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Species at Risk:

Vascular Plants, Lichen and Mosses Categorized as "Threatened" in Canada

Back to Species at Risk Index

Common Name

Scientific Name

Population Name

Range of Occurrence

Assessment Date

Category

Group

Bryum, Porsild's

Mielichhoferia macrocarpa

 

AB BC NL NU

Nov 2003

Threatened

Mosses

Moss, Haller's Apple

Bartramia halleriana

 

BC AB

Nov 2001

Threatened

Mosses

Aster, Anticosti

Symphyotrichum anticostense

 

QC NB

May 2000

Threatened

Vascular Plants

Aster, Crooked-stem

Symphyotrichum prenanthoides

 

ON

May 2002

Threatened

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

Bartonia, Branched

Bartonia paniculata ssp. paniculata

 

ON

Nov 2003

Threatened

Vascular Plants

Blazing Star, Dense

Liatris spicata

 

ON

May 2001

Threatened

Vascular Plants

Blue-flag, Western

Iris missouriensis

 

AB

May 2000

Threatened

Vascular Plants

Braya, Fernald's

Braya fernaldii

 

NL

May 2000

Threatened

Vascular Plants

Buffalograss

Buchloë dactyloides

 

SK MB

Nov 2001

Threatened

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

Corydalis, Scouler's

Corydalis scouleri

 

BC

May 2001

Threatened

Vascular Plants

Daisy, Lakeside

Hymenoxys herbacea

 

ON

May 2002

Threatened

Vascular Plants

Deerberry

Vaccinium stamineum

 

ON

Nov 2000

Threatened

Vascular Plants

Fern, Lemmon's Holly

Polystichum lemmonii

 

BC

May 2003

Threatened

Vascular Plants

Gentian, Plymouth

Sabatia kennedyana

 

NS

May 2000

Threatened

Vascular Plants

Golden Crest

Lophiola aurea

 

NS

May 2000

Threatened

Vascular Plants

Goldenseal

Hydrastis canadensis

 

ON

May 2000

Threatened

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

Hoptree, Common

Ptelea trifoliata

 

ON

Nov 2002

Threatened

Vascular Plants

Hyacinth, Wild

Camassia scilloides

 

ON

May 2002

Threatened

Vascular Plants

Jacob's-ladder, Van Brunt's

Polemonium vanbruntiae

 

QC

Nov 2002

Threatened

Vascular Plants

Lily, Lyall's Mariposa

Calochortus lyallii

 

BC

May 2001

Threatened

Vascular Plants

Mosquito-fern, Mexican

Azolla mexicana

 

BC

May 2000

Threatened

Vascular Plants

Mouse-ear-cress, Slender

Halimolobos virgata

 

AB SK

May 2000

Threatened

Vascular Plants

Orchid, Phantom

Cephalanthera austiniae

 

BC

May 2000

Threatened

Vascular Plants

Prairie-clover, Hairy

Dalea villosa var. villosa

 

SK MB

May 2000

Threatened

Vascular Plants

Redroot

Lachnanthes caroliana

 

NS

May 2000

Threatened

Vascular Plants

Sanicle, Purple

Sanicula bipinnatifida

 

BC

May 2001

Threatened

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, Tubercled

Eleocharis tuberculosa

 

NS

May 2000

Threatened

Vascular Plants

Violet, Yellow Montane

Viola praemorsa ssp. praemorsa

 

BC

May 2000

Threatened

Vascular Plants

Water-pennywort

Hydrocotyle umbellata

 

NS

May 2000

Threatened

Vascular Plants

Water-willow, American

Justicia americana

 

ON QC

May 2000

Threatened

Vascular Plants