Erigeron filifolius |
Erigeron linearis |
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Peck's threadleaf fleabane |
desert yellow daisy, lineleaf 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 stout woody base, 5-30 cm. tall, covered throughout with fine, grey, appressed hairs aligned in one direction. |
Leaves | Leaves both basal and cauline, linear or linear-filiform, 1-8 cm. long and 0.3-3 mm. wide, of uniform width. |
Bases of stems and basal leaves hardened and enlarged, straw-colored; leaves linear, 1.5-9 cm. long and 0.5-3 mm. wide, mostly basal. |
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 or few on each stem, the disk 8-13 mm. wide; involucre 4-7 mm. high; rays 15-45, yellow, 4-11 mm. long; disk corollas 3.5-5.3 mm. long, yellow; pappus of 10-20 bristles and some outer scales. |
Erigeron filifolius |
Erigeron linearis |
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Flowering time | May-July | May-July |
Habitat | Sagebrush plains, dry slopes, and grasslands. | Dry, open, often rocky areas at low to middle elevations. |
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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Occurring east of the Cascades crest in Washington; southern British Columbia to California, east to Montana, Wyoming, and Utah.
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Origin | Native | Native |
Conservation status | Not of concern | Not of concern |
Sibling taxa | ||
Web links |
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