Erigeron subtrinervis |
Erigeron aliceae |
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three-veined fleabane |
Alice's fleabane, Eastwood's fleabane |
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Habit | Perennial from a short, woody base, 1.5-8 dm. tall, the stems clustered, amply leafy, spreading-hairy throughout. | Perennial usually from a rhizome, 3-8 dm. tall, amply leafy, covered with stiff, short, blunt hairs. |
Leaves | Leaves triple-nerved, entire, the lower oblanceolate or spatulate, petiolate, mostly deciduous, the other becoming sessile but ample. |
Leaves entire or coarsely toothed, the lower ones up to 20 cm. long including the petiole, and 3.5 cm. wide, the middle and upper leaves sessile, narrowly lanceolate to oblong. |
Flowers | Heads 1-13 in a open inflorescence; involucre 6-9 mm. high; rays 65-150, blue or rarely white or pink, 9-18 mm. long and 1 mm. wide; pappus 20-30 bristles, a few of the outer ones shorter. |
Heads 1-several, the disk 12-20 mm. wide; involucral bracts loose, pointed, sub-equal, with conspicuous stiff, white hairs on the lower half, and glands on the upper portion; rays 45-80, pistillate, 10-15 mm. long and 2-3 mm. wide, white to pink-purple; disk corollas 3-4 mm. long, yellow; pappus simple. |
Fruits | Achenes usually 2-nerved. |
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Erigeron subtrinervis |
Erigeron aliceae |
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Flowering time | July-September | June-August |
Habitat | Moderately dry, open places at low to middle elevations. | Moist to fairly dry, sandy, open areas at middle elevations in the mountains. |
Distribution | Occurring on both sides of the Cascades crest in Washington; British Columbia to Washington, east to the Rocky Mountains.
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Occurring west of the Cascades crest in the Olympic Mountains and southward in Washington; Washington to California.
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Origin | Native | Native |
Conservation status | Not of concern | Sensitive in Washington (WANHP) |
Sibling taxa | ||
Web links |