View source for Symphyotrichum racemosum

{{Treatment/ID
|accepted_name=Symphyotrichum racemosum
|accepted_authority=(Elliott) G. L. Nesom
|publications={{Treatment/Publication
|title=Phytologia
|place=77: 290. 1995
|year=1995
}}
|common_names=Small white or smooth white oldfield aster
|basionyms={{Treatment/ID/Basionym
|name=Aster racemosus
|authority=Elliott
|rank=species
|publication_title=Sketch Bot. S. Carolina
|publication_place=2: 348. 1823
}}
|synonyms={{Treatment/ID/Synonym
|name=Aster brachypholis
|authority=Small
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Astereae;Symphyotrichum;Symphyotrichum subg. Symphyotrichum;Symphyotrichum sect. Symphyotrichum;Symphyotrichum racemosum
|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. Symphyotrichum]]</div><div class="higher-taxon"><small>species</small>[[Symphyotrichum racemosum]]</div></div>
|volume=Volume 20
|mention_page=page 470, 495, 501, 514, 519, 521
|treatment_page=page 515
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials,</b> 30–90(–100) cm, colonial or cespitose; long-rhizomatous or with woody caudices. <b>Stems</b> 1–3+, erect (straight), glabrous or glabrate. <b>Leaves</b> thin, margins often ± revolute, scabrous, apices mucronate to mucronulate, faces glabrous or abaxial minutely pilosulous, cauline with clusters of smaller leaves in most axils; basal withering by flowering (new vernal rosettes often present), petiolate (petioles narrowly winged, sheathing, strigoso-ciliate), blades spatulate to oblanceolate, 5–40 × 5–15 mm, bases attenuate or cuneate to rounded, margins crenate-serrate, apices obtuse to acuminate; proximal cauline withering by flowering, petiolate or subpetiolate (proximalmost) or sessile (petioles winged, sparsely long strigoso-ciliate), blades elliptic or elliptic-lanceolate to lanceolate or linear-lanceolate, 20–70 × 3–20 mm, progressively reduced distally, bases clasping, margins becoming short-ciliate distally; distal (ascending or spreading) usually sessile, sometimes subpetiolate, blades linear-lanceolate to linear, 5–60+ × 1–8 mm, notably unequal in size, reduced distally, abruptly so on branches, bases cuneate to attenuate, margins serrulate or entire. <b>Heads</b> in diffuse, ± pyramidal, paniculiform arrays, branches ± lax, spreading horizontally or arching, racemiform, subtended by patent to reflexed branch leaves, often crowded but not (or barely) secund. <b>Peduncles</b> slender, 0.2–3+ cm or subsessile, hairy in lines, bracts 5–15, linear-elliptic to acicular, 1–2 mm, glabrous, grading into phyllaries. <b>Involucres</b> cylindric, (2.5–)3.5–4.5(–5.5) mm. <b>Phyllaries</b> in 4–6 series, appressed or outer ± spreading, oblong-lanceolate to linear (innermost) , unequal, bases indurate 1/4–1/2, margins narrowly scarious, hyaline, ciliolate, green zones oblanceolate to linear-oblanceolate, apices acute to acuminate, mucronate, sometimes lightly purple-tinged, faces glabrous. <b>Ray</b> florets (12–)16–20; corollas usually white, rarely pink, laminae 5–8 × 0.5–1.2 mm. <b>Disc</b> florets 10–20(–25); corollas cream or pale yellow becoming pink or red, (2.5–)3–4.5 mm, tubes shorter than narrowly funnelform throats, lobes recurved to erect, lanceolate, 0.5–1 mm. <b>Cypselae</b> gray to tan, obovoid, ± compressed, 1–1.8 mm, 4–5-nerved (faint), faces sparsely strigillose or sericeus; pappi white, 2.5–3.5 mm. <b>2n</b> = 16.</span><!--

-->{{Treatment/Body
|phenology=Flowering Aug–Oct.
|habitat=Moist to wet, often alluvial soils, often brackish, marshes, savannas, bogs, wet meadows, prairie swales, swamps, borders of swamps, open bottomwoods
|elevation=0–200 m
|distribution=N.B.;Ont.;Ala.;Ark.;Conn.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;Iowa;Ky.;La.;Maine;Md.;Mass.;Mo.;N.J.;N.Y.;N.C.;Ohio;Okla.;Pa.;R.I.;S.C.;Tenn.;Tex.;Vt.;Va.;W.Va.
|discussion=<p><i>Symphyotrichum racemosum</i> is introduced in Canada. The species is cultivated commercially under the name <i>Aster</i> ericoides cv. ‘Spray’. A. G. Jones (1989) reported hybridization with <i>S. dumosum</i>, <i>S. lateriflorum</i>, <i>S. lanceolatum </i>var.<i> interior</i>, and <i>S. ontarionis</i>. The name <i>Aster</i> vimineus Lamarck has been misapplied to this taxon.</p>
|tables=
|references=
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-->{{#Taxon:
name=Symphyotrichum racemosum
|authority=(Elliott) G. L. Nesom
|rank=species
|parent rank=section
|synonyms=Aster brachypholis
|basionyms=Aster racemosus
|family=Asteraceae
|phenology=Flowering Aug–Oct.
|habitat=Moist to wet, often alluvial soils, often brackish, marshes, savannas, bogs, wet meadows, prairie swales, swamps, borders of swamps, open bottomwoods
|elevation=0–200 m
|distribution=N.B.;Ont.;Ala.;Ark.;Conn.;Del.;D.C.;Fla.;Ga.;Ill.;Ind.;Iowa;Ky.;La.;Maine;Md.;Mass.;Mo.;N.J.;N.Y.;N.C.;Ohio;Okla.;Pa.;R.I.;S.C.;Tenn.;Tex.;Vt.;Va.;W.Va.
|reference=None
|publication title=Phytologia
|publication year=1995
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/eaa6e58056e40c9ef614d8f47aea294977a1a5e9/coarse_grained_fna_xml/V19-20-21/V20_1148.xml
|tribe=Asteraceae tribe Astereae
|genus=Symphyotrichum
|subgenus=Symphyotrichum subg. Symphyotrichum
|section=Symphyotrichum sect. Symphyotrichum
|species=Symphyotrichum racemosum
}}<!--

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