View source for Panicum capillare

{{Treatment/ID
|accepted_name=Panicum capillare
|accepted_authority=L.
|publications=
|common_names=Witchgrass;Panic capillaire
|basionyms=
|synonyms=
|hierarchy=Poaceae;Poaceae subfam. Panicoideae;Poaceae tribe Paniceae;Panicum;Panicum subg. Panicum;Panicum sect. Panicum;Panicum capillare
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Panicoideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Paniceae]]</div><div class="higher-taxon"><small>genus</small>[[Panicum]]</div><div class="higher-taxon"><small>subgenus</small>[[Panicum subg. Panicum]]</div><div class="higher-taxon"><small>section</small>[[Panicum sect. Panicum]]</div><div class="higher-taxon"><small>species</small>[[Panicum capillare]]</div></div>
|volume=Volume 25
|mention_page=
|treatment_page=
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>annual; hirsute or hispid, hairs papillose-based, often bluish or purplish. <b>Culms</b> 15-130 cm, slender to stout, not woody, erect to decumbent, straight to zigzag, simple to profusely branched; nodes sparsely to densely pilose. <b>Sheaths</b> rounded, hirsute or hispid, hairs papillose-based; ligules membranous, ciliate, cilia 0.5-1.5 mm; blades 5-40 cm long, 3-18 mm wide, linear, spreading. <b>Panicles</b> 13-50 cm long, 7-24 cm wide, usually more than 1/2 as long as the plants, included at the base or exserted at maturity, disarticulating at the base of the peduncles at maturity and becoming a tumbleweed; branches spreading; pedicels 0.5-2.8 mm, scabrous, pilose. <b>Spikelets</b> 1.9-4 mm, ellipsoid to lanceoloid, often red-purple, glabrous. <b>Lower</b> florets sterile; lower glumes 1/3– 1/2 as long as the spikelets, 1-3-veined; upper glumes 1.8-3.1 mm, 7-9-veined, midveins scabridulous; lower lemmas 1.9-3 mm, extending 0.4-1.1 mm beyond the upper florets, often stiff, straight, prominently veined distally; upper florets stramineous or nigrescent, sometimes with a prominent lunate scar at the base, often disarticulating before the glumes, leaving the empty glumes and lower lemmas temporarily persisting on the panicles. <b>2n</b> = 18.</span><!--

-->{{Treatment/Body
|distribution=Conn.;N.J.;N.Y.;Wash.;Del.;Wis.;W.Va.;D.C.;Alta.;B.C.;Man.;N.B.;N.S.;Ont.;P.E.I.;Que.;Sask.;Fla.;Wyo.;N.H.;N.Mex.;Tex.;La.;Tenn.;N.C.;S.C.;Pa.;Nev.;Mass.;Maine;R.I.;Vt.;Va.;Colo.;Virgin Islands;Calif.;Ala.;Kans.;N.Dak.;Nebr.;Okla.;S.Dak.;Ark.;Ill.;Ga.;Ind.;Iowa;Ariz.;Idaho;Md.;Ohio;Utah;Mo.;Minn.;Mich.;Mont.;Miss.;Ky.;Oreg.
|discussion=<p><i>Panicum capillare</i> grows in open areas, particularly in disturbed sites such as fields, pastures, roadsides, waste places, ditches, sand, and rock crevices, etc. It grows throughout temperate North America, including northern Mexico. It also grows in Bermuda, the Virgin Islands, and sporadically in South America, and has become naturalized in much of Europe and Asia. It appears to hybridize with <i>P. philadelphicum</i>.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Upper florets without a lunate scar, usually stramineous; lower paleas absent; pedicels and secondary branches strongly divergent
|[[Panicum capillare subsp. capillare|Panicum capillare subsp. capillare]]
|-id=key-0-1
|1
|Upper florets with a lunate scar at the base, usually nigrescent; lower paleas present; pedicels and secondary branches often appressed, varying to narrowly divergent
|[[Panicum capillare subsp. hillmanii|Panicum capillare subsp. hillmanii]]
|}
</div></div><!--

-->{{#Taxon:
name=Panicum capillare
|authority=L.
|rank=species
|parent rank=section
|synonyms=
|basionyms=
|family=Poaceae
|illustrator=Linda A. Vorobik;Cindy Roché
|illustration copyright=Utah State University
|distribution=Conn.;N.J.;N.Y.;Wash.;Del.;Wis.;W.Va.;D.C.;Alta.;B.C.;Man.;N.B.;N.S.;Ont.;P.E.I.;Que.;Sask.;Fla.;Wyo.;N.H.;N.Mex.;Tex.;La.;Tenn.;N.C.;S.C.;Pa.;Nev.;Mass.;Maine;R.I.;Vt.;Va.;Colo.;Virgin Islands;Calif.;Ala.;Kans.;N.Dak.;Nebr.;Okla.;S.Dak.;Ark.;Ill.;Ga.;Ind.;Iowa;Ariz.;Idaho;Md.;Ohio;Utah;Mo.;Minn.;Mich.;Mont.;Miss.;Ky.;Oreg.
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V25/V25_1229.xml
|subfamily=Poaceae subfam. Panicoideae
|tribe=Poaceae tribe Paniceae
|genus=Panicum
|subgenus=Panicum subg. Panicum
|section=Panicum sect. Panicum
|species=Panicum capillare
}}<!--

-->[[Category:Treatment]][[Category:Panicum sect. Panicum]]