verticillata L.	#	Whorled Sage	Rare
Scutellaria galericulata L.		Marsh Skullcap	Common
Scutellaria lateriflora L.		Mad-dog Skullcap	Common
Scutellaria parvula Michx.		Small Skullcap	Uncommon [11]
Stachys hispida Pursh (S. tenuifolia, auct.)		Smooth Hedge-nettle	Uncommon
Stachys pilosa Nutt.		Hedge-nettle	Provincial Conservation Concern (S1?); RS (1): Stillwater Creek [taxonomic problem]
Stachys palustris L.	#	Woundwort	Uncommon
Teucrium canadense L.		Germander	RS (4): Marlborough Forest (Richmond Fen); Cardinal Creek; Stony Swamp CA; Upper Jock River (Cedarview Road).
Thymus pulegioides L.	#	Thyme	Rare
Trichostema brachiatum L. (Isanthus brachiatus (L.) Britt.)		False Pennyroyal	Uncommon (locally abundant)
SOLANACEAE (Nightshade Family)
Datura stramonium L.	#	Jimson-weed	Rare
Leucophysalis grandiflora (Hook.) Rydb. (Physalis grandiflora Hook.)		White Ground-cherry	Provincial Conservation Concern (S3); RS (5): West Osgoode Wetland; Osgoode Swamp; Vars East; Stittsville; Jinkinson Road.
Lycium halimifolium Mill.	#	Matrimony-vine	Rare (old records)
Lycopersicum esculentum Mill.	#	Tomato	Rare
Nicandra physalodes (L.) Gaertn.	#	Apple-of-Peru	Rare (old records)
Physalis heterophylla Nees		Clammy Ground-cherry	Common
Physalis ixocarpa Brot.	#	Tomatillo	Rare (old records)
Solanum carolinense L.	#	Horse-nettle	Rare
Solanum cornutum Dunal (S. rostratum Dunal)	#	Buffalo-bur	Rare (old records)
Solanum dulcamara L.	#	Deadly Nightshade	Common
Solanum ptycanthum Dunal (S. americanum, auct.)		Black Nightshade	Common
SCROPHULARIACEAE (Figwort Family)
Agalinis paupercula (A. Gray) Britt. (A. purpurea (L.) Penn. var. parviflora (Benth.) Boivin)		Small-flowered Gerardia	RS (3): Mississippi Snye; Andrew Haydon Park; Marlborough Forest (Flood Road).
Agalinis tenuifolia (Vahl.) Raf. var. parviflora (Nutt.) Penn.		Slender Gerardia	Uncommon (locally abundant)
Chaenorrhinum minus (L.) Lange	#	Dwarf Snapdragon	Common
Chelone glabra L.		Turtlehead	Uncommon
Cymbalaria muralis Gaertn., Mey. & Schreb.	#	Kenilworth-ivy	Rare
Euphrasia stricta Wolf.	#	Eyebright	Common (spreading).
Gratiola aurea Pursh		Golden Hedge-hyssop	RS (5): Constance Bay Shores; Horseshoe Bay; Britannia CA; Deschenes Lookout; Westboro Beach.
Gratiola neglecta Torr.		Hedge-hyssop	RS (6): Britannia CA; Baxter CA; Edwards; MacSkimming Woods; Findlay Creek; Carlsbad Springs Southwest.
Linaria vulgaris Hill	#	Toadflax	Common
Lindernia dubia (L.) Penn.		False Pimpernel	Common
Melampyrum lineare Desr.		Cow-wheat	RS (6*): Highway 7 west of Stittsville; Stony Swamp CA*; Constance Bay Sand Hills* (common); The Burnt Lands; Marathon Forest; Carp Hills*.
Mimulus ringens L.		Monkey-flower	Common
Pedicularis canadensis L.		Wood-betony	Uncommon [11]
Penstemon digitalis Nutt.		Fox-glove Beard-tongue	Common
Penstemon hirsutus (L.) Willd.		Hairy Beard-tongue	Uncommon
Penstemon pallidus Sm	#	Pale Beard-tongue	Rare
Scrophularia lanceolata Pursh		Figwort	RS (9): Hunt Club Creek; Stony Swamp CA; Mer Bleue CA; Vars West; Carlsbad Springs SW; Cranberry Creek; Vars East; DND Woods; Marlborough Forest (Roger Stevens Dr); (recently extirpated Rideau River at Uplands; Centre point, Nepean].
Verbascum blattaria L.	#	Moth Mullein	Uncommon
Verbascum nigrum L.	#	Black Mullein	Rare
Verbascum thapsus L.	#	Mullein	Common
Veronica americana Benth.		Brooklime	Uncommon [taxonomic problem]
Veronica anagallis-aquatica L. (V. catenata Penn; V. comosa Richter)		Water Speedwell	RS (5*): The Burnt Lands; South Gloucester*; Airbase Woods; Burritts Rapids (Brassils Creek); Marathon Forest [taxonomic problem]
Veronica arvensis L.	#	Field Speedwell	Rare
Veronica beccabunga L.	#	European Brooklime	Rare
Veronica chamaedrys L.	#	Bird's-eye Speedwell	Rare
Veronica filiformis Sm.	#	Slender Speedwell	Rare
Veronica longifolia L.	#	Long-leaved Speedwell	Rare
Veronica officinalis L.	#	Common Speedwell	Common
Veronica peregrina L. ssp. Peregrina		Purslane Speedwell	Uncommon [adventive?]
Veronica peregrina L. ssp. xalapensis (Kunth) Penn.		Purslane Speedwell	Uncommon [16]
Veronica persica Poir.	#	Persian Speedwell	Rare
Veronica scutellata L.		Marsh Speedwell	Uncommon
Veronica serpyllifolia L.	#	Thyme-leaved Speedwell	Common
Veronica verna L.	#	Spring Speedwell	Rare
OROBANCHACEAE (Broom-rape Family)
Epifagus virginiana (L.) Bart.		Beech-drops	Common
Orobanche uniflora L.		Cancer-root	RS (Historic): old records, Champlain Bridge; 'Ottawa'.
LENTIBULARIACEAE (Bladderwort Family)
Utricularia cornuta Michx.		Horned Bladderwort	RS (1*): Long Swamp*.
Utricularia geminiscapa Benj.		Twinned Bladderwort	Provincial Conservation Concern (S3); Rare (1): Mer Bleue CA.
Utricularia intermedia Hayne		Flat-leaved Bladderwort	RS (2*): Marlborough Forest* (Richmond Fen; Phragmites Fen); Long Swamp.
Utricularia macrorhiza Leconte (U. vulgaris, auct.)		Common Bladderwort	Common
Utricularia minor L.		Lesser Bladderwort	RS (8*): Poole Creek Wetland (Rothbourne Swamp); Huntley Wetland; Marlborough Forest* (Richmond Fen; Paden Road Alvar); Long Swamp; Mer Bleue CA*; Albion Wetland; Metcalfe [also introduced].
PHRYMACEAE (Lopseed Family)
Phryma leptostachya L.		Lopseed	Uncommon
PLANTAGINACEAE (Plantain Family)
Littorella americana Fern.		Shore-grass	RS (2): Horseshoe Bay; Britannia CA.
Plantago arenaria Waldst. & Kit. (P. psyllium L.)	#	Fleawort	Rare
Plantago aristata Michx.	#	Buckhorn	Rare (old record)
Plantago lanceolata L.	#	English Plantain	Common
Plantago major L.	#	Common Plantain	Common
Plantago media L.	#	Hoary Plantain	Rare
Plantago rugelii Dcne.		Pale Plantain	Common
RUBIACEAE (Bedstraw Family)
Cephalanthus occidentalis L.		Buttonbush	Uncommon
Galium aparine L.		Cleavers	Uncommon [12]
Galium asprellum Michx.		Rough Bedstraw	Uncommon [18]
Galium boreale L.		Northern Bedstraw	RS (4): Stony Swamp CA; South March Highlands; McCarthy Woods; South Gloucester [some adventive?].
Galium circaezans Michx.		White Licorice	Uncommon [18]
Galium labradoricum (Wieg.) Wieg.		Bog Bedstraw	RS (6*): Huntley Wetland; Marlborough Forest* (Richmond Fen; Phragmites Fen; Flood Road); Long Swamp; Mud Pond; Albion Wetland; Highway 7 North.
Galium mollugo L.	#	White Bedstraw	Common (spreading aggressively).
Galium obtusum Bigel.		Shore Bedstraw	RS (8): Fitzroy Provincial Park; Shirleys Bay (Innis Point); North Gower; Lemieux Islands; Britannia CA; Manotick Station South; Petrie Islands.
Galium palustre L.		Marsh Bedstraw	Common
Galium spurium L.	#	False Cleavers	Rare (old record)
Galium tinctorium L.		Dyer's Bedstraw	Uncommon [13]
Galium trifidum L.		Small Bedstraw	Uncommon
Galium triflorum Michx.		Fragrant Bedstraw	Common
Galium verum L.	#	Yellow Bedstraw	Uncommon (abundant on Morris Island)
Mitchella repens L.		Partridgeberry	Common
Sherardia arvensis L.	#	Field-madder	Rare
CAPRIFOLIACEAE (Honeysuckle Family)
Diervilla lonicera Mill.		Northern Bush-honeysuckle	Common
Linnaea borealis L.		Twinflower	Uncommon
Lonicera ×bella Zarb. (L. morrowi A. Gray x tartarica L.)	#	Honeysuckle	Rare
Lonicera canadensis Bart. ex Marsh.		Canada Fly-honeysuckle	Common
Lonicera dioica L.		Red Honeysuckle	Uncommon
Lonicera hirsuta L.		Hairy Honeysuckle	Uncommon
Lonicera morrowi A. Gray	#	Morrow's Honeysuckle	Uncommon
Lonicera oblongifolia (Goldie) Hook.		Swamp Fly-honeysuckle	Uncommon [17]
Lonicera tatarica L.	#	Tartarian Honeysuckle	Common (aggressively invasive)
Lonicera villosa (Michx.) R.& S.		Northern Honeysuckle	RS (3): Albion Wetland; southern Marlborough Forest; Osgoode Swamp (Springhill Bog).
Lonicera xylosteum L.	#	European Fly-honeysuckle	Uncommon (locally abundant).
Sambucus canadensis L.		Canada Elderberry	Uncommon
Sambucus racemosa L. ssp. pubens (Michx.) House (S. pubens Michx.)		Red Elderberry	Common
Symphoricarpos albus (L.) Blake		Snowberry	Uncommon (locally abundant)
Symphoricarpos occidentalis Hook.	#	Wolfberry	Rare
Triosteum aurantiacum Bickn. (T. perfoliatum L. var. aurantiacum (Bickn.) Wieg.)		Horse-gentian	Uncommon
Viburnum acerifolium L.		Maple-leaf Viburnum	Common
Viburnum dentatum L. var. lucidum Ait. (V. recognitum Marsh.)		Southern Arrow-wood	RS (4*): Stony Swamp CA; West Osgoode Swamp* (common); Osgoode Swamp (Springhill Bog); Bypass Woods; Conroy Woods [extirpated, South March Highlands].
Viburnum lantana L.	#	Wayfaring-tree	Rare
Viburnum lantanoides Michx. (V. alnifolium Marsh.)		Hobblebush	Uncommon
Viburnum lentago L.		Southern Wild-raisin	Common
Viburnum nudum L. var. cassinoides (L.) Torr. & Gray (V. cassinoides L.)		Northern Wild-raisin	Uncommon
Viburnum opulus L.	#	European Highbush-cranberry	Uncommon (invasive)
Viburnum rafinesquianum Schultes		Northern Arrow-wood	Common
Viburnum trilobum Marsh. (V. opulus L. var. americanum (Mill.) Ait.)		Highbush-cranberry	Uncommon
VALERIANACEAE (Valerian Family)
Valeriana officinalis L.	#	Valerian	Rare
Valeriana sitchensis Bong. ssp. Uliginosa (T.& G.) Mey. (V. uliginosa (T. & G.) Rydb.)		Marsh Valerian	Provincial Conservation Concern (S2); RS (1): Albion Wetland.
DIPSACACEAE (Teasel Family)
Dipsacus sylvestris L.	#	Teasel	Rare
CUCURBITACEAE (Gourd Family)
Echinocystis lobata (Michx.) T.& G.		Wild Cucumber	Common
Sicyos angulatus L.		Bur-cucumber	RS (2): Petrie Islands; Billings Bridge Islands CA [plus adventives].
Thladiantha dubia Runge	#	Goldencreeper	Rare
CAMPANULACEAE (Bellflower Family)
Campanula aparinoides Pursh		Marsh Bellflower	Uncommon
Campanula cochlearifolia Lam.	#	Dwarf Bellflower	Rare
Campanula glomerata L.	#	Cluster Bellflower	Rare
Campanula persicifolia L.	#	Peach-leaved Bellflower	Rare
Campanula rapunculoides L.	#	Creeping Bellflower	Common
Campanula rotundifolia L.		Bluebell	Common
Triodanis perfoliata (L.) Nieuwl. (Specularia perfoliata (L.) DC.)	#	Venus's Looking-glass	Rare (old records); native elsewhere in southern Ontario
LOBELIACEAE (Lobelia Family)
Lobelia cardinalis L.		Cardinal-flower	Uncommon (declining in urban areas)
Lobelia inflata L.		Indian-tobacco	Common
Lobelia kalmii L.		Kalm's Lobelia	Uncommon
Lobelia spicata Lam.		Pale Lobelia	Uncommon
ASTERACEAE (Aster Family)
Achillea filipendulina Lam.	#	Fern-leaf Yarrow	Rare (old records)
Achillea millefolium L.		Yarrow	Common
Achillea ptarmica L.	#	Sneezeweed	Rare
Ageratina altissima (L.) King & Robins. (Eupatorium rugosum Houtt.)		White Snakeroot	Common
Ambrosia artemisiifolia L.		Ragweed	Common
Ambrosia psilostachya DC	#	Western Ragweed	Rare
Ambrosia trifida L.	#	Giant Ragweed	Rare
Anaphalis margaritacea (L.) Benth. & Hook.		Pearly-everlasting	Common
Antennaria howellii E. Greene ssp. canadensis (E.Greene) Bayer (A. canadensis E. Greene)		Canada Pussy-toes	Uncommon
Antennaria howellii E. Greene ssp. petaloidea (Fern.) Bayer (A. petaloidea Fern.)		Pussy-toes	Uncommon
Antennaria howellii E. Greene ssp. neodioica (E. Greene) Bayer (A. neodioica E. Greene)		Pussy-toes	Common
Antennaria neglecta Greene		Field Pussy-toes	Common
Antennaria parlinii Fern. (A. plantaginifolia, auct.)		Plantain Pussy-toes	RS (6): South Gloucester; Stony Swamp CA; Whelan Park; Mer Bleue CA; Hospital Woods; Quarry Woods.
Anthemis cotula L.	#	Mayweed	Common
Anthemis tinctoria L.	#	Yellow Chamomile	Rare
Arctium lappa L.	#	Great Burdock	Uncommon
Arctium minus Bernh.	#	Common Burdock	Common
Arctium ×nothum (Ruhmer) Weiss (A. lappa L. x minus (Hill.) Bernh.; A. nemorosum Lej. & Court.)	#	hybrid Burdock	Rare
Artemisia abrotanum L.	#	Southernwood	Rare
Artemisia absinthium L.	#	Absinith	Rare
Artemisia annua L.	#	Annual Wormwood	Rare (old records)
Artemisia biennis L.	#	Biennial Wormwood	Common
Artemisia campestris L.		Wormwood	Uncommon (local along Ottawa River)
Artemisia ludoviciana Nutt.	#	Western Sage	Rare
Artemisia vulgaris L.	#	Mugwort	Common
Bellis perennis L.	#	European Daisy	Rare
Bidens cernuus L.		Nodding Beggarticks	Common
Bidens comosus (A. Gray) Wieg. (B. tripartitus L., p. pt.)		Beggarticks	Uncommon
Bidens discoideus (T. & G.) Britt.		Discoid Beggarticks	RS (7): Stony Swamp CA; Albion Wetland; Magladry Road S; Ont. Land Corp.; Vincent Massey Park; Britannia CA; North Goulbourn Wetland Complex.
Bidens frondosus L.		Large-leaved Beggarticks	Common
Bidens vulgatus Greene (B. frondosus, p.pt.)		Common Beggarticks	RS (10): Coronation Park; Cardinal Creek; Albion Wetland; Poole Creek Wetland Complex; Stittsville; South Gloucester; Champlain Bridge; Core Park, Britannia CA; Core Park.
Brachyactis ciliata (Ledeb.) Ledeb. (Aster brachyactis Blake)	#	Short-rayed Aster	Rare (locally abundant).
Carduus acanthoides L.	#	Plumeless Thistle	Uncommon
Carduus nutans L.	#	Nodding Thistle	Rare
Centaurea biebersteinii DC. (C. maculosa auct., non Lam.)	#	Spotted Knapweed	Uncommon (Locally abundant and spreading aggressively)
Centaurea cyanus L.	#	Bachelor's-button	Rare
Centaurea jacea L.	#	Brown Knapweed	Rare
Centaurea nigra L.	#	Black Knapweed	Rare
Centaurea ×pratensis Thuill. (C. nigra L. x jacea L.)	#	hybrid Knapweed	Rare
Chrysanthemum balsamita L.	#	Costmary	Rare (old records)
Cichorium intybus L.	#	Chickory	Common
Cirsium arvense (L.) Scop.	#	Canada Thistle	Common
Cirsium discolor L.		Pasture Thistle	RS (2): The Burnt Lands; Jinkinson Road.
Cirsium vulgare (Savi) Tenore	#	Bull Thistle	Common
Conyza canadensis (L.) Cronq.		Horseweed	Common
Coreopsis grandiflora Hogg	#	Tickseed	Rare
Coreopsis lanceolata L.	#	Tickseed	Rare
Crepis capillaris (L.) Wallr.	#	Hawk's-beard	Rare
Crepis tectorum L.	#	Hawk's-beard	Uncommon
Doellingeria umbellata (Mill) Nees (Aster umbellatus Mill.)		Flat-topped Aster	Common
Echinacea purpurea (L.)Moench	#	Purple Cone-flower	Rare
Echinops exaltatus Schrad.	#	Globe-thistle	Rare
Echinops sphaerocephalus L.	#	Globe-thistle	Rare
Erechtites hieracifolia (L.) Raf.		Pilewort	Uncommon
Erigeron annuus (L.) Pers.		Daisy Fleabane	Common
Erigeron philadelphicus L.		Philadelphia Fleabane	Common
Erigeron strigosus Muhl.		Spreading Fleabane	Common
Eupatorium maculatum L.		Joe-Pye-weed	Common
Eupatorium perfoliatum L.		Boneset	Common
Eurybia macrophylla (L.) Cass. (Aster macrophyllus L.)		Large-leaved Aster	Common
Euthamia graminifolia (L.) Nutt. (Solidago graminifolia (L.) Salisb.)		Narrow-leaved Goldenrod	Common
Gaillardia xgrandiflora Van Houtte (G. aristata Pursh x pulchella Foug.)	#	Blanket Flower	Rare
Galinsoga quadriradiata Riuz & Pavon (G. ciliata (Raf.) Blake)	#	Quickweed	Common
Gnaphalium macounii Greene (G. viscosum auct., not HBK)		Macoun's Everlasting	RS (6*): Stony Swamp CA*; Mer Bleue CA; The Burnt Lands; Magladry Road S; Petrie Islands; Limestone Road.
Gnaphalium obtusifolium L.		Sweet Everlasting	Uncommon
Gnaphalium uliginosum L.	#	Mud Cudweed	Uncommon
Grindella squarrosa (Pursh) Dunal	#	Gumweed	Rare (old records)
Helenium autumnale L.		Sneezeweed	RS (4): Morris Island (Lavergne Bay*); Baskins Beach; Shirleys Bay (Innis Point*); Crystal Bay [plus adventives].
Helianthus annuus L.	#	Common Sunflower	Uncommon
Helianthus divaricatus L.		Woodland Sunflower	RS (2*): Constance Bay Sand Hills* (common); Morris Island CA.
Helianthus giganteus L.	#	Tall Sunflower	Rare (old records)
Helianthus grosseserratus Martens	#	Saw-tooth Sunflower	Rare
Helianthus maximilianii Schrad.	#	Maximilian's Sunflower	Rare
Helianthus petiolaris Nutt.	#	Plains Sunflower	Rare
Helianthus strumosus L.		Pale-leaved Sunflower	RS (Historic): old records, Billings Bridge; Vincent Massey Park
Helianthus tuberosus L.	#	Jerusalem-artichoke	Uncommon
Helianthus ×laetiflorus Pursh (H. pauciflorus Nutt. x tuberosus L.)	#	Showy Sunflower	Rare
Heliopsis helianthoides (L.) Sw.	#	Ox-eye	Uncommon
Hieracium aurantiacum L.	#	Orange Hawkweed	Common
Hieracium caespitosum Dum. (H. pratense Tausch)	#	King Devil	Uncommon
Hieracium kalmii L. var. fasciculatum (Pursh) Lepage		Hawkweed	RS (4): Mer Bleue CA; Bypass Woods; Rockcliffe Park ESA; Shirleys Bay (Innis Point).
Hieracium kalmii L. var. subintegrum (Lepage) Lepage		Hawkweed	RS (Historic): old record, Merivale
Hieracium kalmii L. var. kalmii (H. canadense auct., non Michx.)		Kalm's Hawkweed	RS (1): Stony Swamp CA.
Hieracium laevigatum Willd. (H. tridentatum, auct., non Fries)	#	Hawkweed	Rare
Hieracium pilosella L.	#	Mouse-ear Hawkweed	Uncommon
Hieracium piloselloides Vill. (H. florentinum All.; H. ×floribundum Wimm. & Grab.)	#	Yellow Hawkweed	Common
Hieracium scabrum Michx.		Rough Hawkweed	RS (8): Marshall Bay; Stony Swamp CA; Pine Grove Forest; Vars West; Magladry Road South; Vars East; Ont. Land Corp.; Carlsbad Springs Southwest.
Hieracium vulgatum Fries (s.l.) (incl. H. lacheneliiGmel.; H. murorum L.)	#	Hawkweed	Rare
Inula helenium L.	#	Elecampane	Common
Iva xanthifolia Nutt.	#	Marsh-elder	Rare
Lactuca biennis (Moench) Fern.		Blue-lettuce	Uncommon
Lactuca canadensis L.		Canada-lettuce	Common
Lactuca hirsuta Muhl. var. sanguinea (Bigel.) Fern.		Hairy-lettuce	RS (1): Stony Swamp CA.
Lactuca muralis (L.) Gaertn.	#	Wall-lettuce	Rare
Lactuca scariola L.	#	Prickly-lettuce	Common
Lapsana communis L.	#	Nipplewort	Uncommon
Leontodon autumnalis L.	#	Fall-dandelion	Rare
Leucanthemum vulgare Lam. (Chrysanthemum leucanthemum L.)	#	Ox-eye Daisy	Common
Liatris spicata (L.) Willd.	#	Blazing-star	Rare; native populations of Provincial Conservation Concern (S3) in Ontario
Matricaria discoidea DC (M. matricarioides auct.)	#	Pineappleweed	Common
Matricaria recutita L. (M. chamomilla L., p.pt.)	#	Wild Chamomile	Rare
Megalodonta beckii (Sprengl) Greene (Bidens beckii Sprengl)0		Aquatic Beggarticks	Uncommon
Oclemena acuminata (Michx.) Nesom (Aster acuminatus Michx.)		Whorled Aster	Uncommon
Petasites frigidus (L.) Fries var. palmatus (Ait.) Cronq. (P. palmatus (Ait.) A. Gray)		Sweet Coltsfoot	Uncommon
Prenanthes alba L.		Rattlesnake-root	RS (2): Mud Pond; Marathon Forest.
Prenanthes altissima L.		Tall White-lettuce	Common
Prenanthes racemosa Michx.		Smooth White-lettuce	RS (Historic): old record, Woodridge.
Ratibida columnifera (Nutt.) Woot.& Stand.	#	Prairie Coneflower	Rare
Rudbeckia hirta L.	[#]	Brown-eyed Susan	Common
Rudbeckia laciniata L. var. laciniata		Cut-leaved Coneflower	RS (Historic): old records, Billings Bridge; Rockcliffe.
Rudbeckia laciniata L. var. hortensis Bailey	#	Goldenglow	Rare
Rudbeckia triloba L.	#	Thin-leaved Coneflower	Rare
Senecio aureus L.		Golden Groundsel	RS (Historic): old record , Carp
Senecio pauperculus Muhl.		Balsam Ragwort	Common
Senecio viscosus L.	#	Fetid Groundsel	Rare
Senecio vulgaris L.	#	Common Groundsel	Uncommon
Silphium perfoliatum L.	#	Cup-plant	Rare [native populations of Provincial Conservation Concern (S2)]
Silybum marianum (L.) Gaertn.	#	Milk Thistle	Rare
Solidago altissima L. (S. canadensis L. var. scabra (Muhl.) T. & G.)		Tall Goldenrod	Common
Solidago caesia L.		Blue-stem Goldenrod	Uncommon
Solidago canadensis L.		Canada Goldenrod	Common
Solidago flexicaulis L.		Zigzag Goldenrod	Uncommon
Solidago gigantea Ait.		Giant Goldenrod	Uncommon
Solidago hispida Muhl. (S. bicolor L. var. concolor T. & G.)		Hairy Goldenrod	Uncommon
Solidago juncea Ait.		Early Goldenrod	Common
Solidago nemoralis Ait.		Old-field Goldenrod	Common
Solidago ptarmicoides (Nees) Boivin (Aster ptarmicoides (Nees) Torr. & Gray; Solidago asteroides Semple)		Upland Goldenrod	Uncommon (locally abundant)
Solidago puberula Nutt.		Downy Goldenrod	Provincial Conservation Concern (S2); RS (Historic): old record (Mer Bleue CA).
Solidago rugosa Mill.		Rough Goldenrod	Common
Solidago squarrosa Muhl. (S. petiolaris Ait.)		Stout Goldenrod	Uncommon [11]
Solidago uliginosa Nutt.		Bog Goldenrod	RS (5*): Marlborough Forest* (Richmond Fen; Phragmites Fen); Long Swamp; Mud Pond; Albion Wetland; Stony Swamp CA.
Sonchus arvensis L.	#	Sow-thistle	Common
Sonchus asper (L.) Hill	#	Spiny Sow-thistle	Common
Sonchus oleraceus L.	#	Annual Sow-thistle	Uncommon
Sonchus palustris L.	#	Marsh Sow-thistle	Rare
Symphyotrichum boreale (Torr. & Gray) Nesom (Aster borealis (T.& G.) Prov.; A. junciformis Rydb.)		Rush Aster	RS (6*): Marlborough Forest* (Richmond Fen; Phragmites Fen); Long Swamp; Mud Pond; Huntley Wetland; Albion Wetland; Poole Creek Wetland.
Symphyotrichum ciliatum (Lindl.) A. & D. Love (Aster ciliolatus Lindl.)		Ciliolate Aster	Common
Symphyotrichum cordifolium (L.) Nesom (Aster cordifolius L.)		Heart-leaved Aster	Common
Symphyotrichum ericoides (L.) Nesom (Aster ericoides L.; Virgulus ericoides (L.) Rev. & Keen)		Heath Aster	RS (7*): Marlborough Forest*; Long Swamp*; Crystal Bay; Pinhey Forest; Baxters Corners; Stittsville; Stittsville West.
Symphyotrichum laeve A. & D. Love x lanceolatum (Willd.) Nesom (Aster laevis L. x lanceolatus Willd.)	#	hybrid Aster	Rare [one parent taxon unknown locally]
Symphyotrichum lanceolatum (Willd.) Nesom (Aster lanceolatus Willd.; A. simplex Willd.)		Panicled Aster	Common
Symphyotrichum lateriflorum (L.) A. & D. Love (Aster lateriflorus (L.) Britt.)		Calico Aster	Common
Symphyotrichum novae-angliae (L.) Nesom (Aster novae-angliae L.; Virgulus novae-angliae (L.) Rev. & Keen)		New England Aster	Common
Symphyotrichum ontarione (Wieg.) Nesom (Aster ontarionis Wieg.; A. lateriflorus (L.) Britt., p.pt.)		Ontario Aster	RS (9): Ont. Land Corp.; Hwy 7 near Dwyer Hill Rd; Marlborough Forest (5 populations); Moores Corners; Baxter Corenrs; Stanleys Corners West; Rideau Third Line*; Barnsdale Woodland; Cambrian Road*.
Symphyotrichum puniceum (L.) Nesom (Aster puniceus L.)		Purple-stemmed Aster	Common
Tanacetum parthenium (L.) Schultz-Bip. (Chrysanthemum parthenium (L.) Bernh.)	#	Fever-few	Rare
Tanacetum vulgare L.	#	Tansy	Uncommon
Taraxacum erythrospermum Andrz. (T. laevigatum (Willd.) DC)	#	Red-seeded Dandelion	Rare
Taraxacum officinale Weber	#	Common Dandelion	Common
Taraxacum palustre (Lyons) DC. (s.l.) (microsp. T. cognatum Kirschner & Stepanek; T. austriacum, auct.)	#	Marsh Dandelion	Uncommon
Tragopogon dubius Scop. (T. major Jacq.)	#	Goat's-beard	Common
Tragopogon porrifolius L.	#	Oysterplant	Rare
Tragopogon pratensis L.	#	Goat's-beard	Common
Tripleurospermum inodorum (L.) Schultz-Bipont (Matricaria perforata Merat)	#	Scentless Chamomile	Uncommon
Tussilago farfara L.	#	Colts-foot	Uncommon (spreading common).
Xanthium strumarium L.		Cocklebur	Common

