|
|
|
|
|
|
|
|
|
|
|
| Heliopsis helianthoides var. occidentalis (T.R. Fisher) Steyermark | Species Image Gallery (opens in a new window) |
||||||||
| 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 |
||||||||
| Nature Conservancy Status: | G5 S1 |
||||||||
| Saskatchewan
Species at Risk Status: |
None |
||||||||
| COSEWIC Status: | None |
||||||||
| Smooth oxeye 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 persistent woody stem or stout rootstocks | ||||||||
| Stems: | firm, branched upwards | ||||||||
| Leaves: | opposite, stalked, 5 – 15 cm long, 3 – 8 cm wide, firm, 3-nerved, oval to broadly lance-shaped, base squared to rounded, tip tapered, rough-hairy, margin saw-toothed | ||||||||
| Inflorescence: | heads solitary to few, 1 – 2.5 cm broad; with ray and disc flowers; stalk elongate, thickened below head; bracts in 1 or 2 subequal series, lance-shaped, green, rough-hairy; receptacle cone-shaped, elongating at maturity, bracts on receptacle concave and clasping both ray and disc flowers | ||||||||
| Flowers: | ray flowers 10 – 17, to 4 cm long, usually fertile, yellow, persistent; disc florets many, female, fertile | ||||||||
| Fruits: | ray achenes 3-angled, disc achenes 4-angled, hairless; pappus absent or crown-shaped | ||||||||
| |||||||||
