View source for Symphyotrichum hallii

{{Treatment/ID
|accepted_name=Symphyotrichum hallii
|accepted_authority=(A. Gray) G. L. Nesom
|publications={{Treatment/Publication
|title=Phytologia
|place=77: 283. 1995
|year=1995
}}
|common_names=Hall’s aster
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms={{Treatment/ID/Basionym
|name=Aster hallii
|authority=A. Gray
|rank=species
|publication_title=in A. Gray et al., Syn. Fl. N. Amer.
|publication_place=1(2): 191. 1884
}}
|synonyms={{Treatment/ID/Synonym
|name=Aster chilensis subsp. hallii
|authority=(A. Gray) Cronquist
|rank=subspecies
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Symphyotrichum;Symphyotrichum subg. Symphyotrichum;Symphyotrichum sect. Occidentales;Symphyotrichum hallii
|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. Symphyotrichum]]</div><div class="higher-taxon"><small>section</small>[[Symphyotrichum sect. Occidentales]]</div><div class="higher-taxon"><small>species</small>[[Symphyotrichum hallii]]</div></div>
|volume=Volume 20
|mention_page=page 469, 534, 537
|treatment_page=page 533
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 30–60 cm, colonial; long-rhizomatous. <b>Stems</b> 1–6, ascending to erect, glabrous or puberulent, especially distally. <b>Leaves</b> thin, margins entire, apices acute, faces glabrous or scabridulous; basal withering by flowering, petiolate, blades narrowly oblanceolate to linear, 10–60 × 2–10 mm, attenuate, margins entire; proximalmost cauline sometimes withering by flowering, sessile, blades linear to narrowly oblanceolate, 30–80 × 2–8 mm, bases cuneate, apices acute; distal sessile, blades linear, 10–50 × 2–8 mm, bases ± cuneate, truncate. <b>Heads</b> in racemiforn to paniculiform arrays, branches usually less than 10(–20) cm. <b>Peduncles</b> sparsely to densely hairy, bracts 3–10, linear to narrowly elliptic, much smaller than distal leaves. <b>Involucres</b> campanulate, 4–7 mm. <b>Phyllaries</b> in 5–6 series, appressed, narrowly oblanceolate (outer) to linear (inner), unequal, bases (outer) herbaceous or scarious less than 1/2, margins entire, green zones ovate to linear (inner), apices obtuse, faces glabrous. <b>Ray</b> florets 14–35; corollas usually white, sometimes pale violet, laminae 7–12 × 1–2 mm. <b>Disc</b> florets 20–35; corollas yellow, 4.5–6.5 mm, lobes triangular, 0.7–1 mm, glabrous. <b>Cypselae</b> brown, cylindric to obovoid, not compressed, 2–2.5 mm, 2–5-nerved, faces hairy; pappi white, 5–7 mm. <b>2n</b> = 16, 32, 48.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jul–Aug.
|habitat=Summer-dry grasslands and meadows
|elevation=0–500 m
|distribution=Oreg.;Wash.
|discussion=<p><i>Symphyotrichum hallii</i> is restricted to open habitats of the Puget Trough of western Washington and the Willamette Valley of western Oregon, with outlying stations in the Columbia Gorge and central Washington. Some of the polyploid races appear to be alloploids involving the sympatric <i>S. subspicatum</i>, with larger leaves and fewer, larger heads with violet rays.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Symphyotrichum hallii
|authority=(A. Gray) G. L. Nesom
|rank=species
|parent rank=section
|synonyms=Aster chilensis subsp. hallii
|basionyms=Aster hallii
|family=Asteraceae
|phenology=Flowering Jul–Aug.
|habitat=Summer-dry grasslands and meadows
|elevation=0–500 m
|distribution=Oreg.;Wash.
|reference=None
|publication title=Phytologia
|publication year=1995
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V20_1189.xml
|tribe=Asteraceae tribe Astereae
|genus=Symphyotrichum
|subgenus=Symphyotrichum subg. Symphyotrichum
|section=Symphyotrichum sect. Occidentales
|species=Symphyotrichum hallii
}}<!--

-->[[Category:Treatment]][[Category:Symphyotrichum sect. Occidentales]]