This Site Uses JavaScript

Our Web site makes use of JavaScript for important functions like selecting pages for viewing (site navigation). We have detected that your Web browser does not support JavaScript, or else you have chosen to disable JavaScript on your browser.

If JavaScript is disabled in your browser, please turn it back on and then reload this page. If your present browser does not allow the use of JavaScript, please consider switching to one that does, as this will enable you to view this and many other Web sites to their best effect. Common browsers that do support JavaScript include: Netscape Navigator 2.0x, Netscape Navigator 3.0x, Netscape Navigator 4.0x, Microsoft Internet Explorer 3.0x, and Microsoft Internet Explorer 4.0.

Species at Risk:

Vascular Plants in Canada

Back to Species at Risk Index

Common Name

Scientific Name

Population Name

Historical Range of Occurrence

Extinction Date

Assessment Date

Category

Group

Spring Blue-eyed Mary

Collinsia verna

 

ON

not observed since 1954

May 2000

Extirpated

Vascular Plants

Tick-trefoil, Illinois

Desmodium illinoense

 

ON

not observed since 1888

May 2000

Extirpated

Vascular Plants


Common Name

Scientific Name

Population Name

Range of Occurrence

Assessment Date

Category

Group

Agalinis, Gattinger's

Agalinis gattingeri

 

ON

May 2001

Endangered

Vascular Plants

Agalinis, Skinner's

Agalinis skinneriana

 

ON

May 2000

Endangered

Vascular Plants

Ammannia, Scarlet

Ammannia robusta

 

BC ON

May 2001

Endangered

Vascular Plants

Ash, Blue

Fraxinus quadrangulata

 

ON

Nov 2000

Special Concern

Vascular Plants

Aster, Anticosti

Symphyotrichum anticostense

 

QC NB

May 2000

Threatened

Vascular Plants

Aster, Bathurst

Symphyotrichum subulatum

Bathurst population

NB

Apr 1992

Special Concern

Vascular Plants

Aster, Crooked-stem

Symphyotrichum prenanthoides

 

ON

May 2002

Threatened

Vascular Plants

Aster, Gulf of St. Lawrence

Symphyotrichum laurentianum

 

QC NB PE

Apr 1989

Special Concern

Vascular Plants

Aster, Short's

Symphyotrichum shortii

 

ON

Apr 1999

Not at Risk

Vascular Plants

Aster, Western Silvery

Symphyotrichum sericeum

 

MB ON

May 2000

Threatened

Vascular Plants

Aster, White Wood

Eurybia divaricata

 

ON QC

Nov 2002

Threatened

Vascular Plants

Aster, White-top

Sericocarpus rigidus

 

BC

May 2000

Threatened

Vascular Plants

Aster, Willowleaf

Symphyotrichum praealtum

 

ON

May 2003

Threatened

Vascular Plants

Aster, Yukon

Symphyotrichum yukonense

 

YT NT

Apr 1996

Not at Risk

Vascular Plants

Avens, Eastern Mountain

Geum peckii

 

NS

May 2000

Endangered

Vascular Plants

Balsamroot, Deltoid

Balsamorhiza deltoidea

 

BC

May 2000

Endangered

Vascular Plants

Barley, Little

Hordeum pusillum

 

AB

Apr 1993

Data Deficient

Vascular Plants

Bartonia, Branched

Bartonia paniculata ssp. paniculata

 

ON

Nov 2003

Threatened

Vascular Plants

Beggarticks, Vancouver Island

Bidens amplissima

 

BC

Nov 2001

Special Concern

Vascular Plants

Blazing Star, Dense

Liatris spicata

 

ON

May 2001

Threatened

Vascular Plants

Blue-flag, Western

Iris missouriensis

 

AB

May 2000

Threatened

Vascular Plants

Bluehearts

Buchnera americana

 

ON

May 2000

Endangered

Vascular Plants

Braya, Fernald's

Braya fernaldii

 

NL

May 2000

Threatened

Vascular Plants

Braya, Long's

Braya longii

 

