Erigeron divergens |
Erigeron klamathensis |
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diffuse daisy, spreading fleabane |
Klamath fleabane |
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Habit | Plants annual or short-lived perennial, 12–50+ cm; taprooted, with short, branching caudices. | Plants perennial, 5–25 cm; taprooted, caudices branching. |
Stems | erect, ascending to decumbent, densely pilose to sparsely hirsute, minutely glandular at least distally. |
erect to decumbent-ascending; hirsute, eglandular; hairs usually spreading and slightly reflexed. |
Basal leaves | persistent or withering by flowering, spatulate, 20–80 × 5–10 mm; margins entire or with 1–2 coarse teeth; surfaces moderately to densely strigose, usually eglandular. |
withering by flowering. |
Cauline leaves | numerous and well developed, elliptic, obovate, or linear, 5–30 × 1–4 mm, usually slightly reduced distally; surfaces densely strigose to villous. |
oblong to narrowly oblanceolate, 10–30 × 1–4 mm, slightly reduced distally or not; margins entire; surfaces moderately to densely hirsute, eglandular. |
Involucres | 2–4 × 6–10 mm. |
4–6 × 8–14 mm. |
Ray florets | 75–150, light purple to lavender; rays 2–5 × 0.25–0.6 mm. |
20–40, lavender to purple; rays 4–6 × 0.7–2 mm. |
Disc florets | corollas 2–3 mm. |
corollas 3.5–5 mm. |
Phyllaries | in 2–3 series, usually with dark green or brown medial area and lighter colored stripe; surfaces moderately to densely hirsute or strigose, moderately to densely glandular. |
in 2–3 unequal series; surfaces glabrous to very sparsely hirsute, densely minutely glandular. |
Fruits | 0.75–1 mm, glabrous to very sparsely strigose; inner pappi of numerous barbellate bristles. |
2–3 mm, sparsely to densely strigose; inner pappi of numerous barbellate bristles. |
Heads | 1–20+ in corymb-like arrays, radiate. |
1–4 in loose corymb-like arrays, radiate. |
2n | =18, 27, 36. |
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Erigeron divergens |
Erigeron klamathensis |
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Distribution | ||
Discussion | Dry open areas, roadsides, streambanks. Flowering May–Sep. 50–2200 m. BR, BW, Casc, Col, ECas, Est, Lava. CA, ID, WA; north to British Columbia, northeast to Alberta, east to SD, southeast to TX, south to Mexico. Native. |
Rocky areas, ridges, crevices. Flowering Jun–Sep. 500–1500 m. Sisk. CA. Native. |
Source | Flora of Oregon, volume 2, page 255 James Riser, Stephen Meyers |
Flora of Oregon, volume 2, page 258 James Riser, Stephen Meyers |
Sibling taxa | ||
Synonyms | Erigeron divergens var. divergens | Erigeron breweri, Erigeron breweri var. klamathensis |
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