Erigeron rydbergii |
Erigeron lonchophyllus |
|
---|---|---|
short-rayed fleabane, spear-leaved fleabane |
||
Habit | Plants biennial or short-lived perennial, 4–33 cm; usually fibrous-rooted, caudices simple. | |
Stems | erect, sparsely to densely hirsute, eglandular or occasionally with densely minute glands. |
|
Basal leaves | persistent, oblanceolate to spatulate, 10–100 × 4–10 mm; margins entire, often with spreading cilia; surfaces glabrous to moderately hirsute or strigose. |
|
Cauline leaves | narrowly elliptic, oblong, oblanceolate to linear, 10–100 × 1–5 mm, reduced distally, bases often clasping; surfaces glabrous to moderately hirsute or strigose. |
|
Involucres | 4–7 × 5–11 mm. |
|
Ray florets | 40–100, white to pink; rays 2–5 × 0.2–0.4 mm. |
|
Disc florets | corollas 3–5 mm. |
|
Phyllaries | in 2–3 series; surfaces sparsely to densely hirsute, glandular or eglandular. |
|
Fruits | 1.5–2.5 mm, sparsely to moderately strigose; inner pappi of numerous barbellate bristles. |
|
Heads | 1–10 in raceme-like arrays, radiate. |
|
2n | =18. |
|
Erigeron rydbergii |
Erigeron lonchophyllus |
|
Distribution | ||
Discussion | Floodplains, lakesides, gravel bars, roadsides, marshes, seeps. Flowering Jun–Aug. 800–2300 m. BR, BW, Casc, ECas, Lava, Owy. CA, ID, NV, WA; north to AK, northeast to Nunavut, east to Quebec, southeast to NM. Native. |
|
Source | Flora of Oregon, volume 2, page 258 James Riser, Stephen Meyers |
|
Sibling taxa | ||
Synonyms | Trimorpha lonchophylla | |
Web links |
|