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| Tanacetum bipinnatum ssp. huronense (Nutt.) Breitung | Species Image Gallery (opens in a new window) |
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| TAXONOMY | |||||||||
| Family: | Asteraceae or Compositae | ||||||||
| Genus: | Tanacetum | ||||||||
| Species Synonyms: | Tanacetum huronese var. bifarium
Fern. Tanacetum huronese var. floccosum Raup Tanacetum huronese var. johannense Fern. Tanacetum huronese var. terrae-novae Fern. Tanacetum huronese Nutt. Chrysanthemum bipinnatum ssp. huronese (Nutt.) Hultén |
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| Common Names: | floccose tansy Lake Huron tansy |
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| DISTRIBUTION | |||||||||
| Canada: | northwestern Saskatchewan | ||||||||
| Saskatchewan: | northwestern Saskatchewan; Lake Athabasca | ||||||||
| Ecoregion: | Athabasca Plain | ||||||||
| HABITAT | |||||||||
| Saskatchewan: | open blowouts in sand dunes and sandy lake beaches | ||||||||
| RARITY STATUS | |||||||||
| Provincial
Status According to Harms (2003): |
Vulnerable |
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| Nature Conservancy Status: | G4G5 S2S3 T1 |
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| Saskatchewan
Species at Risk Status: |
Vulnerable |
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| COSEWIC Status: | Special Concern |
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| Tanacetum bipinnatum ssp. huronense is vulnerable because it is restricted and is endemic to one region in Saskatchewan. This species is usually quite numerous, but in limited local areas. | |||||||||
| SPECIES DESCRIPTION | |||||||||
| Height: | 10 – 80 cm tall | ||||||||
| Roots: | taproots to slender rhizomes | ||||||||
| Stems: | caudex thin; stems may be purplish, glabrous at base to densely villous upwards | ||||||||
| Leaves: | cauline, alternate, 3 or 4 to many, rachis scarcely or not at all winged, 5 – 20 cm long, 2 – 8 cm wide, reduced upwards, oblong, densely villous, at least when young, hairs white to yellowish, 2 – 3 times pinnately lobed | ||||||||
| Leaflets: | opposite to subopposite, lanceolate to ovate | ||||||||
| Inflorescence: | heads 5 – 10, 1 – 2 cm wide, terminal, corymbiform cymes dense to open; peduncles densely white to yellow villous; phyllaries in 2 series, imbricate, densely villous, tips and margins more or less scarious; receptacle convex, naked | ||||||||
| Flowers: | ligulate florets few, 1 – 1.5 mm long, conspicuous, marginal, pistillate, yellow; tubular florets many, perfect, yellow | ||||||||
| Fruits: | achenes angled or ribbed, commonly glandular; pappus coroniform or absent | ||||||||
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