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Erigeron coulteri
Parter & Coulter
No occurrences found
Family:
Asteraceae
large mountain fleabane
Images
not available
FNA
Resources
Guy L. Nesom in Flora of North America (vol. 20)
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.
2
n
= 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.
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