Difference between revisions of "Arnica mollis"
Fl. Bor.-Amer. 1: 331. 1834.
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|publication year=1834 | |publication year=1834 | ||
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| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V21_931.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | ||
Revision as of 19:40, 16 December 2019
Plants 15–70 cm. Stems (forming clumps) simple or branched among heads. Leaves (2–)3(–4) pairs, mostly cauline (basal sometimes present); petiolate (petioles relatively short, broad-winged) or subsessile; blades broadly elliptic, lance-elliptic, or narrowly to broadly lanceolate, 4–20 × 1–4 cm, margins entire or irregularly denticulate, apices acute, faces sparsely to moderately hairy (hairs relatively short to long, stipitate glands or soft, silky). Heads 1 or 3–7. Involucres hemispheric to campanulate. Phyllaries 10–22, usually broadly lanceolate, rarely narrowly lanceolate or oblanceolate. Ray florets 10–22; corollas yellow. Disc florets: corollas yellow; anthers yellow. Cypselae grayish brown to black, 4–8 mm, mostly stipitate-glandular, sparsely hirsutulous (hairs white to brownish, simple or bifid); pappi tawny, bristles plumose (with deep, amberlike deposits). 2n = 38, 57, 76, 95, 114, 133, 152.
Phenology: Flowering Jun–Sep.
Habitat: Moist meadows and conifer forests, stream banks, late snow-melt areas, montane to subalpine
Elevation: 1000–4000 m
Distribution
Alta., B.C., N.W.T., Yukon, Alaska, Calif., Colo., Idaho, Mont., Nev., Oreg., Utah, Wash., Wyo.
Discussion
Selected References
None.