View source for Cirsium lecontei

{{Treatment/ID
|accepted_name=Cirsium lecontei
|accepted_authority=Torrey & A. Gray
|publications={{Treatment/Publication
|title=Fl. N. Amer.
|place=2: 458. 1843
|year=1843
}}
|common_names=Black or Le Conte’s thistle
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}{{Treatment/ID/Special_status
|code=C
|label=Conservation concern
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Carduus lecontei
|authority=(Torrey & A. Gray) Pollard
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Cardueae;Cirsium;Cirsium lecontei
|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 lecontei]]</div></div>
|volume=Volume 19
|mention_page=page 99
|treatment_page=page 114
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Perennials </b>but sometimes appearing biennial, 35–110 cm; taproots, sometimes with root sprouts. <b>Stems</b> 1–few, erect, distal 1/2 nearly naked, loosely arachnoid; branches 0–5(–10), stiffly ascending. <b>Leaves</b>: blades linear to oblong or narrowly elliptic, 15–25 × 1–4 cm, coarsely toothed to shallowly pinnatifid, lobes undivided or coarsely few-toothed, main spines 3–6 mm, abaxial faces often ± glabrate, loosely arachnoid when young, adaxial glabrous or sparingly villous with coarse, multicellular trichomes; basal sometimes absent at flowering, petiolate; principal cauline sessile, progressively reduced distally, bases clasping or ± decurrent; distal cauline few, widely separated, bractlike. <b>Heads</b> borne singly or less commonly 2–5(–10) in open, corymbiform arrays. <b>Peduncles</b> 5–30 cm (elevated above cauline leaves, not subtended by ring of involucre-like bracts). <b>Involucres</b> broadly cylindric to campanulate, 2.5–4 × 1.5–4 cm, loosely arachnoid, ± glabrate. <b>Phyllaries</b> in 6–10 series, imbricate, ovate or lanceolate (outer) to linear-lanceolate (inner), abaxial faces with prominent glutinous ridge, outer and middle tightly appressed, margins spinulose-serrulate, spines ascending, 0.5–2 mm; apices of inner flat, linear- acuminate. <b>Corollas</b> pink-purple, 22–45 mm, tubes 10–23 mm, throats 8–14 mm, lobes 7–10 mm; style tips 4–5 mm. <b>Cypselae</b> light brown, 5–5.75 mm, apical collars paler than body, ca. 0.75 mm; pappi 20–40 mm. <b>2n</b> = 28, 32.</span><!--

-->{{Treatment/Body
|phenology=Flowering spring–summer (May–Aug).
|habitat=Sandy pinelands of coastal plain, often in damp soil
|elevation=0–150 m
|distribution=Ala.;Fla.;La.;Miss.;N.C.;S.C.
|discussion=<p>Of conservation concern.</p><!--
--><p><i>Cirsium lecontei</i> occurs on the southern coastal plain. R. J. Moore and C. Frankton (1969) suggested that it originated as a derivative of ancient hybridization between the ancestors of <i>C. horridulum</i> and <i>C. nuttallii</i>. They further suggested a relationship between <i>C. lecontei</i> and <i>C. grahamii</i> of Arizona and hypothesized an ancient dispersal from the southeastern coastal plain to the western cordillera. Although such relationships are possible, I have seen little support for them in my examination of these taxa. I think it is more likely that <i>C. lecontei</i>, <i>C. horridulum</i>, and <i>C. nuttallii</i> originated from a common stock, and that the resemblances between <i>C. lecontei</i> and <i>C. grahamii</i> are a result of convergence.</p>
|tables=
|references=
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-->{{#Taxon:
name=Cirsium lecontei
|authority=Torrey & A. Gray
|rank=species
|parent rank=genus
|synonyms=Carduus lecontei
|basionyms=
|family=Asteraceae
|phenology=Flowering spring–summer (May–Aug).
|habitat=Sandy pinelands of coastal plain, often in damp soil
|elevation=0–150 m
|distribution=Ala.;Fla.;La.;Miss.;N.C.;S.C.
|reference=None
|publication title=Fl. N. Amer.
|publication year=1843
|special status=Endemic;Conservation concern
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V19_61.xml
|tribe=Asteraceae tribe Cardueae
|genus=Cirsium
|species=Cirsium lecontei
}}<!--

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