Erigeron elegantulus |
Erigeron rybius |
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dwarf blue fleabane, volcanic fleabane |
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Habit | Plants perennial, 4–10 cm; taprooted, with branching caudices. | |
Stems | erect to basally ascending, sparsely to moderately strigose, eglandular. |
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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. |
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Cauline leaves | abruptly reduced and usually restricted to basal ? of stem, bases sheathing. |
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Involucres | 3–5 × 8–11 mm. |
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Ray florets | 15–30, lavender to purple; rays 3–8 × 0.7–1.3 mm. |
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Disc florets | corollas 2.5–3.5 mm. |
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Phyllaries | in 3–4 unequal series; surfaces sparsely strigose, eglandular. |
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Fruits | 1–2 mm, nearly glabrous to sparsely strigose; inner pappi of numerous barbellate bristles. |
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Heads | 1, radiate. |
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2n | =27. |
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Erigeron elegantulus |
Erigeron rybius |
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Distribution | ||
Discussion | Rocky areas, sagebrush, coniferous forests. Flowering Jun–Aug. 700–2500 m. BR, BW, Casc, Owy. CA. Native. |
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Source | Flora of Oregon, volume 2, page 256 James Riser, Stephen Meyers |
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Sibling taxa | ||
Web links |