All Floras      Advanced Search
FNA Vol. 20 Page 266,335, 336 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 20 | Asteraceae | Erigeron

149. Erigeron ursinus D. C. Eaton in S. Watson, Botany (Fortieth Parallel). 148. 1871.

Bear River fleabane

Erigeron ursinus var. meyerae S. L. Welsh

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. 2n = 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.


Related Objects Image Gallery 
  • Distribution Map
  • Map
  • Illustration
  • Illustration

     |  eFlora Home |  People Search  |  Help  |  ActKey  |  Hu Cards  |  Glossary  |