Erigeron speciosus(synonym of Erigeron subtrinervis) |
Erigeron glaucus |
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showy daisy, showy fleabane |
seaside daisy, seaside fleabane |
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Habit | Plants perennial, 15–75 cm; rhizomatous, fibrous-rooted, caudices branching. | Plants perennial, 3–30 cm; fibrous-rooted, rhizomatous, caudices usually simple, occasionally branching. |
Stems | erect; surfaces glabrous to rarely remotely hirsute, sometimes minutely glandular distally. |
decumbent, procumbent or ascending, sparsely to moderately hirsute, usually minutely glandular. |
Basal leaves | usually withering by flowering, oblanceolate to spatulate. |
persistent, obovate to broadly spatulate, 15–40 × 5–25 mm; margins entire; surfaces usually glabrous and eglandular. |
Cauline leaves | lanceolate, 20–80 × 5–15 mm, gradually reduced distally, bases ± clasping; margins entire, usually long-ciliate; surfaces glabrous, rarely remotely strigose. |
similar to basal, 7–30 × 3–15 mm, gradually reduced distally. |
Involucres | 3–7 × 11–16 mm. |
5–10 × 10–21 mm. |
Ray florets | 40–115+, lavender to purple; rays 7–11 × 0.7–1.5 mm. |
70–100, lavender to purple; rays 6–9 × 1–2 mm. |
Disc florets | 2–3 mm. |
corollas 4–6 mm. |
Phyllaries | in 2–3+ series, usually with orange stripe; surfaces basally hirsute to villous, occasionally minutely glandular. |
in 3–4 series; surfaces moderately to densely villous, sparsely to moderately glandular. |
Fruits | 2–3 mm, glabrous to sparsely strigose; inner pappi of numerous barbellate bristles. |
2–3 mm, sparsely to moderately strigose; inner pappi of numerous barbellate bristles. |
Heads | 1–5+ in corymb-like arrays, radiate. |
1(3), radiate. |
2n | =18. |
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Erigeron speciosus |
Erigeron glaucus |
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Distribution | ||
Discussion | Conifer forests, moist slopes, riverbanks, wet meadows. Flowering Jun–Sep. 50–2500 m. BR, BW, CR, WV. ID, NV, WA; north to British Columbia, northeast to Alberta, east to NE, southeast to NM. Native. |
Coastal dunes, bluffs. Flowering May–Aug. 0–500 m. Est. CA. Native. |
Source | Flora of Oregon, volume 2 draft James Riser, Stephen Meyers |
Flora of Oregon, volume 2, page 257 James Riser, Stephen Meyers |
Sibling taxa | ||
Synonyms | Erigeron speciosus var. macranthus, Erigeron speciosus var. speciosus, Erigeron subtrinervis | |
Web links |