Helenium autumnale |
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common sneezeweed, large flowered sneezeweed |
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Habit | Fibrous-rooted perennial, 1.5-12 dm. tall, nearly glabrous. |
Leaves | Leaves numerous, lanceolate, narrowed to a sessile base from which wings are formed along the stem, only slightly reduced upward, 4-15 cm. long and 5-40 mm. wide, usually shallowly toothed, the lowest early-deciduous. |
Flowers | Heads usually numerous, sub-globose, the disk yellow, 1-2 cm. wide; involucral bracts narrow, herbaceous, soon deflexed; rays 10-20, pistillate, wedge-shaped, 3-lobed, yellow, soon deflexed; pappus of several series of papery scales, lanceolate or ovate, long-pointed, 2 mm. long. |
Fruits | Achenes truncately obpyramidal, 4-5 angled and ribbed. |
Helenium autumnale |
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Flowering time | July-September |
Habitat | Stream banks and other moist, low ground generally at low elevations. |
Distribution | Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
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Origin | Native |
Conservation status | Not of concern |
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