Erigeron subtrinervis |
Erigeron compositus |
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three-veined fleabane |
cutleaf daisy, dwarf mountain fleabane, fernleaf fleabane, trifid mountain 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 from a tap-root, 3-25 cm. tall, the herbage densely glandular. |
Leaves | Leaves triple-nerved, entire, the lower oblanceolate or spatulate, petiolate, mostly deciduous, the other becoming sessile but ample. |
Basal leaves trifid to ternately dissected; cauline leaves few, linear and entire. |
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 solitary on long, nearly leafless stems, glandular and hairy; pistillate flowers 20-60, with usually white but occasionally pink or blue rays up to 12 mm. long and 2 mm. wide, or wanting; disk flowers yellow; pappus of 12-20 capillary bristles. |
Erigeron subtrinervis |
Erigeron compositus |
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Flowering time | July-September | May - August |
Habitat | Moderately dry, open places at low to middle elevations. | Sandy riverbanks at low elevations to rocky outcrops at mid- to high elevation 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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Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east to the northern Great Plains, also in northern and eastern Canada.
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Origin | Native | Native |
Conservation status | Not of concern | Not of concern |
Sibling taxa | ||
Web links |
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