Difference between revisions of "Erigeron glacialis"

(Nuttall) A. Nelson

Bot. Gaz. 37: 270. 1904.

Common names: Subalpine fleabane
IllustratedEndemic
Basionym: Aster glacialis Nuttall Trans. Amer. Philos. Soc., n. s. 7: 291. 1840
Synonyms: Erigeron salsuginosus var. glacialis (Nuttall) A. Gray
Treatment appears in FNA Volume 20. Treatment on page 329. Mentioned on page 21, 259, 268.
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Latest revision as of 18:24, 6 November 2020

Perennials, 5–55(–70) cm; rhizomatous, fibrous-rooted, caudices usually simple, thick. Stems erect to ascending, hirsute or hirsuto-villous to densely strigillose (hairs loosely appressed, slightly crinkled), eglandular. Leaves basal (usually persistent) and cauline; basal blades linear-oblanceolate to broadly lanceolate or spatulate, (20–)30–160(–200) × 7–45 mm, cauline gradually reduced distally (bases distinctly subclasping, except when greatly reduced), margins entire, faces glabrous or glabrate, hirsute, or villous to sparsely villosulous, eglandular. Heads 1(–8). Involucres 6–9(–12) × 10–22(–25) mm. Phyllaries in 2–3(–4) series (faces and margins) usually glabrous, rarely sparsely villous (cross walls not colored), densely and evenly stipitate-glandular. Ray florets 30–80; corollas usually blue to rose purple or pink, sometimes white to pale blue, 8–16(–25) mm (mostly 1.5–3 mm wide), laminae coiling. Disc corollas 3.8–6 mm. Cypselae 2.5–2.8 mm, (4–)5(–7)-nerved, faces sparsely strigose; pappi: outer of setae, inner of 20–30 bristles.

Distribution

V20-745-distribution-map.gif

Alta., B.C., Yukon, Alaska, Calif., Colo., Idaho, Mont., N.Mex., Nev., Oreg., Utah, Wash., Wyo.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Peduncles densely strigillose with loosely appressed, slightly crinkled hairs; leaf faces glabrous or villous Erigeron glacialis var. glacialis
1 Peduncles hirsute to hirsuto-villous; leaf faces hirsute to hirsuto-villous Erigeron glacialis var. hirsutus
... more about "Erigeron glacialis"
Guy L. Nesom +
(Nuttall) A. Nelson +
Aster glacialis +
Subalpine fleabane +
Alta. +, B.C. +, Yukon +, Alaska +, Calif. +, Colo. +, Idaho +, Mont. +, N.Mex. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
Illustrated +  and Endemic +
Erigeron salsuginosus var. glacialis +
Erigeron glacialis +
Erigeron +
species +