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| Helenium autumnale var. grandiflorum (Nutt.) Torr. & Gray | Species Image Gallery (opens in a new window) |
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| TAXONOMY | |||||||||
| Family: | Asteraceae or Compositae | ||||||||
| Genus: | Helenium | ||||||||
| Species Synonyms: | Helenium macranthum Rydb. | ||||||||
| Common Names: | fall sneezeweed large-flowered sneezeweed common sneezeweed |
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| DISTRIBUTION | |||||||||
| Canada: | southern Mackenzie District – British Columbia – Saskatchewan | ||||||||
| Saskatchewan: | central – southeastern Saskatchewan; Ile-a-la-Crosse – Churchill River Valley – Souris River Valley | ||||||||
| Ecoregion: | Moist Mixed Grassland, Mid-Boreal Upland, Churchill River Upland | ||||||||
| HABITAT | |||||||||
| Saskatchewan: | thickets, meadows, and shores | ||||||||
| Associated Species: | Picea mariana, Populus tremuloides | ||||||||
| RARITY STATUS | |||||||||
| Provincial
Status According to Harms (2003): |
Vulnerable |
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| Nature Conservancy Status: | G5T3T5 |
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| Saskatchewan
Species at Risk Status: |
None |
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| COSEWIC Status: | None |
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| Helenium autumnale var. grandiflorum is listed as vulnerable in Saskatchewan but there is no information available regarding the designation of this species at risk. It is likely that this species, though it occurs over a wide range in the province, is uncommon. | |||||||||
| SPECIES DESCRIPTION | |||||||||
| Height: | 30 – 120 cm tall | ||||||||
| Roots: | fibrous, subrhizomatous | ||||||||
| Stems: | branched at top, round, glabrous, winged | ||||||||
| Leaves: | cauline, alternate, sessile, not reduced much upwards, 4 – 15 cm long, to 4 cm wide, lanceolate to elliptic or ovate, apex acute, resinous-punctate, margin entire | ||||||||
| Inflorescence: | heads several in a leafy cluster, 1 – 2 cm across; peduncles long; phyllaries 14 – 18, reflexed at maturity, narrow, attenuate; receptacle globose | ||||||||
| Flowers: | ligulate florets 10 – 20, pistillate, tip 3-lobed, yellowish, conspicuous veins, reflexed at maturity; tubular florets many, yellow | ||||||||
| Fruits: | achenes 1.4 mm long; pappus scales 5, < 1 mm long, lanceolate, awn-tipped, appressed hairy | ||||||||
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