View source for Arnica cordifolia

{{Treatment/ID
|accepted_name=Arnica cordifolia
|accepted_authority=Hooker
|publications={{Treatment/Publication
|title=Fl. Bor.-Amer.
|place=1: 331. 1834
|year=1834
}}
|common_names=Heartleaf arnica
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Arnica cordifolia var. pumila
|authority=(Rydberg) Maguire
|rank=variety
}} {{Treatment/ID/Synonym
|name=Arnica paniculata
|authority=Fernald
|rank=species
}} {{Treatment/ID/Synonym
|name=Arnica whitneyi
|authority=
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Chaenactidinae;Arnica;Arnica cordifolia
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Heliantheae]]</div><div class="higher-taxon"><small>subtribe</small>[[Asteraceae (tribe Heliantheae) subtribe Chaenactidinae]]</div><div class="higher-taxon"><small>genus</small>[[Arnica]]</div><div class="higher-taxon"><small>species</small>[[Arnica cordifolia]]</div></div>
|volume=Volume 21
|mention_page=page 368
|treatment_page=page 374
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>10–40(–70) cm. <b>Stems</b> usually simple, sometimes branched. <b>Leaves</b> 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). <b>Heads</b> 1, or 3–5(–10). <b>Involucres</b> broadly campanulate. <b>Phyllaries</b> 10–20, narrowly ovate to lanceolate. <b>Ray</b> florets 6–13; corollas yellow. <b>Disc</b> florets: corollas yellow; anthers yellow. <b>Cypselae</b> dark gray, 5–10 mm, sparsely to densely hirsute (hairs duplex), sometimes stipitate-glandular as well; pappi white, bristles barbellate. <b>2n</b> = 38, 57, 76, 95, 114.</span><!--

-->{{Treatment/Body
|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.
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Arnica cordifolia
|authority=Hooker
|rank=species
|parent rank=genus
|synonyms=Arnica cordifolia var. pumila;Arnica paniculata;Arnica whitneyi
|basionyms=
|family=Asteraceae
|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.
|reference=None
|publication title=Fl. Bor.-Amer.
|publication year=1834
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V21_938.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae
|genus=Arnica
|species=Arnica cordifolia
}}<!--

-->[[Category:Treatment]][[Category:Arnica]]