View source for Cirsium nuttallii

{{Treatment/ID
|accepted_name=Cirsium nuttallii
|accepted_authority=de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
|publications={{Treatment/Publication
|title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.
|place=6: 651. 1838
|year=1838
}}
|common_names=Nuttall’s thistle
|basionyms={{Treatment/ID/Synonym
|name=Carduus glaber
|authority=Nuttall
}}
|synonyms={{Treatment/ID/Synonym
|name=Carduus nuttallii
|authority=(de Candolle) Pollard
}}
|hierarchy=Asteraceae;Asteraceae tribe Cardueae;Cirsium;Cirsium nuttallii
|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 nuttallii]]</div></div>
|volume=Volume 19
|mention_page=page 98, 114
|treatment_page=page 119
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Biennials,</b> 20–350 cm; taprooted. <b>Stems</b> usually single, erect, glabrous or villous with septate trichomes; branches few–many, ascending. <b>Leaves</b>: blades narrowly to broadly elliptic, (10–)15–60 × (2–)5–15 cm, thin, ± flexible, deeply pinnatifid, lobes narrow, spreading, coarsely dentate or lobed, main spines 2–5 mm, abaxial faces thinly tomentose but often wholly glabrate in age, adaxial glabrous or sparsely villous with septate trichomes; basal often absent at flowering, petioles slender, winged, bases tapered; principal cauline becoming sessile and gradually reduced distally, bases spiny-lobed, sometimes decurrent; distal reduced to linear bracts. <b>Heads</b> few–many, in open corymbiform or paniculiform arrays. <b>Peduncles</b> 1–15 cm, essentially naked (not overtopped by crowded distal leaves). <b>Involucres</b> hemispheric to campanulate, 1.5–2.5 × 1–2.5 cm, thinly arachnoid or glabrate. <b>Phyllaries</b> in 6–10 series, strongly imbricate, green or brownish, ovate or elliptic (outer) to linear-lanceolate (inner), abaxial faces with narrow glutinous ridge; outer and middle appressed, bodies entire, spines abruptly spreading, slender, 1–2(–3) mm; apices of inner often flexuous, flat, attenuate. <b>Corollas</b> white to pink, lavender, or purple, 17–25 mm, tubes 5–11 mm, throats 4–7 mm (noticeably wider than tubes), lobes 5–7 mm; style tips 3–4.5 mm. <b>Cypselae</b> dark brown, 3–4 mm, apical collars stramineous, 0.5 mm; pappi 17–21 mm (longer bristles shorter than corollas). <b>2n</b> = 24, 26, 28.</span><!--

-->{{Treatment/Body
|phenology=Flowering summer (Jun–Aug).
|habitat=Roadsides, ditches, woodlands, usually in damp soil
|elevation=0–100 m
|distribution=Ala.;Fla.;Ga.;La.;Miss.;N.C.;S.C.;Tex.;Va.
|discussion=<p><i>Cirsium nuttallii</i> occurs on the southern coastal plain from southeastern Virginia to southern Florida and west to eastern Louisiana.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Cirsium nuttallii
|author=
|authority=de Candolle in A. P. de Candolle and A. L. P. P. de Candolle
|rank=species
|parent rank=genus
|synonyms=Carduus nuttallii
|basionyms=Carduus glaber
|family=Asteraceae
|phenology=Flowering summer (Jun–Aug).
|habitat=Roadsides, ditches, woodlands, usually in damp soil
|elevation=0–100 m
|distribution=Ala.;Fla.;Ga.;La.;Miss.;N.C.;S.C.;Tex.;Va.
|reference=None
|publication title=in A. P. de Candolle and A. L. P. P. de Candolle, Prodr.
|publication year=1838
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/8f726806613d60c220dc4493de13607dd3150896/coarse_grained_fna_xml/V19-20-21/V19_72.xml
|tribe=Asteraceae tribe Cardueae
|genus=Cirsium
|species=Cirsium nuttallii
}}<!--

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