Erigeron lanatus |
Erigeron coulteri |
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Coulter's fleabane |
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Habit | Plants perennial, 15–55 cm; roots fibrous, rhizomatous, occasionally with branching caudices. | |
Stems | erect, sparsely villous, eglandular. |
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Basal leaves | occasionally withering by flowering, broadly oblanceolate-elliptic, 40–150 × 10–25 mm; margins entire or occasionally with poorly developed teeth; surfaces sparsely strigose or hirsute, eglandular. |
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Cauline leaves | lanceolate to elliptic, 10–80 × 2.5–25(30) mm, gradually reduced distally, bases clasping; margins entire or with minute teeth. |
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Involucres | 5–8 × 11–17 mm. |
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Ray florets | 60–110, white; rays 8–15 × 0.5–1 mm. |
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Disc florets | corollas 3–5 mm. |
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Phyllaries | in 2–3 series; surfaces moderately to densely hirsute or villous, eglandular to minutely glandular. |
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Fruits | 1.5–2 mm, sparsely strigose; inner pappi of numerous barbellate bristles. |
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Heads | 1(3), radiate. |
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2n | =18. |
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Erigeron lanatus |
Erigeron coulteri |
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Distribution | ||
Discussion | Moist coniferous forests, wet meadows. Flowering Jun–Aug. 1100–2000 m. BW. CA, ID, NV; northeast to MT, east to WY, southeast to NM. Native. |
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Source | Flora of Oregon, volume 2, page 255 James Riser, Stephen Meyers |
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Sibling taxa | ||
Web links |