NL

May 2000

Endangered

Vascular Plants

Brickellia, Large-flowered

Brickellia grandiflora

 

BC AB

Apr 1996

Not at Risk

Vascular Plants

Buffalograss

Buchloë dactyloides

 

SK MB

Nov 2001

Threatened

Vascular Plants

Bugbane, Tall

Actaea elata

 

BC

May 2001

Endangered

Vascular Plants

Bulrush, Bashful

Trichophorum planifolium

 

ON

May 2000

Endangered

Vascular Plants

Bulrush, Long's

Scirpus longii

 

NS

Apr 1994

Special Concern

Vascular Plants

Bush-clover, Slender

Lespedeza virginica

 

ON

May 2000

Endangered

Vascular Plants

Buttercup, Water-plantain

Ranunculus alismaefolius var. alismaefolius

 

BC

May 2000

Endangered

Vascular Plants

Butternut

Juglans cinerea

 

NB ON QC

Nov 2003

Endangered

Vascular Plants

Cactus, Eastern Prickly Pear

Opuntia humifusa

 

ON

May 2000

Endangered

Vascular Plants

Catchfly, Coastal Scouler's

Silene scouleri ssp. grandis

 

BC

May 2003

Endangered

Vascular Plants

Chestnut, American

Castanea dentata

 

ON

Apr 1987

Threatened

Vascular Plants

Coffee-tree, Kentucky

Gymnocladus dioicus

 

ON

Nov 2000

Threatened

Vascular Plants

Colicroot

Aletris farinosa

 

ON

Nov 2000

Threatened

Vascular Plants

Collomia, Slender

Collomia tenella

 

BC

Nov 2003

Endangered

Vascular Plants

Columbo, American

Frasera caroliniensis

 

ON

Apr 1993

Special Concern

Vascular Plants

Coreopsis, Pink

Coreopsis rosea

 

NS

May 2000

Endangered

Vascular Plants

Corydalis, Scouler's

Corydalis scouleri

 

BC

May 2001

Threatened

Vascular Plants

Cryptanthe, Tiny

Cryptantha minima

 

AB SK

May 2000

Endangered

Vascular Plants

Daisy, Lakeside

Hymenoxys herbacea

 

ON

May 2002

Threatened

Vascular Plants

Deerberry

Vaccinium stamineum

 

ON

Nov 2000

Threatened

Vascular Plants

Fameflower

Talinum sediforme

 

BC

Apr 1990

Not at Risk

Vascular Plants

Fern, American Hart's-tongue

Asplenium scolopendrium

 

ON

Nov 2000

Special Concern

Vascular Plants

Fern, Broad Beech

Phegopteris hexagonoptera

 

ON QC

Apr 1983

Special Concern

Vascular Plants

Fern, Coastal Wood

Dryopteris arguta

 

BC

Nov 2001

Special Concern

Vascular Plants

Fern, Lemmon's Holly

Polystichum lemmonii

 

BC

May 2003

Threatened

Vascular Plants

Fern, Southern Maidenhair

Adiantum capillus-veneris

 

BC

May 2000

Endangered

Vascular Plants

Fleabane, Dwarf

Erigeron radicatus

 

AB SK

Apr 1996

Not at Risk

Vascular Plants

Fleabane, Provancher's

Erigeron philadelphicus var. provancheri

 

QC

Apr 1992

Special Concern

Vascular Plants

Fringed-orchid, Eastern Prairie

Platanthera leucophaea

 

ON

May 2003

Endangered

Vascular Plants

Fringed-orchid, Western Prairie

Platanthera praeclara

 

MB

May 2000

Endangered

Vascular Plants

Gentian, Plymouth

Sabatia kennedyana

 

NS

May 2000

Threatened

Vascular Plants

Gentian, Victorin's

Gentianopsis victorinii

 

QC

Apr 1987

Special Concern

Vascular Plants

Gentian, White Prairie

Gentiana alba

 

ON

May 2001

Endangered

Vascular Plants

Ginseng, American

Panax quinquefolius

 

