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Erigeron ursinus
Erigeron ursinus
D.C. Eat.
Family:
Asteraceae
Bear River fleabane,
more...
bear daisy
Flora of North America
Resources
Guy L. Nesom in Flora of North America (vol. 20)
Perennials,
(1.5-)5-25(-30) cm; rhizomatous, fibrous-rooted, forming diffuse systems of slender, rhizomelike caudex branches.
Stems
ascending (bases usually purplish), glabrous or sparsely strigose (or hairs loosely spreading), sometimes glandular near heads.
Leaves
basal (persistent) and cauline; basal (purplish) and proximal blades narrowly oblanceolate to oblong, 20-120 × 2-11 mm, cauline reduced distally, margins entire, ciliate, faces glabrous or loosely strigose, eglandular.
Heads
1(-3).
Involucres
5-7 × 9-19 mm.
Phyllaries
in 2-3(-4) series (margins and tips often purplish, loose, linear-lanceolate, apices spreading), sparsely to moderately villous to hirsuto-villous, densely minutely glandular.
Ray florets
30-100; corollas pink to bluish purple, 6-15 mm, laminae not reflexing or coiling, sometimes tardily coiling.
Disc corollas
3.2-4.7 mm.
Cypselae
1.5-2 mm, 2-nerved, faces sparsely strigose;
pappi:
outer of setae, inner of 10-20 bristles.
2
n
= 18. Flowering Jul-Sep. Meadows and grassy openings, sagebrush, aspen, lodgepole pine, pine-fir, spruce-fir; 2400-3100(-3700) m; Ariz., Colo., Idaho, Mont., Nev., N.Mex., Utah, Wyo.
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