View source for Panicum hirticaule

{{Treatment/ID
|accepted_name=Panicum hirticaule
|accepted_authority=J. Presl
|publications=
|common_names=Roughstalked wltchgrass
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Panicum pampinosum
|authority=unknown
}}
|hierarchy=Poaceae;Poaceae subfam. Panicoideae;Poaceae tribe Paniceae;Panicum;Panicum subg. Panicum;Panicum sect. Panicum;Panicum hirticaule
|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 hirticaule]]</div></div>
|volume=Volume 25
|mention_page=
|treatment_page=page 460
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>annual; glabrous or hispid, hairs papillose-based. <b>Culms</b> 11-110 cm, erect to decumbent; nodes shortly hirsute or glabrous. <b>Sheaths</b> shorter than the internodes, greenish to purplish, glabrous or with papillose-based hairs, ciliate on 1 margin, glabrous on the other; collars hirsute; ligules 1.5-3.5 mm, of hairs; blades 3-30 cm long, 3-30 mm wide, flat, usually hirsute or sparsely pubescent, hairs papillose-based, sometimes glabrous, bases rounded to cordate-clasping, margins ciliate, cilia papillose-based, apices acute. <b>Panicles</b> 9-30 cm long, 5-8 cm wide, erect or nodding, partially included to well-exserted, rachises glabrous or sparsely hispid basally; primary branches usually alternate to opposite, divergent, secondary branches and pedicels confined to the distal 2/3; pulvini inconspicuous; secondary branches appressed; pedicels 9-27 mm, appressed. <b>Spikelets</b> 1.9-4 mm long, 0.8-1 mm wide, ovoid to almost spherical, often reddish-brown, glabrous, veins prominent, scabridulous, apices abruptly acuminate. <b>Lower</b> glumes 1.3-2.4 mm, 1/2 - 3/4 as long as the spikelets, 3-5-veined; upper glumes 1.8-3.3 mm, 7-11-veined; lower florets sterile; lower lemmas similar to the upper glumes, 9-veined; lower paleas 0.4-0.9 mm; upper florets 1.5-2.4 mm long, 0.4-0.8 mm wide, ellipsoid, smooth or conspicuously papillate, shiny, stramineous, often with a lunate scar at the base.</span><!--

-->{{Treatment/Body
|distribution=Okla.;N.Mex.;Tex.;Nev.;Calif.;Wash.;Ariz.
|discussion=<p><i>Panicum hirticaule</i> grows in rocky or sandy soils in waste places, roadsides, ravines, and wet meadows along streams. Its range extends from southeastern California and southwestern Texas southward through Mexico, Central America, Cuba, and Hispaniola to western South America and Argentina.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Blades rounded at the base, 3-16 mm wide; lower paleas less than 1/2 as long as the upper florets; panicles erect
|[[Panicum hirticaule subsp. hirticaule|Panicum hirticaule subsp. hirticaule]]
|-id=key-0-1
|1
|Blades cordate, clasping at the base, 4-30 mm wide; lower paleas more than 1/2 as long as the upper florets; panicles often nodding.
|[[#key-0-2| > 2]]
|-id=key-0-2
|2
|Nodes, sheaths, and blades glabrous or sparsely pilose, hairs papillose-based; culms usually less than 70 cm tall; spikelets 3.2-4 mm long
|[[Panicum hirticaule subsp. stramineum|Panicum hirticaule subsp. stramineum]]
|-id=key-0-2
|2
|Nodes, sheaths, and blades hirsute, hairs papillose-based; culms robust, usually more than 70 cm tall; spikelets 3-3.3 mm long
|[[Panicum hirticaule subsp. sonorum|Panicum hirticaule subsp. sonorum]]
|}
</div></div><!--

-->{{#Taxon:
name=Panicum hirticaule
|author=
|authority=J. Presl
|rank=species
|parent rank=section
|synonyms=Panicum pampinosum
|basionyms=
|family=Poaceae
|distribution=Okla.;N.Mex.;Tex.;Nev.;Calif.;Wash.;Ariz.
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V25/V25_1239.xml
|subfamily=Poaceae subfam. Panicoideae
|tribe=Poaceae tribe Paniceae
|genus=Panicum
|subgenus=Panicum subg. Panicum
|section=Panicum sect. Panicum
|species=Panicum hirticaule
}}<!--

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