Difference between revisions of "Arnica chamissonis"
Linnaea 6: 238. 1831.
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|common_names=Chamisso arnica;leafy arnica;arnica de Chamisso | |common_names=Chamisso arnica;leafy arnica;arnica de Chamisso | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
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|publication title=Linnaea | |publication title=Linnaea | ||
|publication year=1831 | |publication year=1831 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V21_930.xml |
|tribe=Asteraceae tribe Heliantheae | |tribe=Asteraceae tribe Heliantheae | ||
|subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | |subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae | ||
Latest revision as of 20:15, 5 November 2020
Plants 20–80(–150) cm. Stems usually branched from mid heights or distally. Leaves 4–10 pairs, mostly cauline (evenly distributed; basal leaves often withered by flowering, 1–2 pairs, subsessile to short-petiolate); sessile (proximalmost with membranous connate-sheathing bases); blades lance-elliptic, broadly oblanceolate, or oblong, 5–20 × 2–6(–8) cm, margins entire or remotely denticulate to prominently dentate, apices acute, faces nearly glabrous or puberulent to sparsely or densely white-tomentose-pilose. Heads (1–)3–10(–16). Involucres campanulate (rarely hemispheric). Phyllaries 8–23, nearly linear to narrowly lanceolate (apices each with conspicuous tuft of white hairs). Ray florets 8–20; corollas yellow. Disc florets: corollas yellow; anthers yellow. Cypselae gray to brown, 3–8 mm, subglabrous to sparsely hirsutulous, stipitate-glandular; pappi stramineous, bristles barbellate to subplumose. 2n = 38, 57, 76.
Phenology: Flowering Apr–Sep.
Habitat: Moist meadows and conifer forests, stream banks, late snow-melt areas, often montane to subalpine
Elevation: 0–3500 m
Distribution
Alta., B.C., Man., N.W.T., Ont., Que., Sask., Yukon, Alaska, Ariz., Calif., Colo., Idaho, Mont., Nev., N.Mex., Oreg., Utah, Wash., Wyo.
Discussion
Selected References
None.