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| Clematis occidentalis var. grosseserrata (Rydb.) J. Pringle | Species Image Gallery (opens in a new window) |
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| TAXONOMY | |||||||||||||||
| Family: | Ranunucalaceae | ||||||||||||||
| Genus: | Clematis | ||||||||||||||
| Species Synonyms: | Clematis occidentalis ssp. grosseserrata
(Rydb.) Taylor & MacBryde Clematis columbiana (Nutt.) T. & G. Clematis columbiana var. tenuiloba (A. Gray) J. S. Pringle Clematis verticillaris DC. var. columbiana |
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| Common Names: | western blue virginsbower Columbian virginsbower northern blue virginsbower |
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| DISTRIBUTION | |||||||||||||||
| Canada: | British Columbia – Alberta – southwestern Saskatchewan and east-central Saskatchewan | ||||||||||||||
| Saskatchewan: | southwestern and east-central Saskatchewan; Cypress Hills, Pasquia Hills | ||||||||||||||
| Ecoregion: | Cypress Upland, Mid-Boreal Lowland | ||||||||||||||
| HABITAT | |||||||||||||||
| Saskatchewan: | climbing over shrubs on wooded slopes | ||||||||||||||
| Associated Species: | Betula sp., Cornus canadensis, Linnaea borealis, Picea glauca, Populus sp., Trientalis borealis | ||||||||||||||
| RARITY STATUS | |||||||||||||||
| Provincial
Status According to Harms (2003): |
Threatened |
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| Nature Conservancy Status: | G5T4T5 S2 |
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| Saskatchewan
Species at Risk Status: |
None |
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| COSEWIC Status: | None |
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| Clematis occidentalis var. grosseserrata is threatened because it is rare or uncommon in Saskatchewan. It occurs in two isolated areas in the province. No immediate threats are known but may occur in the future. | |||||||||||||||
| SPECIES DESCRIPTION | |||||||||||||||
| Height: | up to 2 m long | ||||||||||||||
| Roots: | rhizomes present | ||||||||||||||
| Stems: | viny or trailing | ||||||||||||||
| Leaves: | opposite, 2 – 3-ternate | ||||||||||||||
| Leaflets: | 3, long-petioled, diverse in shape, base cordate, apex acuminate, more or less succulent, 1.5 – 5 mm wide, margins serrate or entire | ||||||||||||||
| Inflorescence: | flowers solitary, long-peduncled | ||||||||||||||
| Flowers: | sepals 4, 1.5 – 5 cm long, lanceolate, to ovate violet-blue, villous; corolla absent or present as small staminodia; stamens numerous, carpels numerous | ||||||||||||||
| Fruits: | aggregate of achenes, achenes villous, styles persistent and plumose | ||||||||||||||
| Other: | climbing via tendrils | ||||||||||||||
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