2.0 Literature and Document References

The following includes representative literature and reports (publicly filed inventory reports) which review floristic data for the City of Ottawa (former Region of Ottawa-Carleton) since 1970. The list excludes references discussing single sites, species or populations when they are also covered by other more comprehensive treatments and/ or are represented by voucher specimens in the herbaria examined for City of Ottawa material (TRT, DAO, Dfb, CAN).

Argus, G. W. et al. 1982-1987. Atlas of the Rare Vascular Plants of Ontario, Parts 1 - 4. Botany Division, National Museum of Natural Sciences, Ottawa.

[Boyd, B. and D. G. Cuddy]. 1984. Constance Bay Sand Hills Vegetation Study. Ontario Ministry of Natural Resources, Huntsville.

Britton, D. M. and D. F. Brunton. 1989. A New Isoetes Hybrid (Isoetes echinospora x riparia) for Canada. Canadian Journal of Botany 67: 2995-3002.

Brownell, V. R. and C. S. Blaney. 1997. Summary natural areas reports for natural areas west of Rideau River (500 series). Planning and Development Approvals Department Report 28-08d, Regional Municipality of Ottawa-Carleton, Ottawa.

Brownell, V. and M. H. Larson. 1995. An evaluation framework for natural areas in the Regional Municipality of Ottawa-Carleton, volume 1. Planning and Property Services Dept., Regional Municipality of Ottawa-Carleton, Ottawa.

Brunton, D. F. 1980. An Ecological Inventory of the Stony Swamp Conservation Area, Ottawa-Carleton, Ontario. Conservation Studies 5, National Capital Commission, Ottawa.

Brunton, D. F. 1980. An Ecological Inventory of the Shirleys Bay Study Area, Ottawa-Carleton, Ontario. Conservation Studies 1, National Capital Commission, Ottawa.

Brunton, D. F. 1983. An Ecological Inventory of the Green's Creek Sector, National Capital Commission Greenbelt, Ottawa-Carleton, Ontario. Conservation Studies 15, National Capital Commission, Ottawa.

Brunton, D. F. 1984. The Vegetation and Flora of the Mer Bleue Conservation Area, National Capital Commission Greenbelt, Ottawa-Carleton, Ontario. Conservation Studies 22, National Capital Commission, Ottawa.

Brunton, D. F. 1985. Recent Significant Plant Records from the Ottawa District, Part I: Clubmoss Family to Sedge Family, Part II: Pickerelweed Family to Bean Family; Part III: Wood-sorrel Family to Composite Family. Trail & Landscape 19: 27-47; 96-112; 155-175.

Brunton, D. F. 1986. A Life Science Inventory of the Burnt Lands, Lanark County/ Regional Municipality of Ottawa-Carleton, Ontario. [Unpublished report, Ontario Ministry of Natural Resources], , Daniel Brunton Consulting Services, Ottawa.

Brunton, D. F. 1992. Natural Environment Inventory of the Kanata Lakes Study Area, Kanata, Ontario. [Unpublished report], Daniel Brunton Consulting Services, Ottawa.

Brunton, D. F. 1992. South March Highlands Study Area:Natural Environment Assessment. [Unpublished report], Daniel Brunton Consulting Services, Ottawa.

Brunton, D. F. 1993. Ecologically Significant Areas (ESAs) Within the City of Ottawa. [Unpublished report, City of Ottawa], Daniel Brunton Consulting Services, Ottawa.

Brunton, D. F. 1997. Summary natural areas reports for natural areas west of Rideau River (500 series). Planning and Development Approvals Department Report 28-08d, Regional Municipality of Ottawa-Carleton, Ottawa.

Brunton, D. F. 1997. White Oak (Quercus alba) in southeastern Ontario and the Ottawa District. Trail & Landscape 31: 100-108.

