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.

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

"thick" is not a number.

... more about "Erigeron glacialis"
not tailed +, rounded +  and obtuse +
distinct +
subequal +
scarious +
usually triangular +  and linear +
usually deltate +  and lanceolate +
paniculiform +, corymbiform +  and loose +
indeterminate +  and determinate +
Guy L. Nesom +
(Nuttall) A. Nelson +
16 cm160 mm <br />0.16 m <br /> (20 cm200 mm <br />0.2 m <br />) +
3 cm30 mm <br />0.03 m <br /> (16 cm160 mm <br />0.16 m <br />) +
linear-oblanceolate +  and broadly lanceolate or spatulate +
0.7 cm7 mm <br />0.007 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
decurrent +
Aster glacialis +
linear;lanceolate oblanceolate or spatulate +
rugulose +  and muricate +
Subalpine fleabane +
not 2-lipped +  and actinomorphic +
1.6 cm16 mm <br />0.016 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
white +  and pale blue +
0.8 cm8 mm <br />0.008 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
(4-)5(-7)-nerved +
beaked +, 2-ribbed +  and 5-ribbed +
subterete +, oblong +  and oblong-obovoid compressed +
fertile +  and bisexual +
0.38 cm3.8 mm <br />0.0038 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
fertile +  and bisexual +
Alta. +, B.C. +, Yukon +, Alaska +, Calif. +, Colo. +, Idaho +, Mont. +, N.Mex. +, Nev. +, Oreg. +, Utah +, Wash. +  and Wyo. +
strigose +, glabrate hirsute or villous +  and sparsely villosulous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
disciform +  and discoid +
in loose , corymbiform or paniculiform arrays +  and singly +
indeterminate +
heterogamous +  and homogamous +
each +  and sessile +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
2.2 cm22 mm <br />0.022 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
turbinate;hemispheric +
1 cm10 mm <br />0.01 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
petiolate +  and sessile +
cauline +  and basal +
erect;spreading +
deltate +
Not (?) +  and Scarious (?) +
2-carpellate +
3-nerved +  and 1-nerved +
stipitate-glandular +  and villous +
narrowly elliptic +  and linear-lanceolate +
bearing subulate enations +, hairy +  and bristly +
exalbuminous +
Illustrated +  and Endemic +
prostrate +  and decumbent +
erect +  and ascending +
appendaged +  and truncate +
papillate +  and smooth +
Erigeron salsuginosus var. glacialis +
Erigeron glacialis +
Erigeron +
species +
inflated +  and tubular +
fibrous-rooted +  and rhizomatous +
55 cm550 mm <br />0.55 m <br /> (70 cm700 mm <br />0.7 m <br />) +
5 cm50 mm <br />0.05 m <br /> (55 cm550 mm <br />0.55 m <br />) +
tree +, shrub +  and subshrub +