View source for Symphyotrichum sericeum

{{Treatment/ID
|accepted_name=Symphyotrichum sericeum
|accepted_authority=(Ventenat) G. L. Nesom
|publications={{Treatment/Publication
|title=Phytologia
|place=77: 291. 1995
|year=1995
}}
|common_names=Western silvery aster
|basionyms={{Treatment/ID/Basionym
|name=Aster sericeus
|authority=Ventenat
|rank=species
|publication_title=Descr. Pl. Nouv., plate
|publication_place=33. 1800
}}
|synonyms={{Treatment/ID/Synonym
|name=Lasallea sericea
|authority=(Ventenat) Greene
|rank=species
}} {{Treatment/ID/Synonym
|name=Virgulus sericeus
|authority=(Ventenat) Reveal & Keener
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Symphyotrichum;Symphyotrichum subg. Virgulus;Symphyotrichum sericeum
|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 sericeum]]</div></div>
|volume=Volume 20
|mention_page=page 473, 483
|treatment_page=page 494
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> (20–)30–70 cm, cespitose, eglandular; with short, woody, cormoid caudices, or short rhizomes. <b>Stems</b> 1–5+, ascending to erect (thin, grayish brown to dark brown), glabrous proximally, densely canescent distally. <b>Leaves</b> (silvery) firm, soft; basal withering by flowering, sessile, blades (1–3 nerved) elliptic-lanceolate, 10–40 × 5–15 mm, bases cuneate, weakly sheathing, margins usually entire, rarely remotely serrate, piloso-ciliate, apices acute, faces less copiously hairy than cauline; proximal cauline withering by flowering, sessile, blades oblanceolate or oblong to linear-lanceolate, 15–30(–50) × 4–10 mm, slightly and progressively reduced distally, bases rounded, subclasping, margins entire, silky-pilose, apices obtuse to acute, mucronulate, faces sparsely to densely silky-pilose; distal sessile, blades lanceolate, 10–30 × 5–8 mm, little reduced distally, bases cuneate, margins entire, apices acute, mucronate, faces ± densely silky. <b>Heads</b> in open, paniculiform arrays, branches sparse, fastigiate, often arching (1–5+ per branch). <b>Peduncles</b> subsessile or 0.5–3(–5) cm, densely sericeo-strigose, bracts crowded, 4–8(–10) mm, grading into phyllaries. <b>Involucres</b> campanulate to cylindric, (5–)7.5–10 mm. <b>Phyllaries</b> in 3–5(–6) series, outer ovate with expanded distal portion [(4–)5–6 mm], mid ovate-lanceolate [6–8(–10) mm] with expanded green portions, inner linear, unequal or sometimes subequal, outer often foliaceous, bases (mid) scarious, margins silky, green zones restricted to expanded distal 1/2–2/3 (obscured by hairs), apices (outer) spreading or squarrose to reflexed, acute, mucronulate, faces densely long-silky. <b>Ray</b> florets (10–)15–30; corollas usually rose-purple to deep purple, rarely white, laminae 8.5–11 × 1–1.5 mm. <b>Disc</b> florets (15–)25–35; corollas pink turning purple, (5–)5.5–7 mm, tubes shorter than narrowly funnelform throats (both thinly puberulent), lobes deltate, 0.7–0.9 mm. <b>Cypselae</b> purple or brown, obovoid, not compressed, 2–3 mm, 7–10-nerved (prominent), faces glabrous; pappi whitish or tawny, 6–7 mm. <b>2n</b> = 10, 20.</span><!--

-->{{Treatment/Body
|phenology=Flowering Aug–Oct.
|habitat=Open, dry, deep, sandy or loamy soils, broken limestone outcrops, open-wooded bluffs, open woods, open calcareous hammocks, prairies, fields, sand barrens, dunes, dry banks, rarely acidic shield rocks
|elevation=100–500+ m
|distribution=Man.;Ont.;Ark.;Ga.;Ill.;Ind.;Iowa;Kans.;Mich.;Minn.;Mo.;Nebr.;N.Dak.;Ohio;Okla.;S.Dak.;Tenn.;Tex.;Wis.;West Indies (Bahamas).
|discussion=<p><i>Symphyotrichum sericeum</i> is known in the Bahamas as S. lucayanum (Britton) G. L. Nesom [syn. <i>Aster</i> lucayanus Britton, Virgulus lucayanus (Britton) Reveal & Keener]. It is of conservation concern in Indiana, Michigan, and Canada. <i>Symphyotrichum sericeum</i> is distinct and unlikely to be confused with other species due to its silvery-silky leaves and phyllaries, open arrays, and cormoid rootstocks. <i>Aster</i> sericeus forma albiligulatus Fassett is a white form of the species, in contrast to the typically purple forma sericeus; these do not deserve formal recognition.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Symphyotrichum sericeum
|authority=(Ventenat) G. L. Nesom
|rank=species
|parent rank=subgenus
|synonyms=Lasallea sericea;Virgulus sericeus
|basionyms=Aster sericeus
|family=Asteraceae
|phenology=Flowering Aug–Oct.
|habitat=Open, dry, deep, sandy or loamy soils, broken limestone outcrops, open-wooded bluffs, open woods, open calcareous hammocks, prairies, fields, sand barrens, dunes, dry banks, rarely acidic shield rocks
|elevation=100–500+ m
|distribution=Man.;Ont.;Ark.;Ga.;Ill.;Ind.;Iowa;Kans.;Mich.;Minn.;Mo.;Nebr.;N.Dak.;Ohio;Okla.;S.Dak.;Tenn.;Tex.;Wis.;West Indies (Bahamas).
|reference=None
|publication title=Phytologia
|publication year=1995
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V20_1109.xml
|tribe=Asteraceae tribe Astereae
|genus=Symphyotrichum
|subgenus=Symphyotrichum subg. Virgulus
|species=Symphyotrichum sericeum
}}<!--

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