View source for Crepis capillaris

{{Treatment/ID
|accepted_name=Crepis capillaris
|accepted_authority=(Linnaeus) Wallroth
|publications={{Treatment/Publication
|title=Linnaea
|place=14: 657. 1840
|year=1840
}}
|common_names=Smooth hawksbeard;crépis capillaire
|basionyms={{Treatment/ID/Basionym
|name=Lapsana capillaris
|authority=Linnaeus
|rank=species
|publication_title=Sp. Pl.
|publication_place=2: 812. 1753
}}
|synonyms={{Treatment/ID/Synonym
|name=Crepis cooperi
|authority=A. Gray
|rank=species
}} {{Treatment/ID/Synonym
|name=Crepis virens
|authority=Linnaeus
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Cichorieae;Crepis;Crepis capillaris
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Asteraceae]]</div><div class="higher-taxon"><small>tribe</small>[[Asteraceae tribe Cichorieae]]</div><div class="higher-taxon"><small>genus</small>[[Crepis]]</div><div class="higher-taxon"><small>species</small>[[Crepis capillaris]]</div></div>
|volume=Volume 19
|mention_page=page 223, 232
|treatment_page=page 228
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals </b>or biennials, 10–90 cm (taproots shallow). <b>Stems</b> 1(–6+), erect to ± procumbent, usually simple (usually with single stout leader, sometimes multiple with slender laterals), hispid proximally or throughout. <b>Leaves</b>: basal and cauline; petiolate (petiole bases clasping); blades lanceolate or oblanceolate, runcinate or lyrate, 5–30 × 1–4.5 cm, margins pinnately divided to sharply dentate (lobes remote, unequal), apices obtuse or acute, mucronate, faces glabrous or sparsely hispid (hairs yellow; proximal cauline auriculate and clasping). <b>Heads</b> 10–15(–30+), in corymbiform arrays. <b>Calyculi</b> of 8, linear, tomentulose or stipitate-glandular bractlets 2–4 mm. <b>Involucres</b> cylindric to turbinate, 5–8 × 3–6 mm. <b>Phyllaries</b> 8–16, lanceolate, 6–7 mm (margins scarious), apices acute, abaxial faces stipitate-glandular and glandular setose (setae black, usually in 2 rows), adaxial glabrous. <b>Florets</b> 20–60; corollas deep yellow (reddish abaxially), 8–12 mm (hairy). <b>Cypselae</b> brownish yellow, fusiform, 1.5–2.5 mm, apices narrowed (not beaked), ribs 10 (glabrous or scabrous); pappi white (fluffy), 3–4 mm (scarcely surpassing phyllaries). <b>2n</b> = 6.</span><!--

-->{{Treatment/Body
|phenology=Flowering May–Nov.
|habitat=Meadows, pastures, lawns, roadsides, fields, waste places
|elevation=0–1300 m
|distribution=Alta.;B.C.;N.B.;N.S.;Ont.;Que.;Alaska;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Idaho;Ill.;Ind.;Iowa;Ky.;Maine;Md.;Mass.;Mich.;Miss.;Mo.;Mont.;Nev.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Oreg.;Pa.;R.I.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Europe.
|discussion=<p><i>Crepis capillaris</i> is recognized by its shallow root system, dense rosettes of coarsely dentate or pinnately lobed leaves, erect slender stems, auriculate-based cauline leaves, relatively small heads, phyllaries with double rows of black setae, and fluffy white pappi. It is weedy and can become a serious lawn pest. It is one of only three species of <i>Crepis</i> with 2n = 6; E. B. Babcock (1947) considered it to be advanced in the genus.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Crepis capillaris
|authority=(Linnaeus) Wallroth
|rank=species
|parent rank=genus
|synonyms=Crepis cooperi;Crepis virens
|basionyms=Lapsana capillaris
|family=Asteraceae
|phenology=Flowering May–Nov.
|habitat=Meadows, pastures, lawns, roadsides, fields, waste places
|elevation=0–1300 m
|distribution=Alta.;B.C.;N.B.;N.S.;Ont.;Que.;Alaska;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Idaho;Ill.;Ind.;Iowa;Ky.;Maine;Md.;Mass.;Mich.;Miss.;Mo.;Mont.;Nev.;N.H.;N.J.;N.Y.;N.C.;N.Dak.;Ohio;Oreg.;Pa.;R.I.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Europe.
|introduced=true
|reference=None
|publication title=Linnaea
|publication year=1840
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V19-20-21/V19_284.xml
|tribe=Asteraceae tribe Cichorieae
|genus=Crepis
|species=Crepis capillaris
}}<!--

-->[[Category:Treatment]][[Category:Crepis]]