Brunton, D. F. 1998. Distributionally significant vascular plants of the Region of Ottawa-Carleton. Planning and Development Approvals Department Report #28-09, Regional Municipality of Ottawa-Carleton, Ottawa.

Brunton, D. F. 1999. Natural environment inventory and interpretive concepts assessment of the Petrie Islands study area. [Unpublished report for City of Cumberland], Daniel Brunton Consulting Services, Ottawa.

Brunton, D. F. 2004.Vascular flora of the National Capital Greenbelt (2003). Capital Land and Parks, National Capital Commission, Ottawa.

Brunton, D. F. and D. M. Britton. 1999. Quillworts (Isoetes) of the Ottawa District. Trail & Landscape 33: 131-136.

Brunton, D. F. and B. M. Di Labio. 1997. The flora of Ottawa River emergent beaches. Trail & Landscape 31: 109-123.

Catling, P. M., A. Sinclair and D. Cuddy. 2002. Plant community composition and relationships of disturbed and undisturbed alvar woodland. The Canadian Field-Naturalist 116: 571-579.

Darbyshire, S. 1982. Some Additions and Annotations to the Checklist of Vascular Plants of the Ottawa District. Trail & Landscape 16: 214-220.

Darbyshire, S. 1987. More on the Bladdernut Shrub. Trail & Landscape 21: 26-28.

Darbyshire, S. 1990. Conyza ramosissima, another new weed in the Ottawa District. Trail & Landscape 24: 94-98.

Darbyshire, S. and J. Cayouette.1994. Identification of the species in the Panicum capillare complex (Poaceae) from eastern Canada and adjacent New York State. Canadian Journal of Botany 73: 333-348.

Darbyshire, S. J., M. J. Oldham and D. A. Sutherland. 1987. Some New and Interesting Vascular Plants in the Ottawa District. Trail & Landscape 21: 135-136.

Darbyshire, S. and S. Thomson. 2004. Mosquito Fern in Ottawa. Trail & Landscape 38: 21-23.

Dickson, H. L. and S. J. Darbyshire. 1979. Biological Inventory of 23 Areas in the Ottawa Region (Two Volumes). National Capital Commission, Ottawa.

Dobson, I. and P. M. Catling. 1983. Pondweeds (Potamogeton) of the Ottawa District. Trail & Landscape 17: 79-99.

Dore, W. G. 1959. Grasses of the Ottawa District. Publication 1049, Research Branch, Canada Department of Agriculture, Ottawa.

Dore, W. G. and J. McNeill. 1980. Grasses of Ontario. Research Monograph 26, Agriculture Canada, Ottawa.

Dugal, A. 1982. Bog Bedstraw (Galium labradoricum) in Ottawa District Fens. Trail & Landscape 16: 126-130.

Dugal, A. 1989. South Gloucester Study Area Update: 1978-1988. Trail & Landscape 23: 4-14.

Dugal, A. 1990. Albion Road Wetlands Part 1. Trail & Landscape 24: 56-78.

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ATTACHMENT 1 - INDEX to Vascular Plant Genera

