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| Heliopsis helianthoides var. occidentalis (T.R. Fisher) Steyermark | Species Image Gallery (opens in a new window) |
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| TAXONOMY | |||||||||
| Family: | Asteraceae or Compositae | ||||||||
| Genus: | Helianthus | ||||||||
| Species Synonyms: | Heliopsis helianthoides ssp. occidentalis T.R. Fisher | ||||||||
| Common Names: | smooth oxeye | ||||||||
| DISTRIBUTION | |||||||||
| Canada: | southeastern Saskatchewan – Prince Edward Island | ||||||||
| Saskatchewan: | southeastern Saskatchewan; Tisdale – McKague – Alida | ||||||||
| Ecoregion: | Aspen Parkland, Boreal Transition | ||||||||
| HABITAT | |||||||||
| Saskatchewan: | roadsides, woods, and meadows | ||||||||
| 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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| Heliopsis helianthoides var. occidentalis is endangered because it is somewhat regionally restricted in the province and the populations are almost always locally sparse. | |||||||||
| SPECIES DESCRIPTION | |||||||||
| Height: | 80 – 150 cm tall | ||||||||
| Roots: | fibrous-rooted caudex or stout rootstocks | ||||||||
| Stems: | firm, branched upwards | ||||||||
| Leaves: | cauline, opposite, petiolate; 5 – 15 cm long, 3 – 8 cm wide, firm, 3-nerved, ovate to broadly lanceolate, base truncate to rounded, apex acute to acuminate, scabrous, margin serrate | ||||||||
| Inflorescence: | heads solitary to few, 1 – 2.5 cm broad, radiate; peduncle elongate, thickened below head; involucre in 1 or 2 subequal series, lanceolate, green, scabrous; receptacle conical, elongating at maturity, chaffy bracts concave and clasping both ligulate and tubular florets | ||||||||
| Flowers: | ligulate florets 10 – 17, to 4 cm long, usually fertile, yellow, persistent; tubular florets many, pistillate, fertile | ||||||||
| Fruits: | ligulate achenes 3-angled, tubular achenes 4-angled, glabrous; pappus absent or coroniform | ||||||||
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