View source for Muhlenbergia richardsonis

{{Treatment/ID
|accepted_name=Muhlenbergia richardsonis
|accepted_authority=(Trin.) Rydb.
|publications=
|common_names=Mat muhly;Muhlenbergie de richardson
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Sporobolus depauperatus
|authority=
|rank=species
}} {{Treatment/ID/Synonym
|name=Muhlenbergia squarrosa
|authority=
|rank=species
}}
|hierarchy=Poaceae;Poaceae subfam. Chloridoideae;Poaceae tribe Cynodonteae;Muhlenbergia;Muhlenbergia richardsonis
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Chloridoideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Cynodonteae]]</div><div class="higher-taxon"><small>genus</small>[[Muhlenbergia]]</div><div class="higher-taxon"><small>species</small>[[Muhlenbergia richardsonis]]</div></div>
|volume=Volume 25
|mention_page=
|treatment_page=page 177
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial; rhizomatous, not cespitose, often mat-forming. <b>Culms</b> 5-30 cm tall, 0.4-1 mm thick, decumbent, geniculate, or erect; internodes usually nodulose (occasionally smooth) for most of their length, puberulent or nodulose below the nodes. <b>Sheaths</b> shorter or longer than the internodes, glabrous; ligules 0.8-3 mm, membranous, acute to truncate, erose; blades 0.4-6.5 cm long, 0.5-4.2 mm wide, flat or involute, straight or arcuate-spreading, glabrous abaxially, hirtellous adaxially. <b>Panicles</b> 1-15 cm long, 0.1-1.7 cm wide, exserted, narrow or spikelike, rachises usually concealed by the branches; primary branches 0.4-5 cm, usually closely appressed at maturity, rarely diverging up to 20° from the rachises; pedicels 0.2-2 mm, setulose. <b>Spikelets</b> 1.7-3.1 mm, occasionally with 2 florets. <b>Glumes</b> subequal, 0.6-2 mm, 1/3– 1/2 as long as the lemmas, green, 1(2)-veined, acute, sometimes mucronate, mucros less than 0.2 mm; lemmas 1.7-2.6(3.1) mm, lanceolate, dark greenish, plumbeous, or mottled, glabrous, apices scabridulous, acute to acuminate, sometimes mucronate, mucros to 0.5 mm; paleas 1.2-2.4(2.9) mm, lanceolate, acute; anthers 0.9-1.6 mm, yellow to purplish. <b>Caryopses</b> 0.9-1.6 mm, narrowly ellipsoid, brown. <b>2n</b> = 40.</span><!--

-->{{Treatment/Body
|distribution=Maine;Oreg.;Colo.;N.Mex.;Wash.;Wyo.;Utah;Alaska;Minn.;Mich.;Wis.;Idaho;Mont.;Nev.;Ariz.;Calif.;N.Dak.;Nebr.;S.Dak.;Alta.;B.C.;Man.;N.B.;N.W.T.;Ont.;Que.;Sask.;Yukon
|discussion=<p><i>Muhlenbergia richardsonis</i> grows in open sites in alkaline meadows, prairies, sandy arroyo bottoms, talus slopes, rocky flats and the shores of rivers, at elevations of 60-3300 m. It is the most widespread species of <i>Muhlenbergia</i> in the Flora region, extending from the Yukon Territory to Quebec in the north and to northern Baja California, Mexico, in the south. Morden and Hatch (1996) reported that it also grows in Alaska, but no voucher specimen has been located.</p><!--
--><p><i>Muhlenbergia richardsonis</i> is often confused with <i>M. cuspidata</i>, which differs in lacking rhizomes and having shorter ligules, and sometimes with <i>M. filiformis</i>, which differs in being a weak annual with glabrous internodes and obtuse, erose glumes.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Muhlenbergia richardsonis
|authority=(Trin.) Rydb.
|rank=species
|parent rank=genus
|synonyms=Sporobolus depauperatus;Muhlenbergia squarrosa
|basionyms=
|family=Poaceae
|illustrator=Linda A. Vorobik;Annaliese Miller
|illustration copyright=Utah State University
|distribution=Maine;Oreg.;Colo.;N.Mex.;Wash.;Wyo.;Utah;Alaska;Minn.;Mich.;Wis.;Idaho;Mont.;Nev.;Ariz.;Calif.;N.Dak.;Nebr.;S.Dak.;Alta.;B.C.;Man.;N.B.;N.W.T.;Ont.;Que.;Sask.;Yukon
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V25/V25_750.xml
|subfamily=Poaceae subfam. Chloridoideae
|tribe=Poaceae tribe Cynodonteae
|genus=Muhlenbergia
|species=Muhlenbergia richardsonis
}}<!--

-->[[Category:Treatment]][[Category:Muhlenbergia]]