Genus	Family	Page No.
Abies	PINACEAE (Pine Family)	10
Abutilon	MALVACEAE (Mallow Family)	61
Acalypha	EUPHORBIACEAE (Spurge Family)	59
Acer	ACERACAE (Maple Family)	60
Achillea	ASTERACEAE (Aster Family)	80
Acinos	LAMIACEAE (Mint Family)	72
Acorus	ACORACEAE (Sweet-flag Family)	30
Actaea	RANUNCULACEAE (Crowfoot Family)	45
Adiantum	PTERIDACEAE (Maidenhair Fern Family)	8
Adlumia	FUMARIACEAE (Fumitory Family)	47
Aegopodium	APIACEAE (Carrot Family)	66
Aesculus	HIPPOCASTANACEAE (Horse-chestnut Family)	61
Agalinis	SCROPHULARIACEAE (Figwort Family)	75
Agastache	LAMIACEAE (Mint Family)	75
Ageratina	ASTERACEAE (Aster Family)	80
Agrimonia	ROSACEAE (Rose Family)	52
Agropyron	POACEAE (Grass Family)	13
Agrostemma	CARYOPHYLLACEAE (Pink Family)	43
Agrostis	POACEAE (Grass Family)	13
Ailanthus	SIMAROUBACEAE (Quassia Family)	58
Ajuga	LAMIACEAE (Mint Family)	72
Alcea	MALVACEAE (Mallow Family)	61
Alisma	ALISMATACEAE (Water-plantain Family)	13
Alliaria	BRASSICACEAE (Mustard Family)	48
Allium	LILIACEAE (Lily Family)	32
Alnus	BETULACEAE (Birch Family)	38
Alopecurus	POACEAE (Grass Family)	14
Althaea	MALVACEAE (Mallow Family)	61
Alyssum	BRASSICACEAE (Mustard Family)	48
Amaranthus	AMARANTHACEAE (Amaranth Family)	42
Ambrosia	ASTERACEAE (Aster Family)	80
Amelanchier	ROSACEAE (Rose Family)	52
Amerorchis	ORCHIDACEAE (Orchid Family)	34
Amphicarpaea	FABACEAE (Bean Family)	56
Anaphalis	ASTERACEAE (Aster Family)	80
Anagallis	PRIMULACEAE (Primrose Family)	69
Andromeda	ERICACEAE (Heath Family)	68
Andropogon	POACEAE (Grass Family)	14
Anemone	RANUNCULACEAE (Crowfoot Family)	45
Anethum	APIACEAE (Carrot Family)	66
Antennaria	ASTERACEAE (Aster Family)	80
Anthemis	ASTERACEAE (Aster Family)	80
6	APIACEAE (Carrot Family)	60
Anthoxanthum	POACEAE (Grass Family)	14
Apios	FABACEAE (Bean Family)	56
Aplectrum	ORCHIDACEAE (Orchid Family)	34
Apocynum	APOCYNACEAE (Dogbane Family)	70
Aquilegia	RANUNCULACEAE (Crowfoot Family)	46
Arabidopsis	BRASSICACEAE (Mustard Family)	48
Arabis	BRASSICACEAE (Mustard Family)	48
Aralia	ARALIACEAE (Ginseng Family)	65
Arceuthobium	LORANTHACEAE (Mistletoe Family)	39
Arctium	ASTERACEAE (Aster Family)	81
Arctostaphylos	ERICACEAE (Heath Family)	68
Arenaria	CARYOPHYLLACEAE (Pink Family)	43
Arethusa	ORCHIDACEAE (Orchid Family)	34
Argentina	ROSACEAE (Rose Family)	52
Arisaema	ARACEAE (Arum Family)	30
Armoracia	BRASSICACEAE (Mustard Family)	48
Arrhenatherum	POACEAE (Grass Family)	14
Artemisia	ASTERACEAE (Aster Family)	81
Asarum	ARISTOLOCHIACEAE (Ginger Family)	39
Asclepias	ASCLEPIADACEAE (Milkweed Family)	70
Asparagus	LILIACEAE (Lily Family)	32
Asperugo	BORAGINACEAE (Borage Family)	71
Asplenium	ASPLENIACEAE (Spleenwort Fern Family)	8
Aster	ASTERACEAE (Aster Family)	80
Astragalus	FABACEAE (Bean Family)	56
Athyrium	DRYOPTERIDACEAE (Woodfern Family)	8
Atriplex	CHENOPODIACEAE (Goosefoot Family)	38
Avena	POACEAE (Grass Family)	14
Axyris	CHENOPODIACEAE (Goosefoot Family)	42
Azolla	AZOLLACEAE (Mosquito Fern Family)	10
Barbarea	BRASSICACEAE (Mustard Family)	48
Beckmannia	POACEAE (Grass Family)	14
Bellis	ASTERACEAE (Aster Family)	81
Berberis	BERBERIDACEAE (Barberry Family)	47
Berteroa	BRASSICACEAE (Mustard Family)	48
Betula	BETULACEAE (Birch Family)	38
Bidens	ASTERACEAE (Aster Family)	81
Boehmeria	URTICACEAE (Nettle Family)	39
Bolboschoenus	CYPERACEAE (Sedge Family)	21
Botrychium	OPHIOGLOSSACEAE (Grapefern Family)	7
Brachyactis	ASTERACEAE (Aster Family)	82
Brachyelytrum	POACEAE (Grass Family)	14
Brasenia	CABOMBACEAE (Water-shield Family)	45
Brassica	BRASSICACEAE (Mustard Family)	43
Briza	POACEAE (Grass Family)	14
Bromus	POACEAE (Grass Family)	14
Bulbostylis	CYPERACEAE (Sedge Family)	21
Butomus	BUTOMACEAE (Flowering Rush Family)	13
Calamagrostis	POACEAE (Grass Family)	15
Calla	ARACEAE (Arum Family)	30
Callitriche	CALLITRICHACEAE (Water-startwort Family)	59
Calopogon	ORCHIDACEAE (Orchid Family)	34
Caltha	RANUNCULACEAE (Crowfoot Family)	46
Calypso	ORCHIDACEAE (Orchid Family)	34
Calystegia	CONVOLVULACEAE (Morning-glory Family)	70
Camelina	BRASSICACEAE (Mustard Family)	48
Campanula	CAMPANULACEAE (Bellflower Family)	80
Cannabis	CANNABACEAE (Hemp Family)	39
Capsella	BRASSICACEAE (Mustard Family)	48
Caragana	FABACEAE (Bean Family)	56
Cardamine	BRASSICACEAE (Mustard Family)	48
Cardaria	BRASSICACEAE (Mustard Family)	49
Carduus	ASTERACEAE (Aster Family)	82
Carex	CYPERACEAE (Sedge Family)	21
Carpinus	BETULACEAE (Birch Family)0	38
Carya	JUGLANDACEAE (Hickory Family)	38
Carum	APIACEAE (Carrot Family)	66
Caulophyllum	BERBERIDACEAE (Barberry Family)	47
Ceanothus	RHAMNACEAE (Buckthorn Family)	61
Celastrus	CELASTRACEAE (Staff-tree Family)	60
Celtis	ULMACEAE (Elm Family)	38
Centaurea	ASTERACEAE (Aster Family)	82
Centaurium	GENTIANACEAE (Gentian Family)	69
Cephalanthus	RUBIACEAE (Bedstraw Family)	77
Cerastium	CARYOPHYLLACEAE (Pink Family)	43
Ceratophyllum	CERATOPHYLLACEAE (Hornwort Family)	45
Chaenorrhinum	SCROPHULARIACEAE (Figwort Family)	75
Chamaedaphne	ERICACEAE (Heath Family)	64
Chamaesyce	EUPHORBIACEAE (Spurge Family)	59
Chelidonium	PAPAVERACEAE (Poppy Family)	47
Chelone	SCROPHULARIACEAE (Figwort Family)	75
Chenopodium	CHENOPODIACEAE (Goosefoot Family)	42
Chimaphila	PYROLACEAE (Wintergreen Family)	67
Chionodoxa	LILIACEAE (Lily Family)	32
Chrysanthemum	ASTERACEAE (Aster Family)	82
Chrysosplenium	SAXIFRAGACEAE (Saxifrage Family)	51
Cicuta	APIACEAE (Carrot Family)	58
Cinna	POACEAE (Grass Family)	15
Circaea	ONAGRACEAE (Evening-primrose Family)	64
Cladium	CYPERACEAE (Sedge Family)	27
Cichorium	ASTERACEAE (Aster Family)	82
Cirsium	ASTERACEAE (Aster Family)	82
Claytonia	PORTULACACEAE (Purslane Family)	43
Clematis	RANUNCULACEAE (Crowfoot Family)	46
Cleome	CAPPARIDACEAE (Caper Family)	48
Clinopodium	LAMIACEAE (Mint Family)	72
Clintonia	LILIACEAE (Lily Family)	32
Coeloglossum	ORCHIDACEAE (Orchid Family)	34
Collomia	POLEMONIACEAE (Phlox Family)	71
Comandra	SANTALACEAE (Sandalwood Family)	39
Comarum	ROSACEAE (Rose Family)	52
Commelina	COMMELINACEAE (Spiderwort Family)	30
Comptonia	MYRICACEAE (Bayberry Family)	37
Conium	APIACEAE (Carrot Family)	66
Conringia	BRASSICACEAE (Mustard Family)	49
Convallaria	LILIACEAE (Lily Family)	32
Convolvulus	CONVOLVULACEAE (Morning-glory Family)	70
Conyza	ASTERACEAE (Aster Family)	82
Coptis	RANUNCULACEAE (Crowfoot Family)	46
Corallorhiza	ORCHIDACEAE (Orchid Family)	34
Coreopsis	ASTERACEAE (Aster Family)	82
Coriandrum	APIACEAE (Carrot Family)	66
Cornus	CORNACEAE (Dogwood Family)	67
Coronilla	FABACEAE (Bean Family)	56
Corydalis	FUMARIACEAE (Fumitory Family)	47
Corylus	BETULACEAE (Birch Family)	38
Cotoneaster	ROSACEAE (Rose Family)	52
Crataegus	ROSACEAE (Rose Family)	52
Crepis	ASTERACEAE (Aster Family)	82
Cryptogramma	PTERIDACEAE (Maidenhair Fern Family)	8
Cryptotaenia	APIACEAE (Carrot Family)	66
Cuscuta	CUSCUTACEAE (Dodder Family)	71
Cycloloma	CHENOPODIACEAE (Goosefoot Family)	42
Cymbalaria	SCROPHULARIACEAE (Figwort Family)	46
Cynanchum	ASCLEPIADACEAE (Milkweed Family)	70
Cynoglossum	BORAGINACEAE (Borage Family)	71
Cynosurus	POACEAE (Grass Family)	15
Cyperus	CYPERACEAE (Sedge Family)	26
Cypripedium	ORCHIDACEAE (Orchid Family)	34
Cystopteris	DRYOPTERIDACEAE (Woodfern Family)	8
Dactylis	POACEAE (Grass Family)	15
Daisiphora	ROSACEAE (Rose Family)	53
Dalibarda	ROSACEAE (Rose Family)	53
Danthonia	POACEAE (Grass Family)	15
Daphne	THYMELAEACEAE (Mezereum Family)	64
Datura	SOLANACEAE (Nightshade Family)	74
Daucus	APIACEAE (Carrot Family)	66
Decodon	LYTHRACEAE (Loosestrife Family)	64
Dennstaedtia	DENNSTAEDTIACEAE (Bracken Fern Family)	8
Deparia	DRYOPTERIDACEAE (Woodfern Family)	9
Deschampsia	POACEAE (Grass Family)	15
Descurainia	BRASSICACEAE (Mustard Family)	49
Desmodium	FABACEAE (Bean Family)	56
Dianthus	CARYOPHYLLACEAE (Pink Family)	43
Dicentra	FUMARIACEAE (Fumitory Family)	48
Dichanthelium	POACEAE (Grass Family)	14
Diervilla	CAPRIFOLIACEAE (Honeysuckle Family)	70
Digitaria	POACEAE (Grass Family)	15
Diphasiastrum	LYCOPODIACEAE (Clubmoss Family)	5
Diplazium	DRYOPTERIDACEAE (Woodfern Family)	8
Diplotaxis	BRASSICACEAE (Mustard Family)	49
Dipsacus	DIPSACACEAE (Teasel Family)	79
Dirca	THYMELAEACEAE (Mezereum Family)	64
Disiphora	ROSACEAE (Rose Family)	48
Doellingeria	ASTERACEAE (Aster Family)	82
Draba	BRASSICACEAE (Mustard Family)	49
Dracocephalum	LAMIACEAE (Mint Family)	72
Drosera	DROSERACEAE (Sundew Family)	50
Dryopteris	DRYOPTERIDACEAE (Woodfern Family)	9
Dulichium	CYPERACEAE (Sedge Family)	28
Dysphania	CHENOPODIACEAE (Goosefoot Family)	42
Echinacea	ASTERACEAE (Aster Family)	82
Echinochloa	POACEAE (Grass Family)	16
Echinocystis	CUCURBITACEAE (Gourd Family)	79
Echinops	ASTERACEAE (Aster Family)	82
Echium	BORAGINACEAE (Borage Family)	71
Elaeagnus	ELAEAGNACEAE (Oleaster Family)	64
Elatine	ELATINACEAE (Waterwort Family)	62
Eleocharis	CYPERACEAE (Sedge Family)	28
Elodea	HYDROCHARITACEAE (Frog's-bit Family)	13
Elymus	POACEAE (Grass Family)	16
Epifagus	OROBANCHACEAE (Broom-rape Family)	76
Epigaea	ERICACEAE (Heath Family)	68
Epilobium	ONAGRACEAE (Evening-primrose Family)	64
Epipactis	ORCHIDACEAE (Orchid Family)	34
Equisetum	EQUISETACEAE (Horsetail Family)	5
Eragrostis	POACEAE (Grass Family)	17
Erigeron	ASTERACEAE (Aster Family)	83
Eriocaulon	ERIOCAULACEAE (Pipewort Family)	30
Eriophorum	CYPERACEAE (Sedge Family)	28
Erodium	GERANIACEAE (Geranium Family)	58
Eruca	BRASSICACEAE (Mustard Family)	49
Erucastrum	BRASSICACEAE (Mustard Family)	49
Eryngium	APIACEAE (Carrot Family)	66
Erysimum	BRASSICACEAE (Mustard Family)	49
Erythronium	LILIACEAE (Lily Family)	32
Euonymus	CELASTRACEAE (Staff-tree Family)	60
Eupatorium	ASTERACEAE (Aster Family)	80
Euphorbia	EUPHORBIACEAE (Spurge Family)	53
Euphrasia	SCROPHULARIACEAE (Figwort Family)	75
Eurybia	ASTERACEAE (Aster Family)	83
Euthamia	ASTERACEAE (Aster Family)	83
Fagopyrum	POLYGONACEAE (Knotweed Family)	40
Fagus	FAGACEAE (Oak Family)	38
Fallopia	POLYGONACEAE (Knotweed Family)	40
Filipendula	ROSACEAE (Rose Family)	53
Fimbristylis	CYPERACEAE (Sedge Family)	29
Fragaria	ROSACEAE (Rose Family)	53
Fraxinus	OLEACEAE (Olive Family)	69
Fumaria	FUMARIACEAE (Fumitory Family)	47
Gaillardia	ASTERACEAE (Aster Family)	83
Galanthus	AMARYLLIDACEAE (Amaryllis Family)	33
Galearis	ORCHIDACEAE (Orchid Family)	35
Galega	FABACEAE (Bean Family)	56
Galeopsis	LAMIACEAE (Mint Family)	72
Galinsoga	ASTERACEAE (Aster Family)	83
Galium	RUBIACEAE (Bedstraw Family)	77
Gaultheria	ERICACEAE (Heath Family)	68
Gaylussacia	ERICACEAE (Heath Family)	68
Gentiana	GENTIANACEAE (Gentian Family)	69
Gentianopsis	GENTIANACEAE (Gentian Family)	69
Geranium	GERANIACEAE (Geranium Family)	58
Geum	ROSACEAE (Rose Family)	53
Glechoma	LAMIACEAE (Mint Family)	72
Gleditsia	FABACEAE (Bean Family)	56
Glyceria	POACEAE (Grass Family)	17
Gnaphalium	ASTERACEAE (Aster Family)	83
Goodyera	ORCHIDACEAE (Orchid Family)	35
Gratiola	SCROPHULARIACEAE (Figwort Family)	75
Grindella	ASTERACEAE (Aster Family)	83
Gymnocarpium	DRYOPTERIDACEAE (Woodfern Family)	9
Gypsophila	CARYOPHYLLACEAE (Pink Family)	44
Hackelia	BORAGINACEAE (Borage Family)	71
Halenia	GENTIANACEAE (Gentian Family)	70
Hamamelis	HAMAMELIDACEAE (Witch-hazel Family)	52
Hedeoma	LAMIACEAE (Mint Family)	73
Helenium	ASTERACEAE (Aster Family)	83
Helianthemum	CISTACEAE (Rock-rose Family)	62
Helianthus	ASTERACEAE (Aster Family)	83
Heliopsis	ASTERACEAE (Aster Family)	84
Hemerocallis	LILIACEAE (Lily Family)	32
Heracleum	APIACEAE (Carrot Family)	60
Hesperis	BRASSICACEAE (Mustard Family)	49
Hieracium	ASTERACEAE (Aster Family)	84
Hordeum	POACEAE (Grass Family)	18
Hudsonia	CISTACEAE (Rock-rose Family)	62
Humulus	CANNABACEAE (Hemp Family)	39
Huperzia	LYCOPODIACEAE (Clubmoss Family)	5
Hydrocharis	HYDROCHARITACEAE (Frog's-bit Family)	13
Hydrocotyle	APIACEAE (Carrot Family)	66
Hydrophyllum	HYDROPHYLLACEAE (Waterleaf Family)	71
Hypericum	HYPERICACEAE (St. John's-wort Family)	62
Hyssopus	LAMIACEAE (Mint Family)	73
Ilex	AQUIFOLIACEAE (Holly Family)	60
Impatiens	BALSAMINACEAE (Touch-me-not Family)	61
Inula	ASTERACEAE (Aster Family)	84
Ipomoea	CONVOLVULACEAE (Morning-glory Family)	71
Iris	IRIDACEAE (Iris Family)	33
Isoetes	ISOETACEAE (Quillwort Family)	6
Iva	ASTERACEAE (Aster Family)	84
Juglans	JUGLANDACEAE (Hickory Family)	38
