View source for Sphenopholis pensylvanica

{{Treatment/ID
|accepted_name=Sphenopholis pensylvanica
|accepted_authority=(L.) Hitchc.
|publications=
|common_names=Swamp oats
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Trisetum pensylvanicum
|authority=(L.) P. Beauv.
|rank=species
}}
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Poeae;Sphenopholis;Sphenopholis pensylvanica
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Pooideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Poeae]]</div><div class="higher-taxon"><small>genus</small>[[Sphenopholis]]</div><div class="higher-taxon"><small>species</small>[[Sphenopholis pensylvanica]]</div></div>
|volume=Volume 24
|mention_page=
|treatment_page=page 621
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Culms </b>30-120 cm, glabrous. <b>Sheaths</b> glabrous or pubescent; ligules 0.2-1 mm; blades 4-10(20) cm long, (1)2-8 mm wide, flat to slightly involute, smooth or scabridulous, sometimes pubescent. <b>Panicles</b> 7-35 cm long, 2-10 cm wide, erect to nodding, with relatively few, loosely arranged spikelets. <b>Spikelets</b> 4.5-9.5 mm. <b>Lower</b> glumes about 1/2 as wide as the upper glumes; upper glumes 3.6-6.2 mm, elliptical to oblanceolate, width/length ratio 0.15-0.28, apices acuminate to acute; lowest lemmas 3.5-6 mm, mostly smooth, apices scabridulous, unawned or awned, awns to 2.5 mm; distal lemmas scabrous, awned, awns 3-9 mm, slightly to evidently bent; anthers 0.5-1.8 mm. <b>2n</b> = 14.</span><!--

-->{{Treatment/Body
|distribution=Del.;W.Va.;Fla.;N.J.;Conn.;Mass.;R.I.;La.;Tenn.;N.C.;S.C.;Pa.;N.Y.;Va.;Ala.;Ga.;Md.;Ohio;Mo.;Miss.;Ky.
|discussion=<p><i>Sphenopholis pensylvanica</i> grows in springheads, seepage areas, swamps, marshes, and other moist to wet places, at 0-1100 m, in the eastern and southeastern United States. It hybridizes with <i>S. obtusata</i> (see below). The hybrids, which are called <i>Sphenopholis</i> xpallens (Biehler) Scribn., differ from <i>S. pensylvanica</i> in having generally shorter (3-5 mm) spikelets and shorter (0.1-4 mm), straight or bent awns on the distal lemmas. They differ from <i>S. obtusata</i> in having awns on the distal lemmas.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Sphenopholis pensylvanica
|authority=(L.) Hitchc.
|rank=species
|parent rank=genus
|synonyms=Trisetum pensylvanicum
|basionyms=
|family=Poaceae
|illustrator=Linda Ann Vorobik;Hana Pazdírková
|illustration copyright=Utah State University
|distribution=Del.;W.Va.;Fla.;N.J.;Conn.;Mass.;R.I.;La.;Tenn.;N.C.;S.C.;Pa.;N.Y.;Va.;Ala.;Ga.;Md.;Ohio;Mo.;Miss.;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/V24/V24_885.xml
|subfamily=Poaceae subfam. Pooideae
|tribe=Poaceae tribe Poeae
|genus=Sphenopholis
|species=Sphenopholis pensylvanica
}}<!--

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