View source for Cirsium virginianum

{{Treatment/ID
|accepted_name=Cirsium virginianum
|accepted_authority=(Linnaeus) Michaux
|publications={{Treatment/Publication
|title=Fl. Bor.-Amer.
|place=2: 90. 1803
|year=1803
}}
|common_names=Virginia thistle
|basionyms={{Treatment/ID/Basionym
|name=Carduus virginianus
|authority=Linnaeus
|rank=species
|publication_title=Sp. Pl.
|publication_place=2: 824. 1753
}}
|synonyms={{Treatment/ID/Synonym
|name=Carduus revolutus
|authority=Small
|rank=species
}} {{Treatment/ID/Synonym
|name=Cirsium revolutum
|authority=(Small) Petrak
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Cardueae;Cirsium;Cirsium virginianum
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Cardueae]]</div><div class="higher-taxon"><small>genus</small>[[Cirsium]]</div><div class="higher-taxon"><small>species</small>[[Cirsium virginianum]]</div></div>
|volume=Volume 19
|mention_page=page 98
|treatment_page=page 118
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Biennials </b>or perennials, 60–150(–200) cm; crown sprouts from cluster of fibrous roots, these often tuberous-thickened. <b>Stems</b> usually single, erect, thinly appressed-tomentose, ± glabrate in age; branches 0–few in distal 1/3, ascending. <b>Leaves</b> very numerous, firm-textured, blades 3–15 cm, thick, ± rigid, linear or linear-elliptic, 0.5–2 cm wide and spinulose, or narrowly ovate, 2–4 cm wide, deeply lobed, lobes remote, spreading, separated by broad sinuses, few toothed or lobed, margins often revolute, main spines slender, 3–5(–9) mm, abaxial faces white-tomentose, adaxial green, glabrous or thinly tomentose; basal usually absent at flowering, winged-petiolate; proximal cauline usually absent at flowering, well separated, winged-petiolate; middle and distal numerous (30–70+), sessile, well distributed, gradually reduced distally, bases tapered, not decurrent; distal linear, entire or few lobed, ca. 1 cm. <b>Heads</b> 1–10+ in open, corymbiform or paniculiform arrays. <b>Peduncles</b> 10–15 cm (not overtopped by distal leaves). <b>Involucres</b> ovoid to cylindric or narrowly campanulate, 1.7–2.4 × 1–2 cm, glabrous or outer phyllaries very thinly tomentose. <b>Phyllaries</b> in 8–13 series, strongly imbricate, light green to brownish with dark apices, ovate (outer) to narrowly linear-elliptic (inner), abaxial faces with evident, narrow glutinous ridge; outer and middle appressed, bodies entire, apices erect or spreading, muticous to short-spinose, spines ascending to spreading, weak, 1–2 mm; apices of inner all straight and entire or innermost ± flexuous, erose. <b>Corollas</b> purple, 21–26 mm, tubes 8.5–11 mm, throats 6–8 mm (noticeably wider than tubes), lobes 4–8 mm; style tips 3.5–5 mm. <b>Cypselae</b> dark brown, 4–5 mm, apical collars yellowish, 0.5–1; pappi 17–20 mm. <b>2n</b> = 28.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer–fall (Aug–Oct).
|habitat=Moist savannas, pine barrens, coastal plain bogs
|elevation=0–150 m
|distribution=Del.;Fla.;Ga.;N.J.;N.C.;S.C.;Va.
|discussion=<p><i>Cirsium virginianum</i> occurs on the Atlantic coastal plain from Delaware to Florida.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Cirsium virginianum
|authority=(Linnaeus) Michaux
|rank=species
|parent rank=genus
|synonyms=Carduus revolutus;Cirsium revolutum
|basionyms=Carduus virginianus
|family=Asteraceae
|phenology=Flowering summer–fall (Aug–Oct).
|habitat=Moist savannas, pine barrens, coastal plain bogs
|elevation=0–150 m
|distribution=Del.;Fla.;Ga.;N.J.;N.C.;S.C.;Va.
|reference=None
|publication title=Fl. Bor.-Amer.
|publication year=1803
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V19_71.xml
|tribe=Asteraceae tribe Cardueae
|genus=Cirsium
|species=Cirsium virginianum
}}<!--

-->[[Category:Treatment]][[Category:Cirsium]]