Eucephalus breweri |
Eucephalus vialis |
|
---|---|---|
Brewer's aster |
wayside aster |
|
Habit | Plants 2–7 dm. | Plants 5–12(13) dm. |
Stems | ascending to erect, glabrous to sparsely pubescent or glandular. |
erect, pilose to glandular-pubescent. |
Leaves | linear-lanceolate to ovate, 2–6 cm × 5–12 mm; surfaces glabrate to ± glandular-pubescent or woolly-pubescent. |
lanceolate to elliptic, 4–10 cm × 15–30 mm; surfaces abaxially glandular-pubescent, adaxially glabrous. |
Inflorescences | corymb- to panicle- or raceme-like arrays. |
panicle- to raceme-like arrays. |
Involucres | turbinate-cylindric, 5–10 mm. |
turbinate, 7–10 mm. |
Ray florets | 0. |
0. |
Phyllaries | in 3–4 series, linear-lanceolate to lanceolate-oblong, subequal; tips acuminate; surfaces glabrate to ± glandular or woolly-pubescent; outer ? ? as long as involucres. |
in 3–6 series, strongly imbricate, linear to linear-oblong, subequal; tips acute to acuminate; surfaces glabrate to glandular-pubescent; outer nearly as long as inner; < ? as long as involucres. |
Fruits | ± strigose; pappus bristles in 2 series, barbellate. |
pilose; pappus bristles in 2 series; smooth to ± barbellate. |
Heads | 3–15, discoid. |
5–50(120), discoid. |
2n | =18. |
=18. |
Eucephalus breweri |
Eucephalus vialis |
|
Distribution | ||
Discussion | Open coniferous woods, meadows. Flowering Jul–Sep. 1200–1800 m. Sisk. CA, NV. Native. |
Dry open woodland. Flowering Jun–Sep. 100–1700 m. Casc, Sisk, WV. CA. Native. This species hybridizes with E. glabratus in the southern part of its range. |
Source | Flora of Oregon, volume 2, page 265 Geraldine Allen |
Flora of Oregon, volume 2, page 267 Geraldine Allen |
Sibling taxa | ||
Synonyms | Aster breweri, Chrysopsis breweri | Aster vialis |
Web links |