Erigeron coulteri Porter
Source: USDA Plants_111306
Family: Asteraceae
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Keir Morse  
Perennials, 10-70 cm; rhizomatous, fibrous-rooted, sometimes with branched caudices and scale-leaved stolons. Stems erect, sparsely hispido-villous (hair cross walls sometimes black), often glabrate, eglandular. Leaves basal (persistent or not) and cauline; proximal blades broadly oblanceolate to elliptic or oblong-lanceolate, 40-120(-150) × 7-25 mm, margins entire or with 1-5 pairs of shallow teeth, faces sparsely strigose to strigoso-villous, eglandular; cauline blades becoming elliptic-ovate to lanceolate, gradually reduced distally (bases usually claspi ng). Heads 1(-4). Involucres 7-10 × 10-16 mm. Phyllaries in 2(-3) series, hirsuto-villous (hair cross walls black), minutely glandular. Ray florets 45-140; corollas 9-25 mm, laminae coiling, white. Disc corollas 3-4.4 mm. Cypselae (1.3-)1.5-1.8 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner of 20-25 bristles. 2n = 18. Flowering (Jun-)Jul-Sep. Moist coniferous woods, moist to wet meadows, open areas along creeks, aspen, spruce-fir; 1800-3700 m; Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wyo.
Erigeron coulteri image
Keir Morse  
Erigeron coulteri image
Gary A. Monroe  
Erigeron coulteri image
Barry Breckling  
Erigeron coulteri image
Keir Morse  
Erigeron coulteri image
Gary A. Monroe  
Erigeron coulteri image
Barry Breckling  
Erigeron coulteri image
Keir Morse  
Erigeron coulteri image
Gary A. Monroe  
Erigeron coulteri image
Barry Breckling  
Erigeron coulteri image
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