Trientalis europaea ssp. arctica (Fisch. ex Hook.) Hultén | Species Image Gallery (opens in a new window) |
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TAXONOMY | |||||||||
Family: | Primulaceae | ||||||||
Genus: | Trientalis | ||||||||
Species Synonyms: | Trientalis arctica Fish. ex Hook. Trientalis europaea var. arctica (Fish. ex Hook.) Ledeb. |
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Common Names: | arctic starflower European starflower |
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DISTRIBUTION | |||||||||
Canada: | Yukon – southwestern Mackenzie District, British Columbia – northern Alberta – northern Saskatchewan | ||||||||
Saskatchewan: | northern Saskatchewan; Lake Athabasca south shore – La Loche – Wathaman River | ||||||||
Ecoregion: | Mid-Boreal Upland, Churchill River Upland, Athabasca Plain | ||||||||
HABITAT | |||||||||
Saskatchewan: | mossy woods | ||||||||
Associated Species: | alder, birch and willow species | ||||||||
RARITY STATUS | |||||||||
Provincial
Status According to Harms (2003): |
Endangered |
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Nature Conservancy Status: | G5 S1 |
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Saskatchewan
Species at Risk Status: |
None |
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COSEWIC Status: | None |
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Arctic starflower is endangered because of extreme rarity in Saskatchewan. Local population sizes vary. No threats are known or anticipated for this species. | |||||||||
SPECIES DESCRIPTION | |||||||||
Height: | 4 – 15 cm | ||||||||
Roots: | slender | ||||||||
Stems: | erect, unbranched, often glandular above, bracts below leaves green | ||||||||
Leaves: | in one terminal whorl of 5 – 9 leaves, sessile or short-stalked, 2 – 6 cm long, inversely lance-shaped or egg-shaped, base wedge-shaped, tip tapered to obtuse, margin entire or nearly so | ||||||||
Inflorescence: | flowers solitary or few, axillary; stalks threadlike | ||||||||
Flowers: | sepals 5 – 7, linear, green; petals 8 – 15 mm wide, oval, apex abruptly tapered to a point, white; stamens usually 7, filaments united at base | ||||||||
Fruits: | capsule rounded; seeds few | ||||||||
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