Juncus	JUNCACEAE (Rush Family)	30
Juniperus	CUPRESSACEAE (Cypress Family)	11
Kalmia	ERICACEAE (Heath Family)	62
Kochia	CHENOPODIACEAE (Goosefoot Family)	42
Lactuca	ASTERACEAE (Aster Family)	84
Laportea	URTICACEAE (Nettle Family)	39
Lappula	BORAGINACEAE (Borage Family)	71
Lapsana	ASTERACEAE (Aster Family)	84
Larix	PINACEAE (Pine Family)	10
Lathyrus	FABACEAE (Bean Family)	56
Lavatera	MALVACEAE (Mallow Family)	62
Lechea	CISTACEAE (Rock-rose Family)	63
Ledum	ERICACEAE (Heath Family)	68
Leersia	POACEAE (Grass Family)	18
Lemna	LEMNACEAE (Duckweed Family)	30
Leontodon	ASTERACEAE (Aster Family)	84
Leonurus	LAMIACEAE (Mint Family)	73
Lepidium	BRASSICACEAE (Mustard Family)	50
Lespedeza	FABACEAE (Bean Family)	57
Leucanthemum	ASTERACEAE (Aster Family)	85
Leucophysalis	SOLANACEAE (Nightshade Family)	74
Liatris	ASTERACEAE (Aster Family)	85
Lilium	LILIACEAE (Lily Family)	32
Linaria	SCROPHULARIACEAE (Figwort Family)	75
Lindernia	SCROPHULARIACEAE (Figwort Family)	75
Linnaea	CAPRIFOLIACEAE (Honeysuckle Family)	78
Linum	LINACEAE (Flax Family)	58
Liparis	ORCHIDACEAE (Orchid Family)	35
Listera	ORCHIDACEAE (Orchid Family)	35
Lithospermum	BORAGINACEAE (Borage Family)	71
Littorella	PLANTAGINACEAE (Plantain Family)	77
Lobelia	LOBELIACEAE (Lobelia Family)	80
Lolium	POACEAE (Grass Family)	18
Lonicera	CAPRIFOLIACEAE (Honeysuckle Family)	78
Lotus	FABACEAE (Bean Family)	57
Ludwigia	ONAGRACEAE (Evening-primrose Family)	65
Lupinus	FABACEAE (Bean Family)	57
Luzula	JUNCACEAE (Rush Family)	31
Lychnis	CARYOPHYLLACEAE (Pink Family)	44
Lycium	SOLANACEAE (Nightshade Family)	74
Lycopersicum	SOLANACEAE (Nightshade Family)	74
Lycopodiella	LYCOPODIACEAE (Clubmoss Family)	5
Lycopodium	LYCOPODIACEAE (Clubmoss Family)	5
Lycopus	LAMIACEAE (Mint Family)	73
Lysimachia	PRIMULACEAE (Primrose Family)	69
Lythrum	LYTHRACEAE (Loosestrife Family)	64
Maianthemum	LILIACEAE (Lily Family)	32
Malaxis	ORCHIDACEAE (Orchid Family)	35
Malus	ROSACEAE (Rose Family)	54
Malva	MALVACEAE (Mallow Family)	61
Matricaria	ASTERACEAE (Aster Family)	85
Matteuccia	DRYOPTERIDACEAE (Woodfern Family)	10
Medeola	LILIACEAE (Lily Family)	33
Medicago	FABACEAE (Bean Family)	57
Megalodonta	ASTERACEAE (Aster Family)	85
Melampyrum	SCROPHULARIACEAE (Figwort Family)	75
Melilotus	FABACEAE (Bean Family)	57
Menispermum	MENISPERMACEAE (Moonseed Family)	47
Mentha	LAMIACEAE (Mint Family)	73
Menyanthes	MENYANTHACEAE (Buckbean Family)	70
Milium	POACEAE (Grass Family)	18
Mimulus	SCROPHULARIACEAE (Figwort Family)	75
Minuartia	CARYOPHYLLACEAE (Pink Family)	44
Mirabilis	NYCTAGINACEAE (Four-o'clock Family)	43
Miscanthus	POACEAE (Grass Family)	18
Mitchella	RUBIACEAE (Bedstraw Family)	78
Mitella	SAXIFRAGACEAE (Saxifrage Family)	51
Moehringia	CARYOPHYLLACEAE (Pink Family)	44
Molinia	POACEAE (Grass Family)	18
Mollugo	MOLLUGINACEAE (Carpetweed Family)	43
Monarda	LAMIACEAE (Mint Family)	73
Moneses	PYROLACEAE (Wintergreen Family)	67
Monotropa	PYROLACEAE (Wintergreen Family)	67
Morus	MORACEAE (Mulberry Family)	39
Muhlenbergia	POACEAE (Grass Family)	18
Muscaria	LILIACEAE (Lily Family)	33
Myosotis	BORAGINACEAE (Borage Family)	71
Myrica	MYRICACEAE (Bayberry Family)	37
Myriophyllum	HALORAGIDACEAE (Water-milfoil Family)	65
Najas	NAJADACEAE (Naiad Family)	12
Narcissus	AMARYLLIDACEAE (Amaryllis Family)	33
Nemopanthus	AQUIFOLIACEAE (Holly Family)	60
Neobeckia	BRASSICACEAE (Mustard Family)	50
Nepeta	LAMIACEAE (Mint Family)	73
Neslia	BRASSICACEAE (Mustard Family)	50
Nicandra	SOLANACEAE (Nightshade Family)	74
Nuphar	NYMPHAEACEAE (Waterlily Family)	45
Nymphaea	NYMPHAEACEAE (Waterlily Family)	45
Nymphoides	MENYANTHACEAE (Buckbean Family)	70
Oclemena	ASTERACEAE (Aster Family)	85
Oenothera	ONAGRACEAE (Evening-primrose Family)	65
Omphalodes	BORAGINACEAE (Borage Family)	72
Onoclea	DRYOPTERIDACEAE (Woodfern Family)	10
Ophioglossum	OPHIOGLOSSACEAE (Grapefern Family)	7
Opuntia	CACTACEAE (Cactus Family)	64
Origanum	LAMIACEAE (Mint Family)	73
Ornithogalum	LILIACEAE (Lily Family)	33
Orobanche	OROBANCHACEAE (Broom-rape Family)	76
Orthilia	PYROLACEAE (Wintergreen Family)	67
Oryzopsis	POACEAE (Grass Family)	19
Osmorhiza	APIACEAE (Carrot Family)	66
Osmunda	OSMUNDACEAE (Flowering-fern Family)	7
Ostrya	BETULACEAE (Birch Family)	38
Oxalis	OXALIDACEAE (Wood-sorrel Family)	58
Paeonia	Paeoniaceae (Paeonia Family)	47
Panax	ARALIACEAE (Ginseng Family)	65
Panicum	POACEAE (Grass Family)	15
Papaver	PAPAVERACEAE (Poppy Family)	47
Parthenocissus	VITACEAE (Grape Family)	61
Pastinaca	APIACEAE (Carrot Family)	66
Pedicularis	SCROPHULARIACEAE (Figwort Family)	75
Penstemon	SCROPHULARIACEAE (Figwort Family)	75
Penthorum	CRASSULACEAE (Stonecrop Family)	51
Persicaria	POLYGONACEAE (Knotweed Family)	40
Petasites	ASTERACEAE (Aster Family)	85
Phalaris	POACEAE (Grass Family)	19
Phaseolus	FABACEAE (Bean Family)	57
Phegopteris	THELYPTERIDACEAE (Marsh Fern Family)	8
Philadelphus	SAXIFRAGACEAE (Saxifrage Family)	51
Phlox	POLEMONIACEAE (Phlox Family)	71
Photinia	ROSACEAE (Rose Family)	54
Phragmites	POACEAE (Grass Family)	12
Phryma	PHRYMACEAE (Lopseed Family)	77
Physalis	SOLANACEAE (Nightshade Family)	74
Physocarpus	ROSACEAE (Rose Family)	54
Physostegia	LAMIACEAE (Mint Family)	73
Picea	PINACEAE (Pine Family)	10
Pilea	URTICACEAE (Nettle Family)	39
Pimpinella	APIACEAE (Carrot Family)	66
Pinus	PINACEAE (Pine Family)	10
Pisum	FABACEAE (Bean Family)	57
Plantago	PLANTAGINACEAE (Plantain Family)	77
Platanthera	ORCHIDACEAE (Orchid Family)	35
Poa	POACEAE (Grass Family)	13
Podostemum	PODOSTEMACEAE (River-weed Family)	51
Pogonia	ORCHIDACEAE (Orchid Family)	36
Polycnemum	CHENOPODIACEAE (Goosefoot Family)	42
Polygala	POLYGALACEAE (Milkwort Family)	58
Polygonatum	LILIACEAE (Lily Family)	33
Polygonella	POLYGONACEAE (Knotweed Family)	41
Polygonum	POLYGONACEAE (Knotweed Family)	40
Polypodium	POLYPODIACEAE (Polypody Fern Family)	10
Polystichum	DRYOPTERIDACEAE (Woodfern Family)	10
Pontederia	PONTEDERIACEAE (Pickerelweed Family)	30
Populus	SALICACEAE (Willow Family)	36
Portulaca	PORTULACACEAE (Purslane Family)	43
Potamogeton	POTAMOGETONACEAE (Pondweed Family)	11
Potentilla	ROSACEAE (Rose Family)	52
Prenanthes	ASTERACEAE (Aster Family)	85
Proserpinaca	HALORAGIDACEAE (Water-milfoil Family)	65
Prunella	LAMIACEAE (Mint Family)	73
Prunus	ROSACEAE (Rose Family)	54
Pteridium	DENNSTAEDTIACEAE (Bracken Fern Family)	8
Pterospora	PYROLACEAE (Wintergreen Family)	67
Puccinellia	POACEAE (Grass Family)	29
Pycnanthemum	LAMIACEAE (Mint Family)	73
Pyrola	PYROLACEAE (Wintergreen Family)	67
Quercus	FAGACEAE (Oak Family)	38
Ranunculus	RANUNCULACEAE (Crowfoot Family)	45
Rapistrum	BRASSICACEAE (Mustard Family)	49
Ratibida	ASTERACEAE (Aster Family)	84
Rhamnus	RHAMNACEAE (Buckthorn Family)	60
Rhaphanus	BRASSICACEAE (Mustard Family)	49
Rheum	POLYGONACEAE (Knotweed Family)	41
Rhus	ANACARDIACEAE (Cashew Family)	59
Rhynchospora	CYPERACEAE (Sedge Family)	28
Ribes	GROSSULARIACAEAE (Currant Family)	51
Robinia	FABACEAE (Bean Family)	56
Rorripa	BRASSICACEAE (Mustard Family)	49
Rosa	ROSACEAE (Rose Family)	51
Rubus	ROSACEAE (Rose Family)	54
Rudbeckia	ASTERACEAE (Aster Family)	84
Rumex	POLYGONACEAE (Knotweed Family)	41
Sagina	CARYOPHYLLACEAE (Pink Family)	43
Sagittaria	ALISMATACEAE (Water-plantain Family)	13
Salix	SALICACEAE (Willow Family)	36
Salsola	CHENOPODIACEAE (Goosefoot Family)	42
Salvia	LAMIACEAE (Mint Family)	73
Sambucus	CAPRIFOLIACEAE (Honeysuckle Family)	77
Samolus	PRIMULACEAE (Primrose Family)	68
Sanguinaria	PAPAVERACEAE (Poppy Family)	47
Sanicula	APIACEAE (Carrot Family)	66
Saponaria	CARYOPHYLLACEAE (Pink Family)	43
Sarracenia	SARACENIACEAE (Pitcher-plant Family)	50
Saururus	SAURURACEAE (Lizard's-tail Family)	36
Saxifraga	SAXIFRAGACEAE (Saxifrage Family)	50
Scheuchzeria	SCHEUCHZERIACEAE (Nut-grass Family)	12
Schizachne	POACEAE (Grass Family)	19
Schizachyrium	POACEAE (Grass Family)	20
Schoenoplectus	CYPERACEAE (Sedge Family)	28
Scilla	LILIACEAE (Lily Family)	32
Scirpus	CYPERACEAE (Sedge Family)	29
Scrophularia	SCROPHULARIACEAE (Figwort Family)	74
Scutellaria	LAMIACEAE (Mint Family)	73
Secale	POACEAE (Grass Family)	20
Sedum	CRASSULACEAE (Stonecrop Family)	50
Selaginella	SELAGINELLACEAE (Spikemoss Family)	6
Senecio	ASTERACEAE (Aster Family)	87
Setaria	POACEAE (Grass Family)	20
Shepherdia	ELAEAGNACEAE (Oleaster Family)	63
Sherardia	RUBIACEAE (Bedstraw Family)	77
Sicyos	CUCURBITACEAE (Gourd Family)	78
Silene	CARYOPHYLLACEAE (Pink Family)	43
Silphium	ASTERACEAE (Aster Family)	84
Silybum	ASTERACEAE (Aster Family)	84
Sinapis	BRASSICACEAE (Mustard Family)	49
Sisymbrium	BRASSICACEAE (Mustard Family)	49
Sisyrinchium	IRIDACEAE (Iris Family)	33
Sium	APIACEAE (Carrot Family)	66
Smilax	SMILACACEAE (Briar Family)	33
Solanum	SOLANACEAE (Nightshade Family)	73
Solidago	ASTERACEAE (Aster Family)	84
Sonchus	ASTERACEAE (Aster Family)	85
Sorbaria	ROSACEAE (Rose Family)	55
Sorbus	ROSACEAE (Rose Family)	55
Sorghastrum	POACEAE (Grass Family)	20
Sorghum	POACEAE (Grass Family)	20
Sparganium	SPARGANIACEAE (Bur-reed Family)	11
Spartina	POACEAE (Grass Family)	20
Spergula	CARYOPHYLLACEAE (Pink Family)	44
Spergularia	CARYOPHYLLACEAE (Pink Family)	44
Sphenopholis	POACEAE (Grass Family)	20
Spiraea	ROSACEAE (Rose Family)	55
Spiranthes	ORCHIDACEAE (Orchid Family)	35
Spirodela	LEMNACEAE (Duckweed Family)	30
Sporobolus	POACEAE (Grass Family)	20
Stachys	LAMIACEAE (Mint Family)	73
Staphylea	STAPHYLEACEAE (Bladdernut Family)	59
Stellaria	CARYOPHYLLACEAE (Pink Family)	44
Streptopus	LILIACEAE (Lily Family)	32
Stuckernia	POTAMOGETONACEAE (Pondweed Family)	12
Symphoricarpos	CAPRIFOLIACEAE (Honeysuckle Family)	77
Symphyotrichum	ASTERACEAE (Aster Family)	85
Symphytum	BORAGINACEAE (Borage Family)	71
Symplocarpus	ARACEAE (Arum Family)	29
Syringa	OLEACEAE (Olive Family)	68
Tanacetum	ASTERACEAE (Aster Family)	86
Taraxacum	ASTERACEAE (Aster Family)	86
Taxus	TAXACEAE (Yew Family)	10
Teucrium	LAMIACEAE (Mint Family)	73
Thalictrum	RANUNCULACEAE (Crowfoot Family)	46
Thelypteris	THELYPTERIDACEAE (Marsh Fern Family)	8
Thladiantha	CUCURBITACEAE (Gourd Family)	78
Thlaspi	BRASSICACEAE (Mustard Family)	50
Thuja	CUPRESSACEAE (Cypress Family)	11
Thymus	LAMIACEAE (Mint Family)	73
Tiarella	SAXIFRAGACEAE (Saxifrage Family)	51
Tilia	TILIACEAE (Linden Family)	61
Torreyochloa	POACEAE (Grass Family)	20
Toxicodendron	ANACARDIACEAE (Cashew Family)	59
Tragopogon	ASTERACEAE (Aster Family)	86
Triadenum	HYPERICACEAE (St. John's-wort Family)	61
Trichophorum	CYPERACEAE (Sedge Family)	29
Trichostema	LAMIACEAE (Mint Family)	73
Trientalis	PRIMULACEAE (Primrose Family)	68
Trifolium	FABACEAE (Bean Family)	56
Triglochin	JUNCAGINACEAE	12
Trillium	LILIACEAE (Lily Family)	32
Triodanis	CAMPANULACEAE (Bellflower Family)	79
Triosteum	CAPRIFOLIACEAE (Honeysuckle Family)	78
Tripleurospermum	ASTERACEAE (Aster Family)	86
Trisetum	POACEAE (Grass Family)	21
Triticum	POACEAE (Grass Family)	21
Tsuga	PINACEAE (Pine Family)	10
Tussilago	ASTERACEAE (Aster Family)	86
Typha	TYPHACEAE (Cat-tail Family)	11
Ulmus	ULMACEAE (Elm Family)	38
Urtica	URTICACEAE (Nettle Family)	39
Utricularia	LENTIBULARIACEAE (Bladderwort Family)	75
Uvularia	LILIACEAE (Lily Family)	33
Vaccaria	CARYOPHYLLACEAE (Pink Family)	44
Vaccinium	ERICACEAE (Heath Family)	67
Valeriana	VALERIANACEAE (Valerian Family)	78
Vallisneria	HYDROCHARITACEAE (Frog's-bit Family)	13
Ventenata	POACEAE (Grass Family)	21
Verbascum	SCROPHULARIACEAE (Figwort Family)	74
Verbena	VERBENACEAE (Vervain Family)	71
Veronica	SCROPHULARIACEAE (Figwort Family)	75
Viburnum	CAPRIFOLIACEAE (Honeysuckle Family)	78
Vicia	FABACEAE (Bean Family)	57
Vinca	APOCYNACEAE (Dogbane Family)	69
Viola	VIOLACEAE (Violet Family)	62
Vitis	VITACEAE (Grape Family)	60
Waldsteinia	ROSACEAE (Rose Family)	55
Wolffia	LEMNACEAE (Duckweed Family)	30
Woodsia	DRYOPTERIDACEAE (Woodfern Family)	10
Woodwardia	BLECHNACEAE (Chain Fern Family)	8
Xanthium	ASTERACEAE (Aster Family)	86
Zannichellia	ZANNICHELLIACEAE (Horned Pondweed Family)	12
Zanthoxylum	RUTACEAE (Rue Family)	57
Zea	POACEAE (Grass Family)	24
Zigadenus	LILIACEAE (Lily Family)	33
Zizania	POACEAE (Grass Family)	21
Zizia	APIACEAE (Carrot Family)	66
Zosterella	PONTEDERIACEAE (Pickerelweed Family)	30

