Erigeron poliospermus |
Erigeron basalticus |
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hairy-seeded daisy, cushion fleabane |
basalt fleabane |
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Habit | Taprooted perennial with short-branched, woody base; stems to 15 cm. high; plants more or less spreading-hairy and glandular throughout. | Several stems from a perennial taproot, sprawling, branched and leafy, especially near the tip. |
Leaves | Basal leaves linear-oblanceolate to spatulate, up to 8 cm. long and 12 mm. wide, the cauline leaves reduced. |
Leaves with stiff, blunt hairs and fine glands, wedge-shaped to obovate, up to 4 cm. long and 1.5 cm. wide, deeply tri-lobed, the lobes broad. |
Flowers | Heads solitary, hemispheric, the disk 9-20 mm. wide; involucre 5-9 mm. high; rays 15-45, pale pink or purple to deep violet, 4-15 mm. long and 1.3-3.6 mm. wide; pappus of 20-30 capillary bristles. |
Heads terminating the branches, the disk 8-12 mm. wide; involucre 5-6 mm. high, densely glandular; rays 25-30, light pink or pinkish-purple, 5-7 mm. long and 1.5 mm. wide; disk corollas 3-4 mm. long, pale yellow; pappus of 10-15 capillary bristles. |
Fruits | Achenes densely covered with long, silky hairs. |
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Erigeron poliospermus |
Erigeron basalticus |
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Flowering time | April-June | May-July |
Habitat | Dry, open, typically rocky areas, often with sagebrush. | Cliff crevices in rocky canyons. |
Distribution | Occurring east of the Cascades crest in Washington; British Columbia to Oregon, east to western Idaho.
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Occurring east of the Cascades crest where endemic to Kittitas and Yakima counties in Washington.
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Origin | Native | Native |
Conservation status | Not of concern | Threatened in Washington (WANHP) |
Sibling taxa | ||
Subordinate taxa | ||
Web links |
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