View source for Trisetum cernuum

{{Treatment/ID
|accepted_name=Trisetum cernuum
|accepted_authority=Trin.
|publications=
|common_names=Nodding trisetum
|special_status={{Treatment/ID/Special_status
|code=E
|label=Endemic
}}
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Trisetum nutkanense
|authority=
|rank=species
}}
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Poeae;Trisetum;Trisetum cernuum
|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>[[Trisetum]]</div><div class="higher-taxon"><small>species</small>[[Trisetum cernuum]]</div></div>
|volume=Volume 24
|mention_page=
|treatment_page=page 748
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>perennial, with both fertile and sterile shoots; cespitose, not rhizomatous. <b>Culms</b> (30)50-110 cm, clumped, erect, glabrous or pubescent. <b>Leaves</b> 2-3 per culm; sheaths scabridulous or pilose; ligules 1.5-3 mm, truncate, erose to lacerate; blades (8.5)15-20+ cm long, (3)7-12 mm wide, flat, ascending, lax at maturity, often scabridulous. <b>Panicles</b> 10-30 cm long, (1)2-9 cm wide, open, nodding, green or tan, occasionally purple-tinged; branches 2-12+ cm, most, except sometimes the uppermost, spikelet-bearing only towards the apices, with the basal (1/5)1/3-1/2 bare, filiform, flexuous, at least the lowest 1-3 whorls spreading or drooping. <b>Spikelets</b> 6-12 mm, subsessile to pedicellate, pedicels to 2 cm, usually with 2-3 functional florets below 1-2 reduced florets; rachilla internodes and hairs 1-2.5 mm; disarticulation above the glumes, beneath the florets. <b>Glumes</b> unequal; lower glumes 0.75-2(3) mm, subulate; upper glumes 3.5-5 mm long, shorter than the lowest florets, 2-3 times as wide as the lower glumes, widest at or above the middle, ovate or obovate, rounded to the acuminate apices; callus hairs to 1 mm; lemmas 5-6 mm, broadly lanceolate, glabrous, bifid, teeth to 1.3 mm, awned, awns (7)9-14 mm, arising from above midlength to just below the teeth, exceeding the lemma apices, arcuate to flexuous; paleas shorter than the lemmas; anthers about 1 mm. <b>Caryopses</b> 2.5-3.2 mm, densely to sparsely pubescent. <b>2n</b> = 42.</span><!--

-->{{Treatment/Body
|discussion=<p><i>Trisetum cernuum</i> grows in moist woods, on stream banks, lake and pond shores, and floodplains of the western Flora region. The hairiness of the leaf sheaths varies, often within a plant.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Trisetum cernuum
|authority=Trin.
|rank=species
|parent rank=genus
|synonyms=Trisetum nutkanense
|basionyms=
|family=Poaceae
|illustrator=Cindy Roché
|illustration copyright=Utah State University
|reference=None
|publication title=
|publication year=
|special status=Endemic
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/bb6b7e3a7de7d3b7888a1ad48c7fd8f5c722d8d6/coarse_grained_fna_xml/V24/V24_1060.xml
|subfamily=Poaceae subfam. Pooideae
|tribe=Poaceae tribe Poeae
|genus=Trisetum
|species=Trisetum cernuum
}}<!--

-->[[Category:Treatment]][[Category:Trisetum]]