ATTACHMENT 2: Excluded taxa

Rejected or unconfirmed reports

The following taxa are unconfirmed in the City of Ottawa. They have been recently reported (1970 or later) but no supporting specimen has been seen, the taxon does not grow in the wild, or the City of Ottawa voucher specimens have been revised to another taxon.

Anchusa arvensis (L.) Bieb. (Lycopsis arvensis L.)	- no Ottawa specimens observed
Betula cordifolia Regel.	- unconfirmed sight record in Cumberland (Queenswood Forest)
Calceolaria tripartita Ruiz. & Pav. # (C. scabiosaefolia Roem. & Schultes)	- old (1947) collection based on garden plant
Carex argyrantha Tuckerm.	- revised to C. foenea Willd.
Carex annectans Bick.	- several reports revised to C. vulpinoidea Willd.
Carex atlantica Bailey	- unconfirmed report from Carlsbad Springs SW
Carex cephalophora Willd.	- several specimens revised to C. cephaloidea; unconfirmed report from Cardinal Creek; Bearbrook.
Carex festucacea Willd.	- revised to other taxa including Carex tenera Dew.
Carex nigromarginata Schwein.	- erroneously reported (South Gloucester)
Chaerophyllum procumbens (L.) Crantz #	- revised to Coriandrum sativum
Clematis occidentalis (Hornem.) DC	- revised to C. vitiella; additional unconfirmed sight record from Kilmaurs Wetland, West Carleton
Conyza ramosissima Cronq. #	- revised to C. canadensis (L.) Cronq.
Eleocharis geniculata (L.) R. & S.	- unconfirmed report (Duck Islands)
Eleocharis quinqueflora (Hartm.) Schw. (E. pauciflora (Lightf.) Link)	- unconfirmed report (Morris Island)
Geum macrophyllum Willd.	- revised to G. aleppicum Jacq.
Hyoscyamus niger L. #	- no Ottawa specimens observed
Hypericum canadense L.	- unconfirmed reports (Greely West; Vars East); several specimens revised to H. majus
Impatiens pallida Nutt.	- erroneously reported from Antrim area
Myriophyllum farwellii Morong	- no Ottawa specimens seen
Panicum rigidulum Ness	- unconfirmed report (Duck Islands)
Papaver orientale L. #	- cultivar only (old record at Central Experimental Farm)
Robinia hispida L.	- cultivated plants
Salix rigida Michx. (S. cordata Michx.)	- nomenclatural confusion with S. cordata Muhl.(synonym of S. eriocephala Michx.)
Solidago bicolor L.	- revised to S. hispida Muhl.
Stellaria longipes Goldie	- revised to other taxa

Ottawa District flora not confirmed in the City of Ottawa

The following species are known to occur (or have occurred) within the Ottawa District, viz., a 50 km circle of the Parliament Buildings, including lands and water in several municipalities in both Ontario and Quebec (Gillett and White 1978), but have not been recorded within the City of Ottawa (former Region of Ottawa-Carleton).

Alnus viridis (Chaix.) DC. ssp. crispa (Dry. & Ait.) Turrill West Quebec (Gatineau River)]

(A. crispa (Ait.) Pursh)

Arabis canadensis L. West Quebec (Gatineau Park)

Aster nemoralis Ait. West Quebec (Gatineau Park)

Aster tradescanti L. Gatineau (Ottawa River shore)

Betula cordifolia Regel West Quebec (Gatineau Park)

Calamagrostis stricta (Trin.) Koeler Gatineau (old record, Aylmer)

Carex conoidea R. Br. Gatineau (old record, Aylmer)

Carex michauxiana Boeck. West Quebec (Gatineau Park)

Carex wiegandii Mack. Russell County (old record, Moose Creek Bog)

Carex muhlenbergii Willd. West Quebec (Gatineau Park)

Carex tetanica (Fern.) Bickn. Grenville County (Kemptville)

Carya ovata (Mill.) K. Koch Russell County (Casselman); Gatineau (Aylmer)

Chenopodium rubrum L. Gatineau (old record, Hull)

Cirsium muticum Michx. Russell County (old record, Moose Creek Bog)]

Conopholis americana (L.) Wallr. West Quebec (Gatineau Park)

Corallorrhiza odontorhiza (Willd.) Poir LaRose Forest, Russell Co.

Cyperus dentatus Torr. West Quebec (Gatineau Park; Masson)

Danthonia compressa Aust. West Quebec (Gatineau Park)

Draba cana Rydb. West Quebec (Gatineau Park)

Dryopteris × burgesii Boivin Gatineau (Aylmer)

(D. clintoniana (Eat.) Dow. x marginalis (L.) Gray)

Eleocharis robbinsii Oakes West Quebec (Poltimore)

Eleocharis olivacea Torr. West Quebec (Poltimore)

Eleocharis nitida Fern. West Quebec (Quyon)

Eleocharis pauciflora (Lightf.) Link West Quebec (Gatineau Park)

Eleocharis ovata (Roth) R.& S. West Quebec (Quyon)

Elymus elongatus (Host) Runem. ssp. ponticus (Podp.) Meld. # Gatineau (Hull; Chelsea)

Elymus smithii (Rydb.) Gould # Russell County (Casselman); West Quebec

(Agropyron smithii Rydb.)

Epilobium paniculatum Nutt. West Quebec

Floerkea proserpinacoides Willd. Lanark County (Almonte); Russell County (Russell)

Galium lanceolatum Torr. West Quebec (Gatineau Park)

Glyceria × gatineauensis Bowden West Quebec (Gatineau Park)

(G. melicaria (Michx.) Hubb. x striata (Lam.) Hitchc.)

Helenium flexuosum Raf. # Grenville County (Kemptville); Gatineau (Hull)

Hieracium paniculatum L. West Quebec (Gatineau Park)

Hippurus vulgaris L. West Quebec (Gatineau Park)

Hypericum ascyron L. Russell County (Moose Creek Bog)

Hypericum canadense L. Russell County (Casselman)

Iberis amara L. # Gatineau(Hull)

Iris prismatica Pursh # Pakenham (old record, Lanark County)

Isoetes ×jeffreyi Britton & Brunton West Quebec (Lac La Blanche)

(I. macrospora Dur. x riparia Engelm.)

Listera cordata (L.) R. Br. West Quebec (Gatineau Park)

Listera auriculata Wieg. West Quebec (Gatineau Park)

Lobelia dortmanna L. West Quebec (St. Pierre de Wakefield; Lac La Blanche)

Lychnis chalcedonica L. # West Quebec (old record, Wakefield); Russell County (Casselman)]

Melica smithii (Porter) Vasey West Quebec (Gatineau Park)

Mimulus moschatus Dougl. # West Quebec [native elsewhere in Ontario]

Muhlenbergia tenuifolia (Willd.) BSP. Gatineau (Hull)

Muhlenbergia uniflora (Muhl.) Fern. West Quebec (Gatineau Park)

Myosotis laxa Lehm. Lanark County (old record, Ramsay Tp.)

Myriophyllum farwellii Morong West Quebec (Gatineau Park)

Oenothera pilosella Raf. Grenville County (old record, Kemptville)

Pellaea atropurpurea (L.) Link Renfrew County (White Lake); West Quebec (Gatineau Park and area)

Pellaea glabella Mett. ex Kuhn Renfrew County (Arnprior); West Quebec (Gatineau Park)

Picea rubens Sarg. West Quebec ((Gatineau Park and vicinity)

Platanthera macrophylla (Goldie) Brown West Quebec (Gatineau Park)

Poa chaixii Vill. # West Quebec (Gatineau Park)

Polygonum douglasii Greene West Quebec (Gatineau Park)

Polystichum braunii (Spenner) Fee West Quebec (Gatineau Park)

Potamogeton strictifolius A. Benn. West Quebec (Wakefield)

Potamogeton alpinus Balbis West Quebec (Gatineau Park)

Potentilla tridentata Ait. West Quebec (Gatineau Park)

Ranunculus macounii Britt. West Quebec (Quyon)

Rhynchospora fusca (L.) Ait.f. West Quebec (Gatineau Park)

Ribes oxycanthoides L. West Quebec (old record, Wakefield)

Salix daphnoides Vill. # Gatineau (Aylmer)

Sanicula canadensis L. Dundas County (Hallville)

Salix fragilis L. Gatineau (Hull, Aylmer)

Schoenoplectus subterminalis (Torr.) Sojak West Quebec (Poltimore)

(Scirpus subterminalis Torr.)

