View source for Elymus ×yukonensis

{{Treatment/ID
|accepted_name=Elymus ×yukonensis
|accepted_authority=(Scribn. & Merr.) Á. Löve
|publications=
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Agropyron yukonense
|authority=Scribn. & Merr.
|rank=species
}}
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Triticeae;Elymus;Elymus ×yukonensis
|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 ×yukonensis]]</div></div>
|volume=Volume 24
|mention_page=
|treatment_page=page 340
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>rhizomatous. <b>Culms</b> about 60 cm, erect. <b>Leaves</b> somewhat basally concentrated; blades 3.5-6 mm wide. <b>Spikes</b> 6-10 cm long, 0.7-1.7 cm wide, with 1 spikelet per node; internodes 6-11 mm. <b>Glumes</b> 4-5.5 mm, about 1/2 the length of the adjacent lemmas, lanceolate, flat, hairy, apices acute or awn-tipped, awns shorter than 1 mm; rachillas densely hairy; lemmas 6-9 mm, densely villous, unawned; anthers 3.3-3.6 mm.</span><!--

-->{{Treatment/Body
|distribution=Alaska;B.C.
|discussion=<p>The parents of <i>Elymus ×yukonensis</i> have not been identified. Morphological and geographic considerations suggest that they may be <i>E. lanceolatus </i>subsp.<i> psammophilus</i> (p. 327) and <i>E. alaskanus</i> (p. 326).</p><!--
--><p><i>Elymus ×yukonensis</i> is an <i>Elymus</i> named hybrid</p><!--
--><p><i>Elymus</i> is notorious for its ability to hybridize. Most of its interspecific hybrids are partially fertile, permitting introgression between the parents. The descriptions provided below are restricted to the named interspecific hybrids. They should be treated with caution and some skepticism; some are based solely on the type specimen, because little other reliably identified material was available. Moreover, as the descriptions of the non-hybrid species indicate, many other interspecific hybrids exist.</p><!--
--><p>The parentage of all hybrids is best determined in the field. Perennial hybrids, such as those in <i>Elymus</i>, can persist in an area after one or both parents have died out, but the simplest assumption is that both are present. Interspecific hybrids of <i>Elymus</i> that have disarticulating rachises presumably have <i>E. elymoides</i> or <i>E. multisetus</i> as one of their parents.</p>
|tables=
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-->{{#Taxon:
name=Elymus ×yukonensis
|authority=(Scribn. & Merr.) Á. Löve
|rank=species
|parent rank=genus
|synonyms=Agropyron yukonense
|basionyms=
|family=Poaceae
|illustrator=Cindy Roché;Annaliese Miller
|illustration copyright=Utah State University
|distribution=Alaska;B.C.
|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_483.xml
|subfamily=Poaceae subfam. Pooideae
|tribe=Poaceae tribe Triticeae
|genus=Elymus
|species=Elymus ×yukonensis
}}<!--

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