Erigeron filifolius |
Erigeron compositus |
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Peck's threadleaf fleabane |
cutleaf daisy, dwarf mountain fleabane, fernleaf fleabane, trifid mountain fleabane |
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Habit | Perennial from a taproot and branched, short woody base, 1-5 dm. tall, the stem densely covered with fine, appressed hairs aligned in one direction. | Perennial from a tap-root, 3-25 cm. tall, the herbage densely glandular. |
Leaves | Leaves both basal and cauline, linear or linear-filiform, 1-8 cm. long and 0.3-3 mm. wide, of uniform width. |
Basal leaves trifid to ternately dissected; cauline leaves few, linear and entire. |
Flowers | Heads solitary or several; involucre 4-6 mm. high, with fine, soft hairs or small glands or both; rays 15-125, blue, pink or white, 3-13 mm. long and 1-2 mm. wide; pappus of 20-30 simple hairs. |
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 filifolius |
Erigeron compositus |
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Flowering time | May-July | May - August |
Habitat | Sagebrush plains, dry slopes, and grasslands. | Sandy riverbanks at low elevations to rocky outcrops at mid- to high elevation in the mountains |
Distribution | Occurring east of the Cascades crest and in the Columbia River Gorge in Washington; British Columbia to California, east to Montana, Idaho, and Utah.
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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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