Schoenoplectus torreyi (Olney) Palla Gatineau (Gatineau Point, Thurso)

(Scirpus torreyi Olney)

Sorbus decora (Sarg.) Schneid. West Quebec (Gatineau Park)

Toxicodendron vernix (L.) Kuntze Gatineau (Parc Lac Beauchamps)

Triadenum virginicum (L.) Raf. West Quebec (Gatineau Park)

Trisetum melicoides (Michx.) Vasey Gatineau (old record, Aylmer)

Utricularia gibba L. Gatineau (Alcove)

Viola ×sublanceolata House Gatineau (Aylmer)

(V. primulifolia, auct.; V. lanceolata L. x macloskeyi Lloyd)

Woodsia obtusa (Spreng.) Torr. West Quebec (Gatineau Park)

ATTACHMENT 3: Alphabetical listing of Regionally Significant taxa

Scientific Name	Common Name
Adlumia fungosa (Ait.) Greene	Alleghany-vine
Agalinis paupercula (A. Gray) Britt. (A. purpurea (L.) Penn. var. parviflora (Benth.) Boivin )	Small-flowered Gerardia
Agrimonia striata Michx.	Grooved Agrimony
Alisma gramineum Gmel.	Grass-leaved Water-plantain
Allium canadense L.	Canada Onion
Allium schoenoprasum L. var. sibiricum (L.) Hartm.	Wild Chives
Amaranthus tuberculatus (Moq. ex DC.) Sauer (Acnida tuberculata Moq.)	Water-hemp
Amelanchier alnifolia Nutt. var. compacta (Neilson) McKay (A. canadensis, auct., in part; A. humilis Wieg., in part)	Saskatoon
Amelanchier bartramiana (Tausch) Roemer	Mountain Juneberry
Amerorchis rotundifolia (Banks) Hulten	Round-leaved Orchis
Andromeda glaucophylla Link	Bog-rosemary
Andropogon gerardii Vittm.	Big Bluestem
Angelica atropurpurea L.	Black-stem Angelica
Antennaria parlinii Fern. (A. plantaginifolia, auct.)	Plantain Pussy-toes
Anthoxanthum nitens (Weber) Schouten & Veldkamp (Hierochloe odorata (L.) Beauv.)	Sweet Grass
Aplectrum hyemale (Muhl. ex Willd.) Nutt.	Puddy-root
Arabis drummondii A. Gray	Drummond's Rock-cress
Arabis hirsuta (L.) Scop var. pycnocarpa (Hopkins) Rollins (A. pycnocarpa Hopkins)	Hairy Rock-cress
Arceuthobium pusillum Peck	Dwarf Mistletoe
Arethusa bulbosa L.	Dragon's-mouth
Asclepias tuberosa L.	Butterfly-weed
Asclepias verticillata L.	Whorled Milkweed
Asplenium platyneuron (L.) Oakes	Ebony Spleenwort
Asplenium rhizophyllum L. (Camptosorus rhizophyllus (L.) Link)	Walking Fern
Asplenium trichomanes L. ssp. quadrivalens Meyer	Tetraploid Maidenhair Spleenwort
Asplenium trichomanes L. ssp. trichomanes	Diploid Maidenhair Spleenwort
Astragalus canadensis L.	Canada Milk-vetch
Astragalus neglectus (T.& G.) Sheld. (A. cooperi A. Gray)	Cooper's Milk-vetch
Azolla caroliniana Willd.	Mosquito Fern
Betula pumila L. (B. glandulosa Michx. var. glandulifera (Regel) Gl.)	Dwarf Birch
Betula ×sandbergii Britt. (B. papyrifera Marsh. x pumila L.)	Sandberg's Birch
Bidens discoideus (T. & G.) Britt.	Discoid Beggarticks
Bidens vulgatus Greene (B. frondosus, p.pt.)	Common Beggarticks
Botrychium lanceolatum (Gmel.) Angstr.	Daisy-leaved Moonwort
Botrychium minganense Victorin	Mingan Moonwort
Botrychium oneidense (Gilb.) House	Blunt-lobed Grapefern
Botrychium rugulosum W.H. Wagner (B. ternatum, auct.)	St. Lawrence Grapefern
Brachyelytrum erectum (Schreb. ex Sprengel) Beauv.	Southern Bearded Shorthusk
Brasenia schreberi Gmel.	Water-shield
Bromus latiglumis (Shear) A. Hitchc. (B. altissimus Pursh; B. purgans, auct.; B. pubescens, auct., non Muhl. ex Willd)	Canada Brome Grass
Callitriche hermaphroditica L.	Water-starwort
Calopogon tuberosus (L.) Britt.	Grass-pink
Calypso bulbosa (L.) Oakes	Calypso
Calystegia spithamaea (L.) Pursh (Convolvulus spithameus L.)	Low Bindweed
Cardamine bulbosa (Schreb.) BSP.	Spring Cress
Cardamine concatenata (Michx.) Schwein. (Dentaria laciniata Muhl.)	Cut-leaved Toothwort
Cardamine parviflora L. var. arenicola (Britt.) Schulz	Bitter-cress
Cardamine pratensis L.	Mayflower
Cardamine ×maxima (Nutt.) Wood (C. concatenata (Michx.) Schw. x diphylla (Michx.) Wood)	Large Toothwort
Carex alopecoidea Tuckerm.	Foxtail Sedge
Carex aquatilis Wahl.	Aquatic Sedge
Carex arcta Boott	Bear Sedge
Carex atherodes Sprengel	Awned Sedge
Carex backii Boott	Back's Sedge
Carex brevior (Dew.) Mack.	Short-headed Sedge
Carex chordorrhiza L.f.	Cord Sedge
Carex concinna R. Br.	Elegant Sedge
Carex crawei Dew.	Crawe's Sedge
Carex crawfordii Fern.	Crawford's Sedge
Carex cryptolepis Mack.	Hidden-scale Sedge
Carex cumulata (Bailey) Mack.	Clustered Sedge
Carex debilis Michx. var. rudgei Bailey	Weak Sedge
Carex deflexa Hornem.	Deflexed Sedge
Carex echinata Murr.	Prickly Sedge
Carex exilis Dew.	Starved Sedge
Carex foenea Willd. (C. aenea Fern.)	Copper Sedge
Carex folliculata L.	Long Sedge
Carex formosa Dew.	Handsome Sedge
Carex grisea Wahl. (C. amphibola Steudel var. turgida Fern.)	Gray Sedge
Carex gynandra Schw.	sedge
Carex gynocrates Wormsk. ex Drejer	Ridged Sedge
Carex haydenii Dew.	Cloud Sedge
Carex houghtoniana Torr. ex Dew.	Houghton's Sedge
Carex lenticularis Michx.	Flat-seeded Sedge
Carex limosa L.	Mud Sedge
Carex livida (Wahl.) Willd.	Lead Sedge
Carex lucorum Link	Distant Sedge
Carex merritt-fernaldii Mack.	Fernald's Sedge
Carex molesta Mack.	Troublesome Sedge
Carex novae-angliae Schw.	New England Sedge
Carex oligosperma Michx.	Few-seeded Sedge
Carex ormostachya Wieg.	Necklace Sedge
Carex pauciflora Lightf.	Few-flowered Sedge
Carex prairea Dew.	Prairie Sedge
Carex prasina Wahl.	Onion Sedge
Carex richardsonii R. Br.	Richardson's Sedge
Carex sartwellii Dew.	Sartwell's Sedge
Carex scoparia Willd.	Broom Sedge
Carex siccata Dew. (C. foenea, auct., non Willd.)	Dry Sedge
Carex sterilis Willd.	Sterile Sedge
Carex sychnocephala Carey	Compact Sedge
Carex tenuiflora Wahl.	Sparse-flowered Sedge
Carex trisperma Dew. var. billingsii Knight	Billing’s Sedge
Carex typhina Michx.	Cat-tail Sedge
Carex umbellata Willd.	Umbrella Sedge
Carex utriculata Boott x vesicaria L.	hybrid sedge
Carex utriculata Boott (C. rostrata Stokes var. utriculata (Boot) Bailey)	Beaked Sedge
Carex vaginata Tausch	Ensheathed Sedge
Carex woodii Dew.	Wood's Sedge
Caulophyllum thalictroides (L.) Michx.	Southern Blue-cohosh
Ceanothus americanus L.	New Jersey Tea
Cerastium brachypodum (Engelm. ex Gray) Robins. (C. nutans Raf. var. brachypodum Engel. e Gray)	Nodding Chickweed
Ceratophyllum echinatum A. Gray	Spiny Coon-tail
Chamaesyce glyptosperma (Engelm.) Small (Euphorbia glyptosperma Engelm.)	Ridge-seeded Spurge
Chenopodium capitatum (L.) Aschers	Strawberry-blight
Chrysosplenium americanum Schwein.	Golden Saxifrage
Cirsium discolor L.	Pasture Thistle
Cladium mariscoides (Muhl.) Torr.	Twig-rush
Claytonia virginica L.	Virginia Spring-beauty
Coeloglossum viride (L.) Hartm.	Frog Orchid
Comarum palustre L. (Potentilla palustris (L.) Scop.)	Marsh Cinquefoil
Corallorhiza maculata (Raf.) Raf. (s.l.)	Spotted Coralroot
Corallorhiza striata Lindl.	Striped Coralroot
Corydalis aurea Willd.	Golden Corydalis
Crataegus apiomorpha Sarg.	Hawthorn
Crataegus holmesiana Ashe	Hawthorn
Crataegus intricata Lange	Hawthorn
Crataegus irrasa Sarg.	Hawthorn
Crataegus succulenta Link	Succulent Hawthorn
Cryptogramma stelleri (Gmel.) Prantl.	Slender Cliffbrake
Cynoglossum virginianum L. var. boreale (Fern.) Cooperrider (C. boreale Fern.)	Northern Comfrey
Cyperus diandrus Torr.	Two-stamened Umbrella-sedge
Cyperus houghtonii Torr.	Houghton's Umbrella-sedge
Cyperus lupulinus (Spreng.) Marcks ssp. macilentus (Fern.) Marcks (C. filiculmis, auct., non Vahl)	Slender Umbrella-sedge
Cyperus odoratus L. (incl. C. engelmannii Steudel; C. ferruginescens, auct., non Boeck.)	Engelmann's Umbrella-sedge
Cypripedium arietinum R. Br.	Rams-head Lady-slipper
Dalibarda repens L.	Dewdrop
Deschampsia cespitosa (L.) Beauv.	Tufted Hair Grass
Deschampsia flexuosa (L.) Trin.	Wavy Hair Grass
Dichanthelium acuminatum (Sw.) Gould & Clarke ssp. columbianum (Scribn.) Freckmann & LeLong (P. sabulorum Nash. p. pt.; P. tsugetorum Nash; P. ovale, auct.)	Northern Panic Grass
Dichanthelium acuminatum (Sw.) Gould & Clarke ssp. lindheimeri (Nash) Freckmann & LeLong (Panicum lindheimeri Nash; [P. lanuginosum Ell. var. septentrionalis (Fern.) Fern.? ])	Smooth Panic Grass
Dichanthelium boreale (Nash) Freckmann (Panicum boreale Nash)	Northern Panic Grass
Dichanthelium depauperatum (Muhl.) Gould (Panicum depauperatum Muhl.)	Impoverished Panic Grass
Dichanthelium latifolium (L.) Harvill (Panicum latifolium L.)	Broad-leaved Panic Grass
Dichanthelium xanthophysum (A. Gray) Freckmann (P. xanthophysum A. Gray)	Yellow Panic Grass
Diphasiastrum complanatum (L.) Holub (Lycopodium complanatum L.)	Northern Ground-cedar
Diphasiastrum tristachyum (Pursh) Holub (Lycopodium tristachyum Pursh)	Ground-cedar
Diphasiastrum ×habereri (House) Holub (D. digitatum (A. Br.) Holub x tristachyum (Pursh) Holub)	hybrid Ground-cedar
Diphasiastrum ×zeilleri (Rouy) Holub (D. complanatum (L.) Holub x tristachyum (Pursh) Holub)	hybrid Ground-cedar
Diplazium pycnocarpon (Spreng.) Broun (Athyrium pycnocarpum (Spreng.) Tidestr.)	Glade Fern
Disiphora floribunda (Pursh) Kartesz (Potentilla fruticosa auct., non L.)	Shrubby Cinquefoil
Drosera intermedia Hayne	Intermediate Sundew
Dryopteris goldiana (Hook.) A. Gray	Goldie's Woodfern
Dryopteris ×mickelii J. Peck (D. clintoniana (Eat.) Dow. x goldiana (Hook.) A. Gray)	hybrid Woodfern
Echinochloa walteri (Pursh) Heller	Walter's Barnyard Grass
Elatine americana (Pursh) Arn. (E. triandra Schkr.; E. rubella Rydb.)	American Waterwort
Eleocharis intermedia Schultes	Intermediate Spike-rush
Elodea nuttallii (Planch.) St. John	Nuttall's Waterweed
Elymus canadensis L.	Canada Rye Grass
Elymus ×maltei Bowden[1] (E. canadensis L. x virginicus L.)	Hybrid Rye Grass
Elymus trachycaulus (Link) Gould (s.l.)	Wheat Grass
Elymus villosus Muhl. ex Willd.	Hairy Rye Grass
Elymus wiegandii Fern. (Elymus canadensis L. var. wiegandii (Fern.) Bowden)	Wiegand's Wild Rye
Epigaea repens L.	Trailing-arbutus
Epilobium palustre L.	Swamp Willow-herb
Epilobium strictum Spreng.	Downy Willow-herb
Equisetum palustre L.	Marsh Horsetail
Eragrostis frankii C. Meyer	Frank's Love Grass
Eragrostis hypnoides (Lam.) BSP.	Mossy Love Grass
Eriophorum chamissonis C. Meyer	Chamisso's Cotton-grass
Eriophorum gracile Koch	Slender Cotton-grass
Eriophorum tenellum Nutt.	Filiform Cotton-grass
Eriophorum vaginatum L. (E. spissum Fern.)	Dense Cotton-grass
Eriophorum virginicum L.	Virginia Cotton-grass
Eriophorum viridicarinatum (Engelm.) Fern.	Green Cotton-grass
Eriophorum ×porsildii Raymond (E. chamissonis C. Meyer x vaginatum L.)	Porsild's Cotton-grass
Fimbristylis autumnalis (L.) R.& S.	Autumn Fimbristylis
Galearis spectabilis (L.) Raf.	Showy orchis
Galium boreale L.	Northern Bedstraw
Galium labradoricum (Wieg.) Wieg.	Bog Bedstraw
Galium obtusum Bigel.	Shore Bedstraw
Geum rivale L.	Water Avens
Glyceria canadensis (Michx.) Trin.	Canada Manna Grass
Glyceria ×laxa (Scribn.) Scribn (G. canadensis (Michx.) Trin. x grandis S. Wats.)	Hybrid Manna Grass
Glyceria melicaria (Michx.) Hubb.	Long Manna Grass
Glyceria septentrionalis A. Hitchc.	Southern Manna Grass
Gnaphalium macounii Greene (G. viscosum auct., not HBK)	Macoun's Everlasting
Goodyera pubescens (Willd.) R. Br.	Downy Rattlesnake Plantain
Goodyera repens (L.) R.Br.	Least Rattlesnake Plantain
Goodyera tesselata Lodd.	Tesselated Rattlesnake Plantain
Gratiola aurea Pursh	Golden Hedge-hyssop
Gratiola neglecta Torr.	Hedge-hyssop
Gymnocarpium robertianum (Hoffm.) Newm.	Limestone Oak Fern
Halenia deflexa (Sm.) Griseb.	Spurred-gentian
Hamamelis virginiana L.	Witch-hazel
Hedeoma hispidum Pursh	Mock Pennyroyal
Hedeoma pulegioides (L.) Pers.	American Pennyroyal
Helenium autumnale L.	Sneezeweed
Helianthemum canadense (L.) Michx.	Frostweed
Helianthus divaricatus L.	Woodland Sunflower
Helianthus strumosus L.	Pale-leaved Sunflower
Heracleum maximum Bartr. (H. lanatum Michx)	Cow-parsnip
Hieracium kalmii L. var. fasciculatum (Pursh) Lepage	Hawkweed
Hieracium kalmii L. var. kalmii (H. canadense auct., non Michx.)	Kalm's Hawkweed
Hieracium kalmii L. var. subintegrum (Lepage) Lepage	Hawkweed
Hieracium scabrum Michx.	Rough Hawkweed
Hudsonia tomentosa Nutt.	Beach-heather
Huperzia selago (L.) Bernh. (Lycopodium selago L.)	Mountain Clubmoss
Hydrocotyle americana L.	Marsh Pennywort
Hypericum boreale (Britt.) Bickn. (H. mutilum L. ssp. boreale (Britt.) Gillett)	Dwarf St. John's-wort
Hypericum kalmianum L.	Kalm's St. John's-wort
Hypericum mutilum L.	Small St. John's-wort
Isoetes macrospora Dur. (I. lacustris, p. pt.)	Large-spored Quillwort
Isoetes riparia Engelm.	River Quillwort
Isoetes ×dodgei Eat. (I. echinospora Dur. x riparia Engelm.)	Dodge's Quillwort
Isoetes ×hickeyii Taylor & Luebke (I. echinospora Dur. x macrospora Dur.)	Hickey's Quillwort
Juncus alpinoarticulatus Chaix. ssp. nodulosus (Wahl.) Hamet-Ahti (J. alpinus Vill., p. pt.)	Alpine Rush
Juncus articulatus L.	Jointed Rush
Juncus canadensis J. Gay	Canada Rush
Juncus greenei Oakes & Tuckerm.	Green's Rush
Juncus subtilis E. Meyer	Creeping Rush
Juncus vaseyi Engelm.	Vasey’s Rush
Kalmia polifolia Wang.	Bog Laurel
Lactuca hirsuta Muhl. var. sanguinea (Bigel.) Fern.	Hairy-lettuce
Lathyrus ochroleucus Hook.	Yellow Pea
Lechea intermedia Legg.	Pinweed
Lespedeza capitata Michx.	Bush-clover
Leucophysalis grandiflora (Hook.) Rydb. (Physalis grandiflora Hook.)	White Ground-cherry
Listera australis Lindl.	Southern Twayblade
Lithospermum caroliniense (Walt.) MacM.	Puccoon
Littorella americana Fern.	Shore-grass
Lonicera villosa (Michx.) R.& S.	Northern Honeysuckle
Luzula acuminata Raf.	Wood-rush
Luzula multiflora (Retz.) Lej. (L. campestris (L.) DC., p. pt.)	Common Wood-rush
Lycopodiella inundata (L.) Holub. (Lycopodium inundatum L.)	Bog Clubmoss
Lycopodium lagopus (Laest.) Zin. ex Kuz. (L. clavatum L. var. monostachyon Grev. & Hook.)	One-cone Clubmoss
Lycopus asper Greene	Bugleweed
Lysimachia hybrida Michx.	Hybrid Loosestrife
Lysimachia quadrifolia L.	Whorled Loosestrife
Lythrum alatum Pursh	Winged Loosestrife
Melampyrum lineare Desr.	Cow-wheat
Milium effusum L.	Wild Millet
Minuartia michauxii (Fenzl) Farw. (Arenaria stricta Michx.)	Rock Sandwort
Moehringia lateriflora (L.) Fenzl (Arenaria lateriflora L.)	Grove Sandwort
Monarda fistulosa L.	Wild Bergamot
Moneses uniflora (L.) A. Gray	One-flowered Wintergreen
Muhlenbergia frondosa (Poir.) Fern.	Wire-stem Muhlenbergia
Muhlenbergia sylvatica Torr. ex A. Gray	Woodland Muhlenbergia
Myriophyllum verticillatum L.	Whorled Water-milfoil
Nemopanthus mucronatus (L.) Loes.	Mountain-holly
Neobeckia aquatica (Eat.) Greene (Armoracia lacustris (A. Gray) Al-Shehba & Bates; A. aquatica (Eat.) Wieg.)	Lake Cress
Nuphar microphylla (Pers.) Fern. (N. pumilum, auct.)	Small Pond-lily
Nuphar rubrodisca (Morong) Fern. (N. lutea (L.) Sm. ssp. rubrodisca (Morong) Hellquist & Wiersema)	Red-disk Water-lily
Oenothera oakesiana (A. Gray) Wats. & Coult.	Oakes's Evening-primrose
Ophioglossum pusillum Raf. (O. vulgatum L. var. pseudopodium (Blake) Farw.)	Adder's-tongue Fern
Orobanche uniflora L.	Cancer-root
Oryzopsis pungens (Torr. ex Spreng.) Hitchc.	Sharp-leaved Mountain Rice Grass
Osmorhiza longistylis (Torr.) DC.	Anise-root
Panax quinquefolius L.	Ginseng
Panax trifolius L.	Dwarf Ginseng
Panicum philadelphicum Bernh. ex Trin. ssp. gattingeri (Nash) Freckmann & Long (P. gattingeri Nash)	Gattinger's Panic Grass
Panicum tuckermanii Fern. (P. philadelphicum Bernh. ex Trin., p. pt.)	Tuckerman's Panic Grass
Persicaria arifolia (L.) Harolds. (Polygonum arifolium L.)	Tear-thumb
Persicaria hydropiperoides (Michx.) J.K. Small (Polygonum hydropiperoides Michx.)	False Water-pepper
Persicaria punctata (Ell.) J. K. Small (Polygonum punctatum Ell.)	Water Knotweed
Phragmites australis (Cav.) Trin. ex Steudel var. berlandieri (Fourn.) C.F. Reed	Common Reed Grass
Physostegia virginiana (L.) Benth.	False Dragonhead
Pilea fontana (Lunnell) Rydb.	Clearweed
Pinus banksiana Lamb.	Jack Pine
Platanthera blephariglottis (Willd.) Lindl.	White-fringed Bog Orchid
Platanthera clavellata (Michx.) Luer	Club-spur Orchid
Platanthera dilatata (Pursh) Lindl. ex Beck	White Bog Orchid
Platanthera flava (L.) Lindl.	Tubercled Orchid
Platanthera grandiflora (Bigel.) Lindl.	Large Purple-fringed Orchid
Platanthera huronensis (Nutt.) Lindl. (P. ×media auct., non (Rydb.) Luer)	Fragrant Green Orchid
Platanthera leucophaea (Nutt.) A. Gray	Prairie White-fringed Orchid
Platanthera obtusata (Banks ex Pursh) Lindl.	Blunt-leaved Orchid
Platanthera orbiculata (Pursh) Lindl.	Round-leaved Orchid
Poa alsodes A. Gray	Woodland Meadow Grass
Poa glaucantha Gaudin	Blue Meadow Grass
Poa saltuensis Fern. & Wieg.	Forest Meadow Grass
Podostemum ceratophyllum Michx.	Riverweed
Pogonia ophioglossoides (L.) Juss.	Rose Pogonia
Polygala polygama Walt.	Pink Polygala
Polygala sanguinea L.	Purple Milkwort
Polygala verticillata L.	Whorled Milkwort
Polygonella articulata (L.) Meisn.	Jointweed
Polygonum aviculare L. ssp. neglectum (Bess.) Arcang. (P. neglectum Bess.)	Overlooked Knotweed
Polypodium appalachianum Haufler & Windham (P. virginianum L. forma acuminatum Fern.)	Appalachian Polypody
Potamogeton amplifolius Tuckerm.	Large-leaf Pondweed
Potamogeton friesii Rupr.	Fries’ Pondweed
Potamogeton illinoensis Morong	Illinois Pondweed
Potamogeton obtusifolius Mert. & Koch	Blunt-leaf Pondweed
Potamogeton praelongus Wulf.	White-stemmed Pondweed
Potamogeton vaseyi Robbins	Vasey's Pondweed
Potentilla arguta Pursh	Tall Cinquefoil
Prenanthes alba L.	Rattlesnake-root
Prenanthes racemosa Michx.	Smooth White-lettuce
Proserpinaca palustris L.	Mermaid-weed
Prunus americana Marsh.	American Plum
Prunus pumila L. var. depressa (Pursh) Bean	Low Sand Cherry
Prunus susquehanae Willd. (P. pumila, p. pt.)	Sand Cherry
Pterospora andromedea Nutt.	Pinesap
Pycnanthemum virginianum (L.) Dur. & Jack.	Mountain-mint
Pyrola americana Sweet (P. rotundifolia L. var. americana (Sw.) Fern.)	Round-leaved Pyrola
Pyrola minor L.	Small Shinleaf
Quercus alba L.	White Oak
Ranunculus cymbalaria Pursh	Seaside Buttercup
Ranunculus pensylvanicus L.f.	Hairy Buttercup
Ranunculus hispidus Michx. var. caricetorum (Greene) Duncan (R. septentionalis Poir.)	Northern Crowfoot
Rhynchospora alba (L.) Vahl	White Beak-rush
Rosa palustris Marsh.	Swamp Rose
Rubus pensilvanicus Poir.	Bramble
Rudbeckia laciniata L. var. laciniata	Cut-leaved Coneflower
Rumex salicifolius Weinm. (R. triangulivalvis (Dans.) Rech.f.; R. mexicanus Meiss.)	Willow Dock
Sagittaria cuneata Sheld.	Arrowhead
Salix candida Flugge	Hoary Willow
Salix pedicellaris Pursh	Bog Willow
Salix pyrifolia Anderss.	Balsam Willow
Salix serissima (Bailey) Fern.	Autumn Willow
Samolus valerandi L.	Water-pimpernel
Sanicula trifoliata L.	Three-leaved Snakeroot
Sarracenia purpurea L.	Pitcher-plant
Saururus cernuus L.	Lizard-tail
Scheuchzeria palustris L.	Bog Nut-grass
Schizachyrium scoparium (Michx.) Nees (Andropogon scoparius Michx.)	Little Bluestem
Schoenoplectus acutus (Muhl. ex Bigel.) Love & Love (Scirpus acutus (Sm.) Hartm.)	Great Bulrush
Schoenoplectus heterochaetus (Chase) Sojak (Scirpus heterochaetus Chase)	Slender Bulrush
Scirpus pedicellatus Fern.	Pedicled Bulrush
Scrophularia lanceolata Pursh	Figwort
Selaginella eclipes Buck (S. apoda (L.) Fern., p. pt.)	Meadow Spikemoss
Selaginella rupestris (L.) Spring	Rock Spikemoss
Senecio aureus L.	Golden Groundsel
Sicyos angulatus L.	Bur-cucumber
Sisyrinchium angustifolium Mill.	Blue-eyed grass
Solidago puberula Nutt.	Downy Goldenrod
Sorghastrum nutans (L.) Nash	Indian Grass
Sparganium americanum Nutt.	American Bur-reed
Sparganium androcladum (Engelm.) Morong	Branching Bur-reed
Sparganium fluctuans (Morong) Robins.	Floating Bur-reed
Sparganium natans L. (S. minimum (Hartm.) Fries)	Small Bur-reed
Spiranthes casei Catling & Cruise	Case's Ladies-tresses
Spiranthes lucida (H.H.Eat.) Ames	Shining Ladies-tresses
Spiranthes romanzoffiana Cham.	Hooded Ladies-tresses
Spirodela polyrhiza (L.) Schleid.	Large Duckweed
Sporobolus compositus (Poir.) Merr. (Sporobolus asper (Michx.) Kunth)	Dropseed
Sporobolus heterolepis (A. Gray) A. Gray	Prairie Dropseed
Stachys pilosa Nutt.	Hedge-nettle
Staphylea trifolia L.	Bladdernut
Stellaria borealis Bigel (S. calycantha, auct.)	Northern Stitchwort
Stellaria longifolia Muhl.	Long-leaved Chickweed
Streptopus amplexifolius (L.) DC.	Twisted-stalk
Symphyotrichum boreale (Torr. & Gray) Nesom (Aster borealis (T.& G.) Prov.; A. junciformis Rydb.)	Rush Aster
Symphyotrichum ericoides (L.) Nesom (Aster ericoides L.; Virgulus ericoides (L.) Rev. & Keen)	Heath Aster
Symphyotrichum ontarione (Wieg.) Nesom (Aster ontarionis Wieg.; A. lateriflorus (L.) Britt., p.pt.)	Ontario Aster
Symplocarpus foetidus (L.) Nutt.	Skunk-cabbage
Teucrium canadense L.	Germander
Thalictrum confine Fern. (T. venulosum Trel. var. confine (Fern.) Boivin )	Western Meadow-rue
Torreyochloa fernaldii (A. Hitchc.) Church	Fernald's Manna Grass
Torreyochloa pallida (Torr.) Church	Pale Manna Grass
Toxicodendron radicans (L.) Kuntze (Rhus radicans L. ssp. negundo (Greene) McNeill)	Climbing Poison-ivy
Trichophorum alpinum (L.) Pers. (Scirpus hudsonianus (Michx.) Fern.)	Wooly Club-rush
Triglochin maritimum L.	Arrow-grass
Triglochin palustre L.	Arrow-grass
Trisetum spicatum (L.) Richter (incl. T. triflorum (Bigel.) A. & D. Löve)	False Oats
Utricularia cornuta Michx.	Horned Bladderwort
Utricularia geminiscapa Benj.	Twinned Bladderwort
Utricularia intermedia Hayne	Flat-leaved Bladderwort
Utricularia minor L.	Lesser Bladderwort
Uvularia sessilifolia L.	Small Bellwort
Vaccinium macrocarpon Ait.	Large Cranberry
Valeriana sitchensis Bong. ssp. uliginosa (T.& G.) Mey. (V. uliginosa (T. & G.) Rydb.)	Marsh Valerian
Verbena simplex Lehm.	Narrow-leaved Vervain
Verbena stricta Vent.	Hoary Vervain
Veronica anagallis-aquatica L. (V. catenata Penn; V. comosa Richter)	Water Speedwell
Viburnum dentatum L. var. lucidum Ait. (V. recognitum Marsh.)	Southern Arrow-wood
Vicia americana Muhl.	Purple Vetch
Viola adunca Sm.	Early Violet
Viola lanceolata L.	Lance-leaved Violet
Viola rostrata Pursh	Long-spurred Violet
Viola sagittata Ait. var. ovata (Nutt.) T. & G. (V. fimbriatula Sm.)	Northern Downy Violet
Viola selkirkii Pursh	Great-spurred Violet
Woodsia ilvensis (L.) R. Br.	Rusty Woodsia
Woodsia oregana D.C. Eat. ssp. cathcartiana (Robins.) Wind.	Cathcart's Woodsia
Woodwardia virginica (L.) Sm.	Virginia Chain Fern
Zannichellia palustris L.	Horned Pondweed
Zigadenus elegans Pursh ssp. glaucus (Nutt.) Hult. (Z. glaucus Nutt.)	White Camas
Zizania aquatica L.	Southern Wild Rice
Zizia aurea (L.) Koch	Golden Alexanders

