Difference between revisions of "Erigeron pinnatisectus"
Bull. Torrey Bot. Club 26: 246. 1899.
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|tribe=Asteraceae tribe Astereae | |tribe=Asteraceae tribe Astereae | ||
|genus=Erigeron | |genus=Erigeron | ||
Revision as of 20:29, 16 December 2019
Perennials, 4–11 cm; taprooted, caudex branches usually relatively thick, woody. Stems erect, sparsely to moderately hispidulous and minutely glandular, sometimes merely glandular. Leaves mostly basal and proximal (persistent); basal blades spatulate to obovate (often folding), 20–40(–50) × 5–10 mm, margins pinnatifid (lobes linear), faces usually glabrate, sometimes sparsely hirsute, usually minutely glandular; cauline blades mostly linear, abruptly reduced distally or nearly absent, margins entire, usually coarsely ciliate. Heads 1. Involucres 5.5–8 × 9–13 mm. Phyllaries in 3–5 series, sparsely hispidulous to hirsuto-villous, minutely glandular. Ray florets 40–70; corollas usually light blue, sometimes slightly purplish, drying bluish or fading lighter, 7–12 mm, laminae reflexing. Disc corollas 3.8–4.5 mm. Cypselae 1.5–1.8 mm, 2-nerved, faces sparsely strigose; pappi: outer of setae, inner (persistent) of 25–30 bristles, with outer setae.
Phenology: Flowering late Jun–Aug.
Habitat: Bluffs and ledges, moraines, subalpine and alpine meadows
Elevation: 2700–3700(–4000) m
Distribution
Colo., N.Mex., Wyo.
Discussion
Selected References
None.