View source for Symphyotrichum oblongifolium

{{Treatment/ID
|accepted_name=Symphyotrichum oblongifolium
|accepted_authority=(Nuttall) G. L. Nesom
|publications={{Treatment/Publication
|title=Phytologia
|place=77: 287. 1995
|year=1995
}}
|common_names=Oblong-leaved or aromatic aster
|basionyms={{Treatment/ID/Basionym
|name=Aster oblongifolius
|authority=Nuttall
|rank=species
|publication_title=Gen. N. Amer. Pl.
|publication_place=2: 156. 1818
}}
|synonyms={{Treatment/ID/Synonym
|name=Virgulus oblongifolius
|authority=(Nuttall) Reveal & Keener
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Symphyotrichum;Symphyotrichum subg. Virgulus;Symphyotrichum oblongifolium
|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 oblongifolium]]</div></div>
|volume=Volume 20
|mention_page=page 471, 483, 487
|treatment_page=page 486
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 10–80(–100) cm, colonial; with thick, woody, short-branched caudices, sometimes ± cormoid, and thin, woody rhizomes. <b>Stems</b> 1–10+, ascending to erect or decumbent, light to dark brown, proximally glabrous, distally hispiduloso-hirsute or hirtellous, stipitate-glandular. <b>Leaves</b> (yellowish to dark green) thin, margins entire; basal sometimes persistent, sessile, blades (3-nerved) oblanceolate to spatulate, 20–50(–70) × 5–15 mm, margins entire (remotely serrate), coarsely ciliate, apices rounded, short-mucronate, faces usually hirsute, rarely glabrous, often also stipitate-glandular; proximal cauline sessile (often with clusters of smaller leaves in axils), blades oblong or linear-lanceolate, (15–)30–100 × 5–15(–20) mm, bases rounded or slightly clasping, margins scabrellous, apices acute to obtuse, spinulose-mucronate, abaxial faces scabrous, often stipitate-glandular, adaxial hirsute; distal sessile, blades lanceolate to oblong, 20–80 × 2–10(–20) mm, greatly reduced distally, bases cuneate to subclasping, margins ciliate, stipitate-glandular, apices acute to obtuse, white-mucronate, faces moderately strigose, moderately to densely stipitate-glandular. <b>Heads</b> in ample, corymbiform to diffusely paniculiform arrays, branches initially patent, then ascending (often from proximal nodes). <b>Peduncles</b> 0.5–5 cm, hispid, stipitate-glandular, bracts dense, spreading or squarrose (rarely ascending), linear to narrowly oblong, 3–8 mm, grading into phyllaries, spinulose, short-strigose. <b>Involucres</b> campanulate, (5–)7–9 mm. <b>Phyllaries</b> in 4–5(–6) series, outer oblanceolate, mid linear-lanceolate, inner linear, usually unequal, sometimes subequal, bases ± indurate, margins hyaline, scarious, erose, ciliate or ciliolate and/or stipitate-glandular, green zones often broadly foliaceous (outer), green in distal 1/3–1/2 (mid), apices spreading to reflexed (outer), acute, mid long-acuminate, faces moderately hairy, stipitate-glandular. <b>Ray</b> florets (10–)25–35; corollas light to dark rose-purple, lavender to deep purple, laminae 9–13(–15) × 1–2 mm. <b>Disc</b> florets (25–)30–40(–50); corollas yellow turning brown or reddish purple, 4.5–5.5(–6) mm, tubes 1/2 the funnelform to nearly tubular throats, lobes triangular, 0.4–0.7 mm. <b>Cypselae</b> dull purple or brown (nerves stramineous), obovoid, slightly falcate, not compressed, 2–2.5 mm, 7–10-nerved, faces sparsely strigillose or sericeous; pappi tawny (barb tips sometimes rose-tinged), 3.5–6 mm. <b>2n</b> = 10, 20.</span><!--

-->{{Treatment/Body
|phenology=Flowering Aug–Nov.
|habitat=Open, dry, rocky, sandy, gravelly, or shaly soils, limestone glades and outcrops, sandstone or calcareous cliffs, open-wooded bluffs, prairies, pastures, dunes, roadsides
|elevation=100–1500+ m
|distribution=Ala.;Ark.;Colo.;Ill.;Ind.;Iowa;Kans.;Ky.;Md.;Minn.;Miss.;Mo.;Mont.;Nebr.;N.Mex.;N.C.;N.Dak.;Ohio;Okla.;Pa.;S.Dak.;Tenn.;Tex.;Va.;W.Va.;Wis.;Wyo.;Mexico (Coahuila).
|discussion=<p><i>Symphyotrichum oblongifolium</i> varies greatly in leaf size and shape, the extremes of which have been the bases for varieties that are not distinct but merely represent the ends of a continuum of variation. The species is similar to <i>S. ×amethystinum</i> (<i>S. ericoides</i> × <i>S. novae-angliae</i>), but the latter has more hairy stems and leaves, and eglandular phyllaries. A leafy cultivar of the species is offered in the horticulture trade. A form with pink rays, merely a population variation, has been recognized as distinct from the more purple typical form: <i>Aster</i> oblongifolius forma roseoligulatus Shinners. <i>Symphyotrichum</i> batesii (Rydberg) G. L. Nesom (syn. <i>Aster</i> batesii Rydberg), reported from Nebraska, is the intersectional hybrid of this species with <i>S. ericoides </i>var.<i> ericoides</i>.</p>
|tables=
|references=
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-->{{#Taxon:
name=Symphyotrichum oblongifolium
|authority=(Nuttall) G. L. Nesom
|rank=species
|parent rank=subgenus
|synonyms=Virgulus oblongifolius
|basionyms=Aster oblongifolius
|family=Asteraceae
|phenology=Flowering Aug–Nov.
|habitat=Open, dry, rocky, sandy, gravelly, or shaly soils, limestone glades and outcrops, sandstone or calcareous cliffs, open-wooded bluffs, prairies, pastures, dunes, roadsides
|elevation=100–1500+ m
|distribution=Ala.;Ark.;Colo.;Ill.;Ind.;Iowa;Kans.;Ky.;Md.;Minn.;Miss.;Mo.;Mont.;Nebr.;N.Mex.;N.C.;N.Dak.;Ohio;Okla.;Pa.;S.Dak.;Tenn.;Tex.;Va.;W.Va.;Wis.;Wyo.;Mexico (Coahuila).
|reference=None
|publication title=Phytologia
|publication year=1995
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V19-20-21/V20_1093.xml
|tribe=Asteraceae tribe Astereae
|genus=Symphyotrichum
|subgenus=Symphyotrichum subg. Virgulus
|species=Symphyotrichum oblongifolium
}}<!--

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