Erigeron elegantulus |
Erigeron klamathensis |
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dwarf blue fleabane, volcanic fleabane |
Klamath fleabane |
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Habit | Plants perennial, 4–10 cm; taprooted, with branching caudices. | Plants perennial, 5–25 cm; taprooted, caudices branching. |
Stems | erect to basally ascending, sparsely to moderately strigose, eglandular. |
erect to decumbent-ascending; hirsute, eglandular; hairs usually spreading and slightly reflexed. |
Basal leaves | persistent, linear to filiform, 20–50 × 0.5–1 mm, white, bases sheathing; margins entire; tips round to acute or acuminate; surfaces sparsely to moderately strigose. |
withering by flowering. |
Cauline leaves | abruptly reduced and usually restricted to basal ? of stem, bases sheathing. |
oblong to narrowly oblanceolate, 10–30 × 1–4 mm, slightly reduced distally or not; margins entire; surfaces moderately to densely hirsute, eglandular. |
Involucres | 3–5 × 8–11 mm. |
4–6 × 8–14 mm. |
Ray florets | 15–30, lavender to purple; rays 3–8 × 0.7–1.3 mm. |
20–40, lavender to purple; rays 4–6 × 0.7–2 mm. |
Disc florets | corollas 2.5–3.5 mm. |
corollas 3.5–5 mm. |
Phyllaries | in 3–4 unequal series; surfaces sparsely strigose, eglandular. |
in 2–3 unequal series; surfaces glabrous to very sparsely hirsute, densely minutely glandular. |
Fruits | 1–2 mm, nearly glabrous to sparsely strigose; inner pappi of numerous barbellate bristles. |
2–3 mm, sparsely to densely strigose; inner pappi of numerous barbellate bristles. |
Heads | 1, radiate. |
1–4 in loose corymb-like arrays, radiate. |
2n | =27. |
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Erigeron elegantulus |
Erigeron klamathensis |
|
Distribution | ||
Discussion | Rocky areas, sagebrush, coniferous forests. Flowering Jun–Aug. 700–2500 m. BR, BW, Casc, Owy. CA. Native. |
Rocky areas, ridges, crevices. Flowering Jun–Sep. 500–1500 m. Sisk. CA. Native. |
Source | Flora of Oregon, volume 2, page 256 James Riser, Stephen Meyers |
Flora of Oregon, volume 2, page 258 James Riser, Stephen Meyers |
Sibling taxa | ||
Synonyms | Erigeron breweri, Erigeron breweri var. klamathensis | |
Web links |
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