View source for Centaurea cyanus

{{Treatment/ID
|accepted_name=Centaurea cyanus
|accepted_authority=Linnaeus
|publications={{Treatment/Publication
|title=Sp. Pl.
|place=2: 911. 1753
|year=1753
}}
|common_names=Bachelor’s-button;garden cornflower;cornflower;bluebottle;bluebonnets;blaver;blue-poppy;thimbles;brushes;corn pinks;witch’s bells;hurtsickle;bleuet;barbeau;casse lunette
|special_status={{Treatment/ID/Special_status
|code=I
|label=Introduced
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Leucacantha cyanus
|authority=(Linnaeus) Nieuwland & Lunell
|rank=species
}}
|hierarchy=Asteraceae;Asteraceae tribe Cardueae;Centaurea;Centaurea cyanus
|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>[[Centaurea]]</div><div class="higher-taxon"><small>species</small>[[Centaurea cyanus]]</div></div>
|volume=Volume 19
|mention_page=page 183
|treatment_page=page 184
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Annuals,</b> 20–100 cm. <b>Stems</b> usually 1, erect, ± openly branched distally, loosely tomentose. <b>Leaves</b> ± loosely gray-tomentose; basal leaf blades linear-lanceolate, 3–10 cm, margins entire or with remote linear lobes, apices acute; cauline linear, usually not much smaller except among heads, usually entire. <b>Heads</b> radiant, in open, rounded or ± flat-topped cymiform arrays, pedunculate. <b>Involucres</b> campanulate, 12–16 mm. <b>Phyllaries</b>: bodies green, ovate (outer) to oblong (inner), tomentose or becoming glabrous, margins and erect appendages white to dark brown or black, scarious, fringed with slender teeth ± 1 mm. <b>Florets</b> 25–35; corollas blue (white to purple), those of sterile florets raylike, enlarged, 20–25 mm, those of fertile florets 10–15 mm. <b>Cypselae</b> stramineous or pale blue, 4–5 mm, finely hairy; pappi of many unequal stiff bristles, 2–4 mm. <b>2n</b> = 24 (Russia).</span><!--

-->{{Treatment/Body
|phenology=Flowering spring–summer (May–Sep).
|habitat=Grasslands, woodlands, forests, roadsides, other disturbed sites
|elevation=50–2400 m
|distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.S.;Ont.;P.E.I.;Que.;Yukon;Ala.;Alaska;Ariz.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Fla.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;s Europe.
|introduced=true
|discussion=<p><i>Centaurea cyanus</i> is a commonly cultivated garden ornamental. Its cypselae are often included in wildflower seed mixes and it naturalizes readily in many areas.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Centaurea cyanus
|authority=Linnaeus
|rank=species
|parent rank=genus
|synonyms=Leucacantha cyanus
|basionyms=
|family=Asteraceae
|phenology=Flowering spring–summer (May–Sep).
|habitat=Grasslands, woodlands, forests, roadsides, other disturbed sites
|elevation=50–2400 m
|distribution=Greenland;Alta.;B.C.;Man.;N.B.;Nfld. and Labr. (Nfld.);N.S.;Ont.;P.E.I.;Que.;Yukon;Ala.;Alaska;Ariz.;Ark.;Calif.;Colo.;Conn.;Del.;D.C.;Fla.;Ga.;Idaho;Ill.;Ind.;Iowa;Kans.;Ky.;La.;Maine;Md.;Mass.;Mich.;Minn.;Miss.;Mo.;Mont.;Nebr.;Nev.;N.H.;N.J.;N.Mex.;N.Y.;N.C.;N.Dak.;Ohio;Okla.;Oreg.;Pa.;R.I.;S.C.;S.Dak.;Tenn.;Tex.;Utah;Vt.;Va.;Wash.;W.Va.;Wis.;Wyo.;s Europe.
|introduced=true
|reference=None
|publication title=Sp. Pl.
|publication year=1753
|special status=Introduced
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V19-20-21/V19_206.xml
|tribe=Asteraceae tribe Cardueae
|genus=Centaurea
|species=Centaurea cyanus
}}<!--

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