View source for Symphyotrichum ascendens

{{Treatment/ID
|accepted_name=Symphyotrichum ascendens
|accepted_authority=(Lindley) G. L. Nesom
|publications={{Treatment/Publication
|title=Phytologia
|place=77: 276. 1995
|year=1995
}}
|common_names=Long-leaved or intermountain or western aster
|special_status={{Treatment/ID/Special_status
|code=F
|label=Illustrated
}}{{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Aster ascendens
|authority=Lindley
|rank=species
|publication_title=in W. J. Hooker, Fl. Bor.-Amer.
|publication_place=2: 8. 1834
}}
|synonyms={{Treatment/ID/Synonym
|name=Aster chilensis subsp. ascendens
|authority=(Lindley) Cronquist
|rank=subspecies
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Symphyotrichum;Symphyotrichum subg. Ascendentes;Symphyotrichum ascendens
|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. Ascendentes]]</div><div class="higher-taxon"><small>species</small>[[Symphyotrichum ascendens]]</div></div>
|volume=Volume 20
|mention_page=page 472
|treatment_page=page 538
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials </b>20–60 cm, colonial; long-rhizomatous. <b>Stems</b> 1–5+, ascending to erect, densely and uniformly strigose, especially distally. <b>Leaves</b> (grayish green) thin to firm, margins entire, apices acute, faces glabrous or strigose; basal usually persistent, petiolate, blades oblanceolate, 50–150 × 5–12(–15) mm, bases attenuate or cuneate, margins entire, apices usually acute; proximal cauline sessile or subpetiolate, blades oblong to narrowly obovate, 50–120 × 5–12 mm, bases attenuate or cuneate; distal sessile, blades 30–70 × 4–10 mm, reduced distally, bases cuneate to ± rounded. <b>Heads</b> in paniculiform arrays, branches ascending. <b>Peduncles</b> moderately to densely strigose, bracts 1–4, linear to oblanceolate. <b>Involucres</b> campanulate, 4–7 mm. <b>Phyllaries</b> in 3–5 series, narrowly oblanceolate or linear (outer) to linear (inner), unequal, bases indurate, margins entire, green zones obovate to elliptic, apices obtuse, faces densely strigose. <b>Ray</b> florets (10–)15–40; corollas violet, laminae 8–13 × 1–1.5 mm. <b>Disc</b> florets 25–65(–80); corollas yellow, sometimes purple-tinged, 4–6 mm, lobes triangular, 0.4–0.8 mm. <b>Cypselae</b> brown, cylindric to obovoid, not compressed, 2–3.5 mm, 3–5-nerved, faces hairy; pappi whitish, 4–7 mm. <b>2n</b> = 26, 36, 52.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jul–Aug.
|habitat=Meadows, grasslands, damp areas in sagebrush steppe and Ponderosa pine woodlands
|elevation=500–3200 m
|distribution=Alta.;B.C.;Sask.;Ariz.;Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;N.Dak.;Oreg.;Utah;Wash.;Wyo.
|discussion=<p><i>Symphyotrichum ascendens</i> is widely distributed in the Great Basin. It is an allopolyploid derived from the hybrid between <i>S. spathulatum</i> (x = 8) and <i>S. falcatum</i> (x = 5). Chromosome numbers differ markedly in their geographic distribution, 2n = 26 prevailing in the southwestern part of the range, and 2n = 52 in the northeastern part (G. A. Allen 1985) Backcrosses to both parental species or hybrids with related taxa are sometimes seen where the ranges overlap.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Symphyotrichum ascendens
|authority=(Lindley) G. L. Nesom
|rank=species
|parent rank=subgenus
|synonyms=Aster chilensis subsp. ascendens
|basionyms=Aster ascendens
|family=Asteraceae
|phenology=Flowering Jul–Aug.
|habitat=Meadows, grasslands, damp areas in sagebrush steppe and Ponderosa pine woodlands
|elevation=500–3200 m
|distribution=Alta.;B.C.;Sask.;Ariz.;Calif.;Colo.;Idaho;Mont.;Nev.;N.Mex.;N.Dak.;Oreg.;Utah;Wash.;Wyo.
|reference=None
|publication title=Phytologia
|publication year=1995
|special status=Illustrated;Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V20_1201.xml
|tribe=Asteraceae tribe Astereae
|genus=Symphyotrichum
|subgenus=Symphyotrichum subg. Ascendentes
|species=Symphyotrichum ascendens
}}<!--

-->[[Category:Treatment]][[Category:Symphyotrichum subg. Ascendentes]]