ATTACHMENT 4: Regionally Significant taxa locations

A number of the site location names are unofficial, may no longer exist and/ or are listed in documentation that may not be widely published (e.g. NESS reports - Region of Ottawa-Carleton 1997). Accordingly, the following alphabetically lists all of the site names mentioned herein and provides a UTM Grid reference point to the approximate centre of each location. A listing of the number of Regionally Significant taxa recorded from each of these sites is also provided.

Site name	No of Significant Species	Location description (including NESS number, where appropriate)	UTM Grid Reference (1:50,000 NTS maps - NAD 83)
8th Line North	3	NESS 25; 5.5 km N of Metcalfe, Osgoode	31G/6 615145
Airbase Woods	5	Ottawa River shore west of National Aviation Museum, Ottawa	31G/5 509344
Airport Parkway	1	NESS 105; Blossom Park, Gloucester to Windsor Park, Ottawa	31G/5 212490
Albion Wetland	56	NESS 100: Abion Road S of Leitrim Road, Gloucester	31G/5 525175
Albion Road South	1	NESS 96: SW of Johnsons Corners, Gloucester	31G/5 525125
Anderson Road	5	NESS 86: South of Highwy 417 by Anderson Road, Gloucester	31G/5 600230
Andrew Haydon Park	5	recreational park & natural shoreline at Ottawa River, Nepean	31G/5 360225
Antrim	8	woodlots in vicinity of settlement, West Carleton	31 F/8 037245
Antrim Black Maple ANSI	4	NESS 542: Hanson Side Road woodland, West Carleton	31 F/8 00230
Barnsdale Woodland	1	NESS 507: upland forest area 5 km west of Manotick in Nepean	31G/4 405075
Barrhaven	2	residential area, central Nepean	31G/5 403142
Baskins Beach	8	Ottawa River hamlet, West Carleton	31 F/8 215365
Baxter Conservation Area	7	Rideau River shore south of Kars, Rideau Tp.	31G/4 505940
Baxters Corners	1	NESS 429: woodland complex 6 kms northwest of North Gower, Rideau Tp.	31G/4 385030
Bear Brook	2	creek valley in vicinity of Carlsbad Springs, Cumberland	31G/6 670250
Beechwood	4	cemetery and urban area, Manor Park	31G/5 480330
Bell High School Woods	2	woodland and swamp complex, Lynwood Village, Nepean	31G/5 363192
Billings Bridge	9	lost or remnant woodlands and rivershore habitat along Rideau River	31G/5 473263
Billings Bridge Islands ESA	2	former Ottawa Ecologically Sensitive Area; islands and adjacent Rideau River shore, Billings Bridge	31G/5 467263
Brassils Creek	4	stream crossing Dwyer Hill Road in southern Rideau Tp.	31G/4 336850
Britannia	5	residential area and urban park south of Lac Deschenes Ottawa River, Ottawa	31G/5 375235
Britannia Bay	6	NESS 512: shoreline and river bottom at Lac Deschenes, Ottawa River, Ottawa	31G/5 368230
Britannia Conservation Area	42	NESS 513: upland and wetland complex along Ottawa River at Deschenes Rapids, Ottawa	31G/5 380245
Bruce Pit	4	upland woods, regenerating meadow and sand barren complex between West Hunt Club Road and Baseline Road, Nepean	31G/5 385190
Buchans Bay	3	inlet of Ottawa River, West Carleton	31 F/8 135385
Buchans Bay West	4	NESS 522: woodland area west of Buchans Bay, Ottawa River, West Carleton	31 F/8 120390
Burnt Lands	34	NESS 406: upland alar and woodland area, West Carleton	31 F/8 110120
Burritts Rapids	8	Rideau River village and adjacent Dwyer Hill Road, southern Rideau Tp.	31 B/13 372812
Cardinal Creek	3	NESS 46: creek valley into Ottawa River, Orleans	31G/6 635365
Carleton University	1	north side of Rideau River between Rideau Canal and Bronson Avenue	31G/5 455260
Carlsbad Springs	1	village along Bear Brook, Gloucester	31G/6 640240
Carlsbad Springs Southwest	10	NESS 88: north of Highway 417, Gloucester/ Cumberland	31G/6 655225
Carlsbad Springs East	3	NESS 73: woodland northeast of Carlsbad Springs, Cumberland	31G/6 683235
Cambrian Road	3	NESS 508: woodland complex by Highway 416 s kms south of Barrhaven, Nepean	31G/4 405105
Carp Airport	2	NESS 413: woodland area south of airport, West Carleton	31 F/8 195175
Carp Hills	22	NESS 538: extensive granitic-based upland between Kanata (March Road) and Morris Island, West Carleton	31 F/8 150270
Carp	1	village along Carp River, West Carleton	31 F/8 190220
Carriere Street Woods	1	urban woodlot in central Orleans, Gloucester	31G/5 588349
Carsonby	2	vicinity of village in Rideau Township	31G/4 435025
Champlain Bridge	23	Ottawa River rapids, islands and adjacent woodlands, Westboro	31G/5 408284
Chapel Hill Forest	2	ravine forest of central tributary of Bilberry Creek, Orleans, Gloucester	31G/5 577337
Chaudiere Rapids	5	Ottawa River rapids and adjacent woodlands, Ottawa West	31G/5 4416294
Church Woods	1	woodland at Old Innes Road - Innes Bypass intersection, Blackburn Hamlet, Gloucester	31G/5 575318
Conroy Woods	2	low woodland and wetland area, Heron Gate, Gloucester	31G/5 495245
Constance Bay Sand Hills	39	NESS 521 (in part): upland woods and sand barrens, northern West Carleton	31 F/8 150390
Constance Bay Shores	12	NESS 521 (in part): beach and emergent shore, northern West Carleton	31 F/9 160390
Constance Creek	6	NESS 517: creek flowing northward into Constance Bay, West Carleton	31 F/8 190340
Constance Lake	4	NESS 517: largest inland lake in Ottawa along Constance Creek, West Carleton	31G/5 230290
Cooper Hill Road South	1	NESS 29: woodland 4 km NE of Metcalfe, Osgoode	31G/6 635135
Core Park	2	wooded parkland, eastern Barrhaven, Nepean	31G/5 420145
Corkery	7	NESS 409: centered on Corkery Creek E of Corkery hamlet	31 F/8 145150
Cranberry Creek	3	tributary of Rideau River west of Kars, Rideau Tp.	31G/4 465925
Crown Point	7	beach area along Ottawa River, West Carleton	31 F/9 110405
Crystal Bay Woods	1	NESS 515: SW of Carling Ave/ Moodie Drive intersection, Nepean	31G/5 325215
Crystal Bay	4	Ottawa River shore (Beatty Point) and adjacent upland, Nepean	31G/5 330230
Cumberland	3	Ottawa River shore and adjacent woodlands near former village, Cumberland	31G/11 690400
Deschenes Lookout ESA	11	former Ottawa Ecologically Sensitive Area; aquatic site east of parking area, Ottawa River Parkway	31G/5 391253
DND Woods	5	woodland area in Orleans, Gloucester	31G/5 573330
Dows Swamp	1	wetland at Carleton University site, Ottawa South (destroyed)	31G/5 455265
Duck Islands	12	islands and adjacent aquatic habitat in Ottawa River, Gloucester	31G/5 530353
Dunrobin	1	vicinity of village in West Carleton	31 F/8 200300
Dwyer Hill	5	vicinity of village along Dwyer Hill Road, Goulbourn	31G/4 255975
Edwards	4	NESS 27: woodland southwest of Edwards, Osgoode	31G/6 630175
Elmhurst Street Woods	4	urban woodland in Britannia Heights	31G/5 383231
Emmett Road	1	NESS 50: woodland in Beckett Creek headwaters, Cumberland	31G/6 725370
Experimental Farm, Ottawa	1	agricultural research area, Ottawa	31G/5 440260
Fallowfield	1	vicinity of hamlet in Nepean	31G/5 350125
Fernbank Weltand	1	wetland complex on limestone plain southwest of Sttitsville	31G/4 280100
Findlay Creek Wetland	3	NESS 93: stream and wetland complex southeast of Leitrim, Gloucester	31G/5 580200
Fitzroy Harbour	8	vicinity of Ottawa River village at mouth of Mississippi River, West Carleton	31 F/8 050360
Fitzroy Provincial Park	27	NESS 524(in part): provincial park (and adjacent Helen Is.) on Ottawa River at junction with Mississippi River, West Carleton	31 F/8 040375
Forestglen Park	4	westernmost branch of Bilberry Creek in Chapel Hill, Gloucester	31G/5 573336
French Hill Creek	4	NESS 52: wetland and forest 3 km east of French Hill village, Cumberland	31G/6 735354
French Hill Swamp	7	NESS 51: swamp forest 2 km south of Beckett Creek, Cumberland	31G/6 740370
Galetta	1	Mississippi River at Galetta Village, West Carleton	31 F/8 020310
Grainger Side Road	2	woodland/ alvar complex by Highway 417, West Carleton	31 F/8 058222
Greely	1	vicinity of village, Osgoode	31G/5 560120
Greely East	1	NESS 21: woodland area east of Greely, Osgoode	31G/5 575140
Greely West	3	NESS 17: woodland area northwest of Greely, Osgoode	31G/5 540140
Green Island, Rideau River	1	alluvial island by mouth of Rideau River, New Edinburgh (site destroyed)	31G/5 463319
Greens Creek Conservation Area	9	NESS 114: valley of Ottawa River tributary, Gloucester	31G/5 455325
Harwood Plain	5	woodland area l km north of Harwood Plain settlement, Kanata	31G/5 255262
Hazeldean Woods Park	1	swamp and upland woodland in Katamvik, Kanata	31G/5 301172
Hearts Desire Woods	1	woodland and rivershore north of Jock River by Rideau River, Nepean	31G/5 445122
Herberts Corners Bog	10	NESS 20: 2 km N of Herberts Corners, Osgoode	31G/4 555085
Heron Gate Woods	1	urban woodland area in southeastern Ottawa	31G/5 495245
Highway 44	1	NESS 412: between March Road (formerly Hwy 44) and McGee Side Road W from Highway 417, West Carleton	31 F/8 180175
Highway 7, Dwyer Hill	3	woodland, meadow and quarry near Dwyer Hill Road, Goulbourn	31 F/1 190065
Highway 7 North	12	NESS 419: extensive upland area (excluding Poole Creek Wetland Complex) west of Stittsville and north of Highway 7, Goulbourn/ West Carleton	31G/4 230000
Hope Cloutier Park (Ravine Park)	1	urban park along tributary of Carp River in Glen Cairn, Kanata	31G/5 316161
Horseshoe Bay	9	small Ottawa River bay east of Constance Bay, West Carleton	31 F/8 179377
Hospital Woods	1	Woodland area northeast of General Hospital main campus, Alta Vista	31G/5 495280
Hunt Club Creek	5	stream corridor and headwater woods from Macdonald-Cartier International Airport to Rideau River, Gloucester	31G/5 455208
Huntley Wetland	7	wetland along Highway 7, west of Stittsville, Goulbourn	31G/4 217080
Huntley Creek	1	Carp River tributary from Manion Corners through Huntley, West Carleton	31G/5 245175
Jinkinson Road	4	woodlands and alvar 6.5 km SW of Stittsville, Goulbourn	31G/4 22083
Kars	2	Rideau River at Kars, Rideau Tp.	31G/4 495000
Kinburn	2	vicinity of village along Kinburn Road, West Carleton	31 F/8 070270
Kinburn Clay Plain Woods	6	NESS 533: 2 km E of Kinburn along E side John Shaw Road, West Carleton	31 F/8 090270
Lanark Black Maple Woods	1	creek valley 2 km northeast of Pakenham, West Carleton	31 F/8 223004
Leitrim Wetland - see Albion Wetland
Leitrim	3	vicinity of village along Bank Street (Highway 31), Gloucester	31G/5 530199
Lemieux Islands	3	shore and adjacent aquatic habitat of Ottawa River Islands at Little Chaudiere Rapids	31G/5 430294
Limestone Road	3	NESS 536: woodland and alvar north of Kinburn Road along Limestone Road, West Carleton	31 F/8 095325
Little's Woods	2	NESS 10: woodland south of Springhill Road 4 km southeast of Metcalfe, Osgoode	31 F/3 645046
Loggers Way Woods	1	outcrop and woodland north of Kinburn, West Carleton	31 F/8 047285
Long Swamp	34	NESS 407: wetland forest in Cody Creek headwaters, Goulbourn/ West Carleton	31 F/1 170090
MacSkimming Woods	6	NESS 41: woodland 1.5 km east of Becketts Creek, Cumberland	31G/11 735395
Magladry Road South	16	NESS 62: extensive woodland 4 km south of Sarsfield, Cumberland	31G/6 750285
Manion Corners	2	vicinity of settlement, West Carleton	31 F/8 165120
Manotick	3	woodlands west from town, Rideau Tp.	31G/4 450080
Manotick ANSI	2	NESS 504: woodlots north and south of Century Road, Manotick, Rideau Tp.	31G/4 460065
Manotick Station	2	vicinity of hamlet, Osgoode	31G/5 510117
Manotick Station South	3	NESS 15: woodland south of Manotick Station, Osgoode	31G/4 510100
Marathon West	1	NESS 405: south of Highway 417 between Panmure and March Roads, West Carleton	31 F/8 125185
Marathon Forest	17	NESS 404: N of Highway 417 between Grants SR and Vaughn Road ca 4 km SW of of Marathon Village	31 F/8 095215
Marlborough Forest	78	NESS 422: (including Richmond and Phragmites fens, Munster Road Bog, Flood Road alvar, Paden Road Alvar, Cedar Grove Trail, Brassils Creek) - extensive woodland and wetland complex south of Richmond, Goulbourn/ Rideau Tp.	31G/4 355955
Marshall Bay	7	NESS 527: woodland and Ottawa River shore at Mississippi River mouth, West Carleton	31 F/8 985322
McCarthy Road ESA	2	former Ottawa Ecologically Sensitive Area; urban woodlot south of Mooneys Bay, Ottawa	31G/5 470225
Mer Bleue Conservation Area	73	NESS 110: extensive peatland and upland south of Blackburn Hamlet, Gloucester	31G/6 610280
Merivale	3	woodland west of Merivale, Nepean	31G/5 425195
Metcalfe North	4	NESS 24: woodland north of Metcalfe, Osgoode	31G/3 610100
Metcalfe	2	vicinity of village, Osgoode	31G/3 630090
Montfort Woods	2	urban woodlot east of Aviation Parkway by Montfort Hospital	31G/5 499329
Moores Corners	1	NESS 541: woodland and wetland area 5 kms northwest of North Gower	31G/4 390000
Morgan’s Grant Woods	1	urban park in Morgan’s Grant, Kanata	31G/5 270220
Morris Island	33	NESS 526: (including Lavergne Point, Lavergne Bay, Morris island CA, Mississippi Snye and Chats Dam) - extensive upland and wetland complex at Ottawa River, West Carleton	31 F/8 025327
Mud Creek	1	tributary of Green Creek south of Blackburn Hamlet, Gloucester	31G/5 555300
Mud Pond	25	NESS 516 (in part): between Riddell Drive and Kirwin Road, Kanata	31G/5 265275
Navan	3	woodlands in vicinity of village, Cumberland	31G/6 665295
North Osgoode Complex	4	NESS 23: woodland area southeast of Greely, Osgoode	31G/5 590120
North Gower	5	woodlots in vicinity of village, Rideau Tp.	31G/4 440980
North Castor River	5	NESS 28: valley along tributary of Castor River, Gloucester	31G/6 650140
NRC Woods	1	large urban woodland around NRC/ CSIS complex in Carson Grove, Ottawa	31G/5 517317
NW Vernon	1	NESS 7: woodland 1.5 km northwest of Vernon, Osgoode	31G/3 010620
O'Toole Road	2	NESS 48: woodland complex northwest of Cardinal Creek, Cumberland	31G/6 665375
Ont. Land Corp	31	NESS 83: south of Highway 417 between Anderson Rd and Boundary Road, Gloucester	31G/5 575225
Osgoode	1	vicinity of village, Osgoode	31G/4 520990
Osgoode Swamp	18	NESS 6: south from Greely, Osgoode	31G/4 560040
Ottawa West	1	western portion of urban core of Ottawa	31G/5 400220
Pana Road	4	NESS 34: woodland 3 km east of Metcalfe, Osgoode	31G/6 650110
Panmure Alvar	9	NESS 402: extensive alvar and forest area 3 km west of Panmure settlement, West Carleton	31 F/8 040190
Petrie Islands	25	NESS 47 (in part): alluvial Ottawa River islands and associated wetlands, Gloucester	31G/6 610380
Pine Grove Forest	16	NESS 102: extensive woodland and wetland area 3 km north of Leitrim	31G/5 530230
Pinecrest Creek	1	small creek and adjacent woodland between Britannia Heights and Whitehave, Ottawa	31G/5 385233
Pinhey Forest	11	NESS 511: woodland area in Merivale Gardens, Nepean	31G/5 435195
Pleasant Park Woods ESA	3	former Ottawa Ecologically Sensitive Area; urban woodlot in Alta Vista, Ottawa	31G/5 493267
Poole Creek wetland complex	9	composite of Upper and Lower Poole Creek and North Goulbourn Wetlands, Stittsville	31G/4 255115
Queenswood Forest	3	NESS 47 (in part): woodland along Ottawa River shore, Orleans	31G/5 605377
Queenswood Heights Wetland	2	minor tributary of Ottawa River, Orleans	31G/5 598352
Ramsayville	1	vicinity of settlement, southwest of Mer Bleue, Gloucester	31G/5 555250
Regional Forest - see Marlborough Forest
Rideau Carleton Woodland	1	low woodland and wetland area east of racetrack, Gloucester	31G/5 535165
Rideau River Provincial Park	1	Rideau River shoreline I km northeast of Becketts Landing, Rideau Tp.	31G/4 470895
Rideau River (Alta Vista)	1	rivershore in northern Altva Vista	31G/5 477280
Rideau Third Line	1	NESS 503: woodland 3 km north of North Gower, Rideau Tp.	31G/4 435005
Riverside Park	2	NESS 516: Ottawa River shore ca. 4 km NE of Harwood Plain, Kanata	31G/5 277287
Rockcliffe	6	vicinity of village, Rockcliffe Park	31G/5 470330
Rockcliffe Park ESA	8	former Ottawa Ecologically Sensitive Area; Ottawa Rivershore cliff and forest area, Rockcliffe Park	31G/5 461330
Rothbourne Road	1	NESS 305: E of Highway 7, N of Hazeldean Road, W of Stittsville, Goulbourn	31G/5 245120
Sarsfield	1	vicinity of village, Cumberland	31G/6 730320
Severn Street woods	1	urban woodland in Queensway Terrace North, Ottawa	31G/5 387227
Shirleys Bay (Shirleys Brook)	46	NESS 516 (in part): including Innis Point, Shirleys Brook, Watts Creek - extensive Ottawa River wetland and forest complex, Kanata/ Nepean	31G/5 275255
South March Highlands	40	NESS 539; extensive forest and outcrop complex, Kanata	31G/5 260200
South Castor River West	1	NESS 11: 5.5 km SSE of Metcalfe, Osgoode	31G/3 660045
South Gloucester	41	NESS 95: forest and woodland escarpment complex northeast of South Gloucester settlement, Gloucester	31G/5 565155
Springhill Bog - see Osgoode Swamp
Springhill	1	NESS 9; 3.5 km south of Metcalfe, Osgoode	31G/3 625048
Stanleys Corners West	1	NESS 310: woodland southwest of Stanleys Corners, Goulbourn	31G/4 285085
Stillwater Creek	7	creek corridor into Ottawa River at Crystal Beach, Nepean	31G/5 353218
Stittsville West	5	NESS 306: southwest of Stittsville to Jinkinson Road, Goulbourn	31G/5 250090
Stittsville	10	woodlands in vicinity of village, Goulbourn	31G/5 285125
Stony Swamp CA	70	NESS 509: extensive woodland and wetland headwaters complex, northern Nepean	31G/5 350160
Third Line West Carleton Woodlot	2	Ness 529: complex of small woodlots by Hwy 417 Mississippi River bridge, West Carleton	31 F/8 005265
Torbolton Ridge Road	4	NESS 523: extensive forest and outcrop area 3 km northeast of Fitzroy Harbour, West Carleton	31 F/8 090380
Upper Jock River	7	wetlands along tributary of Rideau River downstream of Richmond, Goulbourn	31G/4 365080
Upper Dwyer Hill Woods	3	NESS 529: Upper Dwyer Hill Road 1 km northwest of Mississippi River, West Carleton	31 F/8 005265
Vanier	1	urban woodlot by Beechwood Cemetery, Vanier	31G/5 482326
Vars East	27	NESS 76: extensive woodland immediately east of Vars, Cumberland	31G/6 670230
Vars West	18	NESS 79: extensive woodland immediately west of Vars, Cumberland	31G/6 680220
Vernon Woods	3	NESS 8: woodland immediately west of Vernon, Osgoode	31G/3 430000
Vincent Massey Park	10	urban upland and swamp forest complex along Rideau River, Ottawa South	31G/5 457256
Wattersons Corners	1	1.5 km south of settlement, Rideau Tp.	31G/4 458049
West Osgoode Wetland	3	NESS 5; southeast of Manotick in eastern Osgoode	31G/4 525045
Westboro Beach	2	Ottawa River shore at Kitchissippi Point, Westboro	31G/5 403271
Woodlawn	1	woodlot north of village, West Carleton	31 F/8 145345
Woodridge	4	Ottawa River shore near Quyon ferry, West Carleton	31 F/9 402045

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[1]t 1184019104Since one of the parents is RS, shouldn’t the hybrid be also?