ON QC

May 2000

Endangered

Vascular Plants

Goat's-rue, Virginia

Tephrosia virginiana

 

ON

May 2000

Endangered

Vascular Plants

Golden Crest

Lophiola aurea

 

NS

May 2000

Threatened

Vascular Plants

Goldenrod, Riddell's

Solidago riddellii

 

MB ON

Nov 2000

Special Concern

Vascular Plants

Goldenrod, Showy

Solidago speciosa

 

ON

May 2000

Endangered

Vascular Plants

Goldenseal

Hydrastis canadensis

 

ON

May 2000

Threatened

Vascular Plants

Goldenweed, Northern Mock

Stenotus borealis

 

YT

Apr 1997

Not at Risk

Vascular Plants

Goldenweed, Rabbit-brush

Ericameria bloomeri

 

BC

Apr 1997

Data Deficient

Vascular Plants

Goosefoot, Smooth

Chenopodium subglabrum

 

AB SK MB

Apr 1992

Special Concern

Vascular Plants

Grass, Forked Three-awned

Aristida basiramea

 

ON QC

Nov 2002

Endangered

Vascular Plants

Green Dragon

Arisaema dracontium

 

ON QC

Apr 1984

Special Concern

Vascular Plants

Greenbrier, Round-leaved

Smilax rotundifolia

Great Lakes Plains population

ON

May 2001

Threatened

Vascular Plants

Hackberry, Dwarf

Celtis tenuifolia

 

ON

Nov 2003

Threatened

Vascular Plants

Hairgrass, Mackenzie

Deschampsia mackenzieana

 

SK

Nov 2001

Special Concern

Vascular Plants

Helleborine, Giant

Epipactis gigantea

 

BC

Apr 1998

Special Concern

Vascular Plants

Hoptree, Common

Ptelea trifoliata

 

ON

Nov 2002

Threatened

Vascular Plants

Hyacinth, Wild

Camassia scilloides

 

ON

May 2002

Threatened

Vascular Plants

Indian-plantain, Tuberous

Arnoglossum plantagineum

 

ON

May 2002

Special Concern

Vascular Plants

Jacob's-ladder, Van Brunt's

Polemonium vanbruntiae

 

QC

Nov 2002

Threatened

Vascular Plants

Lady's-slipper, Small White

Cypripedium candidum

 

MB ON

May 2000

Endangered

Vascular Plants

Lilaeopsis, Eastern

Lilaeopsis chinensis

 

NS

Apr 1987

Special Concern

Vascular Plants

Lily, Lyall's Mariposa

Calochortus lyallii

 

BC

May 2001

Threatened

Vascular Plants

Lipocarpha, Small-flowered

Lipocarpha micrantha

 

BC ON

Nov 2002

Endangered

Vascular Plants

Locoweed, Hare-footed

Oxytropis lagopus

 

AB

Apr 1995

Special Concern

Vascular Plants

Lotus, Seaside Birds-foot

Lotus formosissimus

 

BC

May 2000

Endangered

Vascular Plants

Lousewort, Furbish's

Pedicularis furbishiae

 

NB

May 2000

Endangered

Vascular Plants

Lupine, Prairie

Lupinus lepidus var. lepidus

 

BC

May 2000

Endangered

Vascular Plants

Lupine, Streambank

Lupinus rivularis

 

BC

Nov 2002

Endangered

Vascular Plants

Meadowfoam, Macoun's

Limnanthes macounii

 

BC

Apr 1988

Special Concern

Vascular Plants

Mermaid, False

Floerkea proserpinacoides

 

ON QC NS

Apr 1984

Not at Risk

Vascular Plants

Milk-vetch, Fernald's

Astragalus robbinsii var. fernaldii

 

QC NL

Nov 2001

Special Concern

Vascular Plants

Milkwort, Pink

Polygala incarnata

 

ON

May 2000

Endangered

Vascular Plants

Mosquito-fern, Mexican

Azolla mexicana

 

BC

May 2000

Threatened

Vascular Plants

Mountain-mint, Hoary

Pycnanthemum incanum

 

