Erigeron elegantulus |
Erigeron vagus |
|
---|---|---|
dwarf blue fleabane, volcanic fleabane |
rambling fleabane |
|
Habit | Plants perennial, 4–10 cm; taprooted, with branching caudices. | Plants perennial, 3–10 cm; taprooted, caudices branching. |
Stems | erect to basally ascending, sparsely to moderately strigose, eglandular. |
erect, nearly glabrous to remotely hirsute, minutely glandular. |
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. |
persistent, spatulate with 3–5 distal lobes, 6–25 × 3–10 mm; margins entire; surfaces moderately to densely hirsute. |
Cauline leaves | abruptly reduced and usually restricted to basal ? of stem, bases sheathing. |
absent or reduced to linear bracts. |
Involucres | 3–5 × 8–11 mm. |
5–7 × 10–13 mm. |
Ray florets | 15–30, lavender to purple; rays 3–8 × 0.7–1.3 mm. |
25–40, white to lavender to purple; rays 6–9 × 0.5–1.5 mm. |
Disc florets | corollas 2.5–3.5 mm. |
2–3 mm. |
Phyllaries | in 3–4 unequal series; surfaces sparsely strigose, eglandular. |
in 2 series; purplish to green, with yellow-orange medial stripe; surfaces remotely hirsute to basally villous. |
Fruits | 1–2 mm, nearly glabrous to sparsely strigose; inner pappi of numerous barbellate bristles. |
2–3 mm, sparsely strigose; inner pappi of numerous barbellate bristles. |
Heads | 1, radiate. |
1, radiate. |
2n | =27. |
=18. |
Erigeron elegantulus |
Erigeron vagus |
|
Distribution | ||
Discussion | Rocky areas, sagebrush, coniferous forests. Flowering Jun–Aug. 700–2500 m. BR, BW, Casc, Owy. CA. Native. |
Rocky areas, slopes. Flowering Jun–Aug. 1500–3100 m. BW. CA, NV; southeast to CO. Native. |
Source | Flora of Oregon, volume 2, page 256 James Riser, Stephen Meyers |
Flora of Oregon, volume 2, page 262 James Riser, Stephen Meyers |
Sibling taxa | ||
Web links |