View source for Eriochloa contracta

{{Treatment/ID
|accepted_name=Eriochloa contracta
|accepted_authority=Hitchc.
|publications=
|common_names=Prairie cupgrass
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms=
|hierarchy=Poaceae;Poaceae subfam. Panicoideae;Poaceae tribe Paniceae;Eriochloa;Eriochloa contracta
|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>[[Eriochloa]]</div><div class="higher-taxon"><small>species</small>[[Eriochloa contracta]]</div></div>
|volume=Volume 25
|mention_page=
|treatment_page=page 509
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>annual; cespitose. <b>Culms</b> 20-100 cm, erect or decumbent, sometimes rooting at the lower nodes; internodes pilose or pubescent; nodes pubescent to puberulent. <b>Sheaths</b> sparsely to densely pubescent; ligules 0.4-1.1 mm; blades 6-12(22) cm long, 2-8 mm wide, linear, flat to conduplicate, straight, appressed to divergent, both surfaces sparsely to densely pubescent with short, evenly spaced hairs. <b>Panicles</b> 6-20 cm long, 0.3-1.2 cm wide; rachises pilose, longer hairs 0.1-0.8 mm; branches 10-20(28), 15-45(60) mm long, 0.2-0.4 mm wide, appressed, pubescent to setose, not winged, with 8-16 mostly solitary spikelets, occasionally paired at the base of the branches; pedicels 0.2-1 mm, variously hirsute below, apices with fewer than 10 hairs more than 0.5 mm long. <b>Spikelets</b> (3.1)3.5-4.5(5) mm long, 1.2-1.7 mm wide, lanceolate. <b>Upper</b> glumes as long as the lower lemmas, with sparsely appressed pubescence on the lower 2/3, scabrous or glabrous distally, 3-9-veined, acuminate and awned, awns 0.4-1 mm; lower florets sterile; lower lemmas 3-4.3 mm long, 1.2-1.7 mm wide, lanceolate, setose, 3-7-veined, acuminate, unawned or mucronate; lower paleas absent; upper lemmas 2-2.5 mm, indurate, elliptic, 5-7-veined, acute to rounded and awned, awns 0.4-1.1 mm; upper paleas indurate, faintly rugose, blunt. <b>2n</b> = 36.</span><!--

-->{{Treatment/Body
|distribution=D.C.;Fla.;N.Mex.;Tex.;La.;Ala.;Ind.;Tenn.;Nev.;Va.;Colo.;Calif.;Ark.;Ill.;Ariz.;Ont.;Ohio;Utah;Mo.;Kans.;Minn.;Nebr.;Okla.;Miss.;S.C.;Ky.
|discussion=<p><i>Eriochloa contracta</i> grows in fields, ditches, and other disturbed areas. It is known only from the United States, being native and common in the central United States, and adventive to the east and southwest. It differs from <i>E. acuminata</i> in its tightly contracted, almost cylindrical panicles and longer lemma awns, but intermediate forms can be found. It can also be confused with first-year plants of the perennial <i>E. punctata</i>, which have glabrous leaves, narrower and more tapering spikelets, and longer lemma awns.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Eriochloa contracta
|authority=Hitchc.
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Poaceae
|illustrator=Linda A. Vorobik;Cindy Roché
|illustration copyright=Utah State University
|distribution=D.C.;Fla.;N.Mex.;Tex.;La.;Ala.;Ind.;Tenn.;Nev.;Va.;Colo.;Calif.;Ark.;Ill.;Ariz.;Ont.;Ohio;Utah;Mo.;Kans.;Minn.;Nebr.;Okla.;Miss.;S.C.;Ky.
|reference=None
|publication title=
|publication year=
|special status=Endemic
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V25/V25_1340.xml
|subfamily=Poaceae subfam. Panicoideae
|tribe=Poaceae tribe Paniceae
|genus=Eriochloa
|species=Eriochloa contracta
}}<!--

-->[[Category:Treatment]][[Category:Eriochloa]]