Difference between revisions of "Arnica cordifolia"
Fl. Bor.-Amer. 1: 331. 1834.
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|name=Arnica cordifolia var. pumila | |name=Arnica cordifolia var. pumila | ||
|authority=(Rydberg) Maguire | |authority=(Rydberg) Maguire | ||
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|name=Arnica paniculata | |name=Arnica paniculata | ||
|authority=Fernald | |authority=Fernald | ||
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|name=Arnica whitneyi | |name=Arnica whitneyi | ||
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|publication year=1834 | |publication year=1834 | ||
|special status= | |special status= | ||
| − | |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/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V21_938.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | ||
Revision as of 15:38, 18 September 2019
Plants 10–40(–70) cm. Stems usually simple, sometimes branched. Leaves 2–4(–6) pairs, mostly cauline (basal often persistent on sterile rosettes); petiolate; blades cordate or subcordate to ovate, 3–10 × 2–10 cm, margins dentate to coarsely dentate, apices acute to rounded, faces puberulent to sparsely villous, sometimes stipitate-glandular (especially adaxial). Heads 1, or 3–5(–10). Involucres broadly campanulate. Phyllaries 10–20, narrowly ovate to lanceolate. Ray florets 6–13; corollas yellow. Disc florets: corollas yellow; anthers yellow. Cypselae dark gray, 5–10 mm, sparsely to densely hirsute (hairs duplex), sometimes stipitate-glandular as well; pappi white, bristles barbellate. 2n = 38, 57, 76, 95, 114.
Phenology: Flowering May–Jul.
Habitat: Conifer forests to subalpine meadows
Elevation: 500–3000 m
Distribution
Alta., B.C., Man., N.W.T., Ont., Sask., Yukon, Ariz., Calif., Colo., Idaho, Mich., Mont., Nev., N.Mex., Oreg., S.Dak., Utah, Wash., Wyo.
Discussion
Selected References
None.