View source for Bouteloua aristidoides

{{Treatment/ID
|accepted_name=Bouteloua aristidoides
|accepted_authority=(Kunth) Griseb.
|publications=
|basionyms=
|synonyms=
|hierarchy=Poaceae;Poaceae subfam. Chloridoideae;Poaceae tribe Cynodonteae;Bouteloua;Bouteloua subg. Bouteloua;Bouteloua aristidoides
|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>[[Bouteloua]]</div><div class="higher-taxon"><small>subgenus</small>[[Bouteloua subg. Bouteloua]]</div><div class="higher-taxon"><small>species</small>[[Bouteloua aristidoides]]</div></div>
|volume=Volume 25
|mention_page=
|treatment_page=page 255
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>annual; tufted. <b>Culms</b> 4-60 cm, outer culms of a tuft decumbent, sometimes geniculate, branched at the lower nodes. <b>Ligules</b> 0.2-0.5 mm, membranous, lacerate or ciliate; blades 2-5(9) cm long, 0.7-2 mm wide, flat or folded, adaxial surfaces sometimes with papillose-based hairs, margins usually with papillose-based hairs near the ligules. <b>Panicles</b> 2.5-10.5 cm, with (1)4-15 branches; branches 5-45 mm, deciduous, densely pubescent (at least basally), with 2-10 spikelets per branch, axes extending 2-10 mm beyond the base of the terminal spikelets, apices entire; disarticulation at the base of the branches, the break forming a sharp tip. <b>Spikelets</b> appressed. <b>Proximal</b> spikelet on each branch with 1 floret; lower glumes 1.5-3.5 mm, glabrous, narrow to subulate; upper glumes 5.5-6.2 mm, densely pubescent, at least on the basal 1/2; lemmas 5.8-6 mm, acuminate, unawned; lowest paleas almost as long as the lemmas, bifid, glabrous; rachillas prolonged beyond the florets for about 0.5 mm. <b>Distal</b> spikelets with 1 bisexual and 1 rudimentary floret, glumes unequal, glabrous, minutely scabrous on the keels; narrowly acute or acuminate; lower glumes 1.5-2 mm; upper glumes 5-6 mm, glabrous or sparsely pubescent basally, often divergent; lowest lemmas 6-8 mm, veins pubescent, lateral veins excurrent as short (to 1 mm) awns, acuminate, midvein extended into a setaceous tip or a short awn; lowest paleas 5-7 mm, bifid, veins often excurrent as short awns; anthers about 2.5 mm, yellow or yellow and red; distal florets reduced to a pubescent, 3-awned, awn column, awns 2-7 mm, exserted. <b>Caryopses</b> 2.5-3 mm. <b>2n</b> = 40.</span><!--

-->{{Treatment/Body
|distribution=Md.;N.Mex.;Tex.;Utah;Calif.;Ariz.;Nev.
|discussion=<p>There are two varieties, both of which grow in the Flora region.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Panicle branches with 2-5 spikelets, usually 5-16 mm to the base of the terminal spikelets, axes usually extending an additional 6-10 mm
|[[Bouteloua aristidoides var. aristidoides|Bouteloua aristidoides var. aristidoides]]
|-id=key-0-1
|1
|Panicle branches with 6-10 spikelets, usually 15-35 mm to the base of the terminal spikelets, axes extending an additional 2-5(7) mm
|[[Bouteloua aristidoides var. arizonica|Bouteloua aristidoides var. arizonica]]
|}
</div></div><!--

-->{{#Taxon:
name=Bouteloua aristidoides
|authority=(Kunth) Griseb.
|rank=species
|parent rank=subgenus
|synonyms=
|basionyms=
|family=Poaceae
|illustrator=Linda A. Vorobik;Cindy Roché
|illustration copyright=Utah State University
|distribution=Md.;N.Mex.;Tex.;Utah;Calif.;Ariz.;Nev.
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V25/V25_873.xml
|subfamily=Poaceae subfam. Chloridoideae
|tribe=Poaceae tribe Cynodonteae
|genus=Bouteloua
|subgenus=Bouteloua subg. Bouteloua
|species=Bouteloua aristidoides
}}<!--

-->[[Category:Treatment]][[Category:Bouteloua subg. Bouteloua]]