View source for Elymus ×pinalenoensis

{{Treatment/ID
|accepted_name=Elymus ×pinalenoensis
|accepted_authority=(Pyrah) Barkworth & D.R. Dewey
|publications=
|basionyms=
|synonyms=
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Triticeae;Elymus;Elymus ×pinalenoensis
|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 ×pinalenoensis]]</div></div>
|volume=Volume 24
|mention_page=
|treatment_page=page 343
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>cespitose, not rhizomatous. <b>Culms</b> 60-90 cm tall, about 2 mm thick. <b>Leaves</b> somewhat basally concentrated; sheaths smooth or scabridulous; auricles to 1.5 mm; ligules 0.5-0.7 mm, rounded; blades 2-2.5 mm wide, those of the basal leaves 7-15 cm long, those of the flag leaves 2-7 cm long, abaxial surfaces smooth or scabridulous, glabrous or sparsely hairy basally, veins not evident, adaxial surfaces scabrous, sometimes with scattered hairs, veins prominently and equally ribbed. <b>Spikes</b> 8-14 cm long, about 5 cm wide including the awns, about 1 cm wide excluding the awns, nodding, lower nodes with 1-2 spikelets, upper nodes with 1 spikelet; internodes about 10 mm; disarticulation in the rachises and beneath each floret. <b>Glumes</b> 22-31 mm including the awns, glume bodies 5-10 mm, midvein evident, scabrous, awns 17-26 mm, divergent, scabrous; lemmas 11-13 mm, smooth, awns 20-40 mm, divergent, sometimes strongly divergent; anthers about 2 mm long, 1-1.5 mm thick.</span><!--

-->{{Treatment/Body
|discussion=<p>Elymus ×pinalenoensis consists of hybrids between E. elymoides subsp. brevifolius (p. 319) and E. arizonicus (p. 329) (Pyrah 1983). It has been found in the Pinaleno and Santa Catalina mountains of Graham County, Arizona, in areas disturbed by logging, road building, summer home development, and recreation.</p><!--
--><p>Elymus ×pinalenoensis is an Elymus named hybrid</p><!--
--><p>Elymus 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 Elymus, 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 Elymus that have disarticulating rachises presumably have E. elymoides or E. multisetus as one of their parents.</p>
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-->{{#Taxon:
name=Elymus ×pinalenoensis
|author=
|authority=(Pyrah) Barkworth & D.R. Dewey
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Poaceae
|illustrator=Cindy Roché and Annaliese Miller
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse_grained_fna_xml/V24/V24_486.xml
|subfamily=Poaceae subfam. Pooideae
|tribe=Poaceae tribe Triticeae
|genus=Elymus
|species=Elymus ×pinalenoensis
}}<!--

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