ON

May 2000

Endangered

Vascular Plants

Mouse-ear-cress, Slender

Halimolobos virgata

 

AB SK

May 2000

Threatened

Vascular Plants

Mulberry, Red

Morus rubra

 

ON

May 2000

Endangered

Vascular Plants

Oak, Shumard

Quercus shumardii

 

ON

Apr 1999

Special Concern

Vascular Plants

Orchid, Phantom

Cephalanthera austiniae

 

BC

May 2000

Threatened

Vascular Plants

Owl-clover, Bearded

Triphysaria versicolor ssp. versicolor

 

BC

May 2000

Endangered

Vascular Plants

Paintbrush, Golden

Castilleja levisecta

 

BC

May 2000

Endangered

Vascular Plants

Pepperbush, Sweet

Clethra alnifolia

 

NS

May 2001

Special Concern

Vascular Plants

Phlox, Blue

Phlox alyssifolia

 

AB SK

Apr 1996

Not at Risk

Vascular Plants

Pink, Rush

Stephanomeria runcinata

 

AB SK

Apr 1996

Not at Risk

Vascular Plants

Pinweed, Impoverished

Lechea intermedia var. depauperata

 

SK

Apr 1997

Data Deficient

Vascular Plants

Plantain, Heart-leaved

Plantago cordata

 

ON

May 2000

Endangered

Vascular Plants

Pogonia, Large Whorled

Isotria verticillata

 

ON

May 2000

Endangered

Vascular Plants

Pogonia, Nodding

Triphora trianthophora

 

ON

May 2000

Endangered

Vascular Plants

Pogonia, Small Whorled

Isotria medeoloides

 

ON

May 2000

Endangered

Vascular Plants

Pondweed, Hill's

Potamogeton hillii

 

ON

Apr 1986

Special Concern

Vascular Plants

Prairie-clover, Hairy

Dalea villosa var. villosa

 

SK MB

May 2000

Threatened

Vascular Plants

Quillwort, Bolander's

Isoëtes bolanderi

 

AB

Apr 1995

Special Concern

Vascular Plants

Quillwort, Engelmann's

Isoëtes engelmannii

 

ON

May 2001

Endangered

Vascular Plants

Redroot

Lachnanthes caroliana

 

NS

May 2000

Threatened

Vascular Plants

Rhododendron, Pacific

Rhododendron macrophyllum

 

BC

Apr 1997

Not at Risk

Vascular Plants

Rose, Climbing Prairie

Rosa setigera

 

ON

May 2003

Special Concern

Vascular Plants

Rose-mallow, Swamp

Hibiscus moscheutos

 

ON

Apr 1987

Special Concern

Vascular Plants

Rue-anemone, False

Enemion biternatum

 

ON

Apr 1990

Special Concern

Vascular Plants

Rush, Kellogg's

Juncus kelloggii

 

BC

May 2003

Endangered

Vascular Plants

Rush, New Jersey

Juncus caesariensis

 

NS

Apr 1992

Special Concern

Vascular Plants

Sagebrush, Wood's

Artemisia rupestris ssp. woodii

 

YT

Apr 1997

Not at Risk

Vascular Plants

Sand-verbena, Small-flowered

Tripterocalyx micranthus

 

AB SK

Nov 2002

Endangered

Vascular Plants

Sanicle, Bear's-foot

Sanicula arctopoides

 

BC

May 2001

Endangered

Vascular Plants

Sanicle, Purple

Sanicula bipinnatifida

 

BC

May 2001

Threatened

Vascular Plants

Sedge, False Hop

Carex lupuliformis

 

ON QC

May 2000

Endangered

Vascular Plants

Sedge, Juniper

Carex juniperorum

 

ON

May 2000

Endangered

Vascular Plants

Sedge, Nebraska

Carex nebrascensis

 

AB

Apr 1995

Not at Risk

Vascular Plants

Soapweed

Yucca glauca

 

AB

May 2000

Threatened

Vascular Plants

Spiderwort, Western

Tradescantia occidentalis

 

