View source for Symphyotrichum pygmaeum

{{Treatment/ID
|accepted_name=Symphyotrichum pygmaeum
|accepted_authority=(Lindley) Brouillet & S. Selliah
|publications={{Treatment/Publication
|title=Sida
|place=21: 1635. 2005
|year=2005
}}
|common_names=Pygmy aster
|basionyms={{Treatment/ID/Basionym
|name=Aster pygmaeus
|authority=Lindley
|publication_title=in W. J. Hooker, Fl. Bor.-Amer.
|publication_place=2: 6. 1834
}}
|synonyms={{Treatment/ID/Synonym
|name=Aster sibiricus subsp. pygmaeus
|authority=(Lindley) Á. Löve & D. Löve
}} {{Treatment/ID/Synonym
|name=Aster sibiricus var. pygmaeus
|authority=(Lindley) Cody
}} {{Treatment/ID/Synonym
|name=Eurybia pygmaea
|authority=unknown
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Symphyotrichum;Symphyotrichum subg. Virgulus;Symphyotrichum pygmaeum
|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 pygmaeum]]</div></div>
|volume=Volume 20
|mention_page=page 470, 483
|treatment_page=page 485
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials </b>1.5–15 cm, cespitose; with short, branched caudices, long-rhizomatous (both wiry). <b>Stems</b> 1–10+, decumbent to ascending (purple), sparsely or densely villous to woolly distally. <b>Leaves</b> firm, margins usually entire, sometimes remotely pauci-serrulate, sparsely villoso-ciliate, apices obtuse to acute, sometimes mucronate; basal often withering by flowering, petiolate (petioles widely winged, sheathing), blades spatulate, 5–19 × 2–4 mm, bases attenuate, apices rounded, faces glabrous or sparsely villous proximally; proximal sessile, blades lanceolate to oblong-lanceolate or (sometimes) -spatulate, 30–50 × 3–10 mm, bases ± clasping, apices obtuse to acute, faces glabrous or sparsely villous; distal sessile, blades lanceolate to oblong, 13–19 × 2–4.5 mm, bases clasping to cuneate, apices acute to obtuse, faces sparsely woolly, sometimes sparsely stipitate-glandular. <b>Heads</b> borne singly. <b>Peduncles</b> densely villous to lanate distally, bracts 0. <b>Involucres</b> hemispherico-campanulate, 9–12.5 mm. <b>Phyllaries</b> in 3–4 series (dark purple), lance-oblong or oblong (outer) to linear-lanceolate or sometimes linear (inner), subequal, outer ± herbaceous, bases not indurate, margins herbaceous (outer) to narrowly scarious and erose proximally (inner), strongly purple, villoso-ciliate in green portion, green zones (inner) 1/2–2/3 of distal portions, apices acute to acuminate, inner sometimes apiculate, appressed to loose and squarrose (particularly outer), faces woolly to densely villous, sparsely to moderately stipitate-glandular. <b>Ray</b> florets 16–28; corollas purple to violet, laminae 12–18 × 2–3.2 mm. <b>Disc</b> florets 53–55; corollas yellow, 5.6–6.5 mm, throats funnelform, lobes triangular, 0.5–0.8 mm (red or white clavate-hairy). <b>Cypselae</b> fusiform to cylindro-obconic, ± compressed, [size unknown], 4–7-nerved (faint), faces ± densely strigillose; pappi whitish to yellowish, 5–7.2 mm.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer.
|habitat=Open, active, moist sand dunes, sandy or silty stream banks and terraces, usually cyclically disturbed gravelly tundra and tundra slopes
|elevation=0–200+ m
|distribution=N.W.T.;Nunavut;Alaska.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Symphyotrichum pygmaeum</i> has long been included within or associated with <i>Eurybia sibirica</i>. Though similar in appearance, the two species can be distinguished by the glands present on <i>S. pygmaeum</i> on the distal leaves and phyllaries.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Symphyotrichum pygmaeum
|author=
|authority=(Lindley) Brouillet & S. Selliah
|rank=species
|parent rank=subgenus
|synonyms=Aster sibiricus subsp. pygmaeus;Aster sibiricus var. pygmaeus;Eurybia pygmaea
|basionyms=Aster pygmaeus
|family=Asteraceae
|phenology=Flowering summer.
|habitat=Open, active, moist sand dunes, sandy or silty stream banks and terraces, usually cyclically disturbed gravelly tundra and tundra slopes
|elevation=0–200+ m
|distribution=N.W.T.;Nunavut;Alaska.
|reference=None
|publication title=Sida
|publication year=2005
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V19-20-21/V20_1090.xml
|tribe=Asteraceae tribe Astereae
|genus=Symphyotrichum
|subgenus=Symphyotrichum subg. Virgulus
|species=Symphyotrichum pygmaeum
}}<!--

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