View source for Achnatherum occidentale subsp. pubescens

{{Treatment/ID
|accepted_name=Achnatherum occidentale subsp. pubescens
|accepted_authority=(Vasey) Barkworth
|publications=
|common_names=Common western needlegrass
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Stipa occidentalis var. pubescens
|authority=
|rank=variety
}} {{Treatment/ID/Synonym
|name=Stipa lemmonii var. pubescens
|authority=
|rank=variety
}} {{Treatment/ID/Synonym
|name=Stipa elmeri
|authority=
|rank=species
}}
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Stipeae;Achnatherum;Achnatherum occidentale;Achnatherum occidentale subsp. pubescens
|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 Stipeae]]</div><div class="higher-taxon"><small>genus</small>[[Achnatherum]]</div><div class="higher-taxon"><small>species</small>[[Achnatherum occidentale]]</div><div class="higher-taxon"><small>subspecies</small>[[Achnatherum occidentale subsp. pubescens]]</div></div>
|volume=Volume 24
|mention_page=
|treatment_page=page 123
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Culms </b>32-120 cm tall, 0.8-1.3(2) mm thick, basal internodes puberulent to pubescent. <b>Basal</b> sheaths usually pubescent, sometimes densely pubescent, occasionally glabrous; collars often with tufts of hair at the sides; blades 1-3 mm wide, adaxial surfaces pubescent to pilose. <b>Panicles</b> 10-30 cm; longest branches 2-7 cm. <b>Glumes</b> usually green; lemmas with apical pubescence similar in length to the basal awn pubescence; awns 24-50 mm, pilose on the first 2 segments, with hairs gradually becoming shorter distally, terminal segment scabrous or glabrous. <b>2n</b> = 36.</span><!--

-->{{Treatment/Body
|discussion=<p><i>Achnatherum occidentale </i>subsp.<i> pubescens</i> grows from Washington to California and eastward to Wyoming, at 1300-4700 m. It is the most widespread and variable subspecies of <i>A. occidentale</i>, intergrading with <i></i>subsp.<i> californicum</i>, <i>A. nelsonii</i>, and <i>A. lettermanii</i>. It differs from the latter two in its shorter paleas and its pilose awns.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Achnatherum occidentale subsp. pubescens
|authority=(Vasey) Barkworth
|rank=subspecies
|parent rank=species
|synonyms=Stipa occidentalis var. pubescens;Stipa lemmonii var. pubescens;Stipa elmeri
|basionyms=
|family=Poaceae
|illustrator=Cindy Roché
|illustration copyright=Utah State University
|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_171.xml
|subfamily=Poaceae subfam. Pooideae
|tribe=Poaceae tribe Stipeae
|genus=Achnatherum
|species=Achnatherum occidentale
|subspecies=Achnatherum occidentale subsp. pubescens
}}<!--

-->[[Category:Treatment]][[Category:Achnatherum occidentale]]