AB SK MB

Nov 2002

Threatened

Vascular Plants

Spike-rush, Horsetail

Eleocharis equisetoides

 

ON

Nov 2000

Endangered

Vascular Plants

Spike-rush, Tubercled

Eleocharis tuberculosa

 

NS

May 2000

Threatened

Vascular Plants

Stitchwort, Sand

Stellaria arenicola

 

AB SK

Apr 1992

Not at Risk

Vascular Plants

Sundew, Thread-leaved

Drosera filiformis

 

NS

May 2001

Endangered

Vascular Plants

Tansy, Floccose

Tanacetum huronense var. floccosum

 

SK

May 2000

Special Concern

Vascular Plants

Thistle, Pitcher's

Cirsium pitcheri

 

ON

May 2000

Endangered

Vascular Plants

Thrift, Athabasca

Armeria maritima ssp. interior

 

SK

May 2002

Special Concern

Vascular Plants

Tonella, Small-flowered

Tonella tenella

 

BC

Nov 2003

Endangered

Vascular Plants

Toothcup

Rotala ramosior

 

BC ON

May 2000

Endangered

Vascular Plants

Tree, Cucumber

Magnolia acuminata

 

ON

May 2000

Endangered

Vascular Plants

Trillium, Drooping

Trillium flexipes

 

ON

May 2000

Endangered

Vascular Plants

Triteleia, Howell's

Triteleia howellii

 

BC

May 2003

Endangered

Vascular Plants

Twayblade, Purple

Liparis liliifolia

 

ON

May 2001

Endangered

Vascular Plants

Violet, Bird's-foot

Viola pedata

 

ON

May 2002

Endangered

Vascular Plants

Violet, Yellow Montane

Viola praemorsa ssp. praemorsa

 

BC

May 2000

Threatened

Vascular Plants

Wallflower, Narrow-leaved

Erysimum angustatum

 

YT

Apr 1993

Not at Risk

Vascular Plants

Water-hemlock, Victorin's

Cicuta maculata var. victorinii

 

QC

Apr 1987

Special Concern

Vascular Plants

Water-pennywort

Hydrocotyle umbellata

 

NS

May 2000

Threatened

Vascular Plants

Water-willow, American

Justicia americana

 

ON QC

May 2000

Threatened

Vascular Plants

Whitlow-grass, Kananaskis

Draba kananaskis

 

AB

Apr 1992

Data Deficient

Vascular Plants

Willow, Barrens

Salix jejuna

 

NL

May 2001

Endangered

Vascular Plants

Willow, Felt-leaf

Salix silicicola

 

NU SK

May 2000

Special Concern

Vascular Plants

Willow, Sand-dune Short-capsuled

Salix brachycarpa var. psammophila

 

SK

May 2000

Special Concern

Vascular Plants

Willow, Turnor's

Salix turnorii

 

SK

May 2000

Special Concern

Vascular Plants

Willow, Tyrrell's

Salix tyrrellii

 

NT SK

Apr 1999

Not at Risk

Vascular Plants

Wintergreen, Spotted

Chimaphila maculata

 

ON QC

May 2000

Endangered

Vascular Plants

Wood-poppy

Stylophorum diphyllum

 

ON

May 2000

Endangered

Vascular Plants

Woodsia, Blunt-lobed

Woodsia obtusa

 

ON QC

May 2000

Endangered

Vascular Plants

Woolly-heads, Dwarf

Psilocarphus brevissimus

 

BC

Nov 2003

Endangered

Vascular Plants

Woolly-heads, Slender

Psilocarphus tenellus var. tenellus

 

BC

Apr 1996

Not at Risk

Vascular Plants

Woolly-heads, Tall

Psilocarphus elatior

Pacific population

BC

May 2001

Endangered

Vascular Plants

Woolly-heads, Tall

Psilocarphus elatior

Prairie population

AB SK

May 2001

Special Concern

Vascular Plants

Yarrow, Large-headed Woolly

Achillea millefolium var. megacephalum

 

SK

May 2000

Special Concern

Vascular Plants