View source for Elymus canadensis var. robustus

{{Treatment/ID
|accepted_name=Elymus canadensis var. robustus
|accepted_authority=(Scribn. & J.G. Sm.) Mack. & Bush
|publications=
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Elymus robustus
|authority=
|rank=species
}}
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Triticeae;Elymus;Elymus canadensis;Elymus canadensis var. robustus
|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 Triticeae]]</div><div class="higher-taxon"><small>genus</small>[[Elymus]]</div><div class="higher-taxon"><small>species</small>[[Elymus canadensis]]</div><div class="higher-taxon"><small>variety</small>[[Elymus canadensis var. robustus]]</div></div>
|volume=Volume 24
|mention_page=
|treatment_page=page 305
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Spikes </b>15-25(30) cm, moderately nodding, occasionally almost erect, not strongly glaucous, often becoming yellowish or pale reddish brown; internodes 3-4 mm. <b>Glumes</b> often slightly indurate and bowed out at the base, awns 15-25 mm; lemmas smooth to scabridulous, or occasionally hirsute, awns 30-40 mm, moderately or often strongly outcurving.</span><!--

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|discussion=<p><i>Elymus canadensis </i>var.<i> robustus</i> occurs mostly in the east-central range of the species, from Illinois and Ohio to Oklahoma and Nebraska, locally becoming the most common variety. Anthesis can be earlier than in other sympatric <i>E. canadensis</i> varieties (Bush 1926). These rather heterogeneous plants tend to be large in most dimensions, and may have resulted from introgression with <i>E. virginicus</i> (p. 298) or <i>E. glabriflorus</i> (p. 296), with which they have often been confused (Davies 1980). Fj hybrids of the other varieties with these species are similar to <i></i>var.<i> robustus</i>, sometimes with erect spikes that are longer than those of either parent, but they are usually sterile. Spike pubescence may vary considerably, perhaps reflecting different hybrid origins.</p>
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-->{{#Taxon:
name=Elymus canadensis var. robustus
|authority=(Scribn. & J.G. Sm.) Mack. & Bush
|rank=variety
|parent rank=species
|synonyms=Elymus robustus
|basionyms=
|family=Poaceae
|illustrator=Cindy Roché;Annaliese Miller
|illustration copyright=Utah State University
|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/V24/V24_429.xml
|subfamily=Poaceae subfam. Pooideae
|tribe=Poaceae tribe Triticeae
|genus=Elymus
|species=Elymus canadensis
|variety=Elymus canadensis var. robustus
}}<!--

-->[[Category:Treatment]][[Category:Elymus canadensis]]