View source for Arnica lanceolata

{{Treatment/ID
|accepted_name=Arnica lanceolata
|accepted_authority=Nuttall
|publications={{Treatment/Publication
|title=Trans. Amer. Philos. Soc., n. s.
|place=7: 407. 1841
|year=1841
}}
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Asteraceae;Asteraceae tribe Heliantheae;Asteraceae (tribe Heliantheae) subtribe Chaenactidinae;Arnica;Arnica lanceolata
|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 lanceolata]]</div></div>
|volume=Volume 21
|mention_page=page 368
|treatment_page=page 373
}}<!--

--><span class="statement" id="st-d0_s0" data-properties="whole_organism atypical some measurement;whole_organism some measurement;whole_organism growth form"><b>Plants </b>(5–) 20–80 cm.</span> <span class="statement" id="st-d0_s1" data-properties="stem arrangement;stem architecture;stem architecture"><b>Stems </b>solitary to densely clumped, simple or branched among heads.</span> <span class="statement" id="st-d0_s2" data-properties="leaf atypical quantity;leaf quantity"><b>Leaves </b>4–8 (–10) pairs, mostly cauline;</span> <span class="statement" id="st-d0_s3" data-properties="leaf position;leaf architecture;leaf architecture">usually sessile (sometimes with partly connate-sheathing bases), sometimes petiolate (proximalmost);</span> <span class="statement" id="st-d0_s4" data-properties="blade shape;blade shape;blade shape;blade shape;blade shape;blade shape;blade shape;blade atypical length;blade length;blade atypical width;blade atypical width;blade width;margin shape;apex shape;apex shape;face pubescence">blades lance-elliptic, lanceolate, oblanceolate, obovate, or ovate, 4–12 (–20) × (1–) 2–6 (–8) cm, margins subentire to dentate-serrate, apices usually acute, rarely obtuse, faces glabrate to pilose.</span> <span class="statement" id="st-d0_s5" data-properties="head atypical quantity;head atypical quantity;head quantity"><b>Heads </b>(1–) 3–10 (–20).</span> <span class="statement" id="st-d0_s6" data-properties="involucre shape"><b>Involucres </b>narrowly campanulate to turbinate.</span> <span class="statement" id="st-d0_s7" data-properties="phyllary atypical quantity;phyllary quantity;phyllary shape"><b>Phyllaries </b>8–15 (–19), narrowly to broadly lanceolate.</span> <span class="statement" id="st-d0_s8" data-properties="ray-floret atypical quantity;ray-floret atypical quantity;ray-floret quantity"><b>Ray-</b>florets (5–) 7–17 (–20);</span> <span class="statement" id="st-d0_s9" data-properties="corolla coloration">corollas yellow.</span> <span class="statement" id="st-d0_s10" data-properties="corolla coloration"><b>Disc-</b>florets: corollas yellow;</span> <span class="statement" id="st-d0_s11" data-properties="anther coloration">anthers yellow.</span> <span class="statement" id="st-d0_s12" data-properties="cypsela coloration;cypsela some measurement;cypsela pubescence;cypsela pubescence"><b>Cypselae </b>brown, 4–8 mm, sparsely hirsutulous, stipitate-glandular;</span> <span class="statement" id="st-d0_s13" data-properties="pappus coloration;bristle architecture">pappi tawny, bristles subplumose.</span><!--

-->{{Treatment/Body
|distribution=Alta.;B.C.;N.B.;N.W.T.;Que.;Yukon;Alaska;Calif.;Idaho;Maine;Mont.;N.H.;Nev.;Oreg.;Utah;Wash.;Wyo.
|discussion=<p>Subspecies 2 (2 in the flora).</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Cauline leaves mostly sessile (proximalmost pair petiolate); e North America
|[[Arnica lanceolata subsp. lanceolata|Arnica lanceolata subsp. lanceolata]]
|-id=key-0-1
|1
|Cauline leaves sessile (including proximalmost pair, bases sometimes partly connate-sheathing); w North America
|[[Arnica lanceolata subsp. prima|Arnica lanceolata subsp. prima]]
|}
</div></div><!--

-->{{#Taxon:
name=Arnica lanceolata
|authority=Nuttall
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Asteraceae
|distribution=Alta.;B.C.;N.B.;N.W.T.;Que.;Yukon;Alaska;Calif.;Idaho;Maine;Mont.;N.H.;Nev.;Oreg.;Utah;Wash.;Wyo.
|reference=None
|publication title=Trans. Amer. Philos. Soc., n. s.
|publication year=1841
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V19-20-21/V21_934.xml
|tribe=Asteraceae tribe Heliantheae
|subtribe=Asteraceae (tribe Heliantheae) subtribe Chaenactidinae
|genus=Arnica
|species=Arnica lanceolata
|anther coloration=yellow
|apex shape=obtuse;acute
|blade atypical length=12cm;20cm
|blade atypical width=6cm;8cm
|blade length=4cm;12cm
|blade shape=ovate;obovate;ovate;obovate;oblanceolate;lanceolate;lance-elliptic
|blade width=2cm;6cm
|bristle architecture=subplumose
|corolla coloration=yellow;yellow
|cypsela coloration=brown
|cypsela pubescence=stipitate-glandular;hirsutulous
|cypsela some measurement=4mm;8mm
|face pubescence=glabrate;pilose
|head atypical quantity=10;20
|head quantity=3;10
|involucre shape=narrowly campanulate;turbinate
|leaf architecture=petiolate;sessile
|leaf atypical quantity=8;10
|leaf position=cauline
|leaf quantity=4;8
|margin shape=subentire;dentate-serrate
|pappus coloration=tawny
|phyllary atypical quantity=15;19
|phyllary quantity=8;15
|phyllary shape=lanceolate
|ray-floret atypical quantity=17;20
|ray-floret quantity=7;17
|stem architecture=branched;simple
|stem arrangement=solitary;densely clumped
|whole_organism atypical some measurement=5cm;20cm
|whole_organism growth form=plant
|whole_organism some measurement=20cm;80cm
}}<!--

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