View source for Symphyotrichum falcatum var. commutatum

{{Treatment/ID
|accepted_name=Symphyotrichum falcatum var. commutatum
|accepted_authority=(Torrey & A. Gray) G. L. Nesom
|publications={{Treatment/Publication
|title=Phytologia
|place=77: 281. 1995
|year=1995
}}
|basionyms={{Treatment/ID/Basionym
|name=Aster multiflorus var. commutatus
|authority=Torrey & A. Gray
|rank=variety
|publication_title=Fl. N. Amer.
|publication_place=2: 125. 1841
}}
|synonyms={{Treatment/ID/Synonym
|name=Aster commutatus
|authority=(Torrey & A. Gray) A. Gray
|rank=species
}} {{Treatment/ID/Synonym
|name=Aster commutatus var. crassulus
|authority=(Rydberg) S. F. Blake
|rank=variety
}} {{Treatment/ID/Synonym
|name=Aster commutatus var. polycephalus
|authority=(Rydberg) S. F. Blake
|rank=variety
}} {{Treatment/ID/Synonym
|name=Aster cordineri
|authority=Linnaeus
|rank=species
}} {{Treatment/ID/Synonym
|name=Aster crassulus
|authority=Lindley
|rank=species
}} {{Treatment/ID/Synonym
|name=Aster ericoides var. commutatus
|authority=(Torrey & A. Gray) B. Boivin
|rank=variety
}} {{Treatment/ID/Synonym
|name=Aster ericoides var. polycephalus
|authority=(Rydberg) F. C. Gates
|rank=variety
}} {{Treatment/ID/Synonym
|name=Aster falcatus subsp. commutatus
|authority=(Torrey & A. Gray) A. G. Jones
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Aster falcatus var. commutatus
|authority=(Torrey & A. Gray) A. G. Jones
|rank=variety
}} {{Treatment/ID/Synonym
|name=Aster falcatus var. crassulus
|authority=(Rydberg) Cronquist
|rank=variety
}} {{Treatment/ID/Synonym
|name=Aster incanopilosus
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Aster multiflorus var. incanopilosus
|authority=(Lindley) Rydberg
|rank=variety
}} {{Treatment/ID/Synonym
|name=Symphyotrichum falcatum subsp. commutatum
|authority=(Torrey & A. Gray) Semple
|rank=subspecies
}} {{Treatment/ID/Synonym
|name=Symphyotrichum falcatum var. commutatum
|authority=(Torrey & A. Gray) G. L. Nesom
|rank=variety
}} {{Treatment/ID/Synonym
|name=Symphyotrichum falcatum var. crassulum
|authority=(Torrey & A. Gray) G. L. Nesom
|rank=variety
}} {{Treatment/ID/Synonym
|name=Virgulus falcatus subsp. commutatus
|authority=(Torrey & A. Gray) Schaak
|rank=subspecies
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Symphyotrichum;Symphyotrichum subg. Virgulus;Symphyotrichum falcatum;Symphyotrichum falcatum var. commutatum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Astereae]]</div><div class="higher-taxon"><small>genus</small>[[Symphyotrichum]]</div><div class="higher-taxon"><small>subgenus</small>[[Symphyotrichum subg. Virgulus]]</div><div class="higher-taxon"><small>species</small>[[Symphyotrichum falcatum]]</div><div class="higher-taxon"><small>variety</small>[[Symphyotrichum falcatum var. commutatum]]</div></div>
|volume=Volume 20
|mention_page=
|treatment_page=page 497
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>colonial, sometimes ± cespitose, usually densely hairy; long-rhizomatous (stems single) or short-rhizomatous with rhizomes branched and entangled (stems clumped), new shoots developing at ends of elongate rhizomes. <b>Stems</b> usually 1, sometimes 1–5+. <b>Peduncles</b> stout, bracts 2–10+. <b>Phyllaries</b> ± unequal, apices strongly squarrose. <b>2n</b> = 30.</span><!--

-->{{Treatment/Body
|phenology=Flowering Aug–Oct(–Nov, south).
|habitat=Dry soils, plains, hills, prairies, roadsides, along railroad rights-of-way, stream banks
|elevation=200–2500+ m
|distribution=Alta.;Man.;Ont.;Sask.;Ariz.;Colo.;Ill.;Iowa;Kans.;Minn.;Mo.;Mont.;Nebr.;N.Mex.;N.Dak.;Okla.;S.Dak.;Tex.;Utah;Wis.;Wyo.;Mexico (Chihuahua;Coahuila;Durango;Jalisco;Nuevo León;Sonora).
|discussion=<p>Variety commutatum is introduced in Ontario, Illinois, Missouri, and Wisconsin, and possibly other eastern states. A. G. Jones (1978) treated it as a subspecies with two varieties on the basis of habit and head traits. Variety commutatum in the sense of Jones has decumbent or ascending stems usually branched proximally, heads in racemiform or diffuse paniculiform arrays, rarely secund, usually with 40–50(–60) florets. Variety crassulum in the sense of Jones has erect stems branched near the middle, with spreading branches, heads in paniculiform arrays, often somewhat secund, and with 35–40(–45) florets. Intermediates occur; Jones’s varieties are not recognized here.</p><!--
--><p>The name <i>Aster</i> ramulosus Lindley var. incanopilosus Lindley (in W. J. Hooker 1834) has priority at the varietal level; the combination in <i>Symphyotrichum</i> has yet to be made.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Symphyotrichum falcatum var. commutatum
|authority=(Torrey & A. Gray) G. L. Nesom
|rank=variety
|parent rank=species
|synonyms=Aster commutatus;Aster commutatus var. crassulus;Aster commutatus var. polycephalus;Aster cordineri;Aster crassulus;Aster ericoides var. commutatus;Aster ericoides var. polycephalus;Aster falcatus subsp. commutatus;Aster falcatus var. commutatus;Aster falcatus var. crassulus;Aster incanopilosus;Aster multiflorus var. incanopilosus;Symphyotrichum falcatum subsp. commutatum;Symphyotrichum falcatum var. commutatum;Symphyotrichum falcatum var. crassulum;Virgulus falcatus subsp. commutatus
|basionyms=Aster multiflorus var. commutatus
|family=Asteraceae
|phenology=Flowering Aug–Oct(–Nov, south).
|habitat=Dry soils, plains, hills, prairies, roadsides, along railroad rights-of-way, stream banks
|elevation=200–2500+ m
|distribution=Alta.;Man.;Ont.;Sask.;Ariz.;Colo.;Ill.;Iowa;Kans.;Minn.;Mo.;Mont.;Nebr.;N.Mex.;N.Dak.;Okla.;S.Dak.;Tex.;Utah;Wis.;Wyo.;Mexico (Chihuahua;Coahuila;Durango;Jalisco;Nuevo León;Sonora).
|reference=None
|publication title=Phytologia
|publication year=1995
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V20_1115.xml
|tribe=Asteraceae tribe Astereae
|genus=Symphyotrichum
|subgenus=Symphyotrichum subg. Virgulus
|species=Symphyotrichum falcatum
|variety=Symphyotrichum falcatum var. commutatum
}}<!--

-->[[Category:Treatment]][[Category:Symphyotrichum falcatum]]