View source for Elymus tsukushiensis

{{Treatment/ID
|accepted_name=Elymus tsukushiensis
|accepted_authority=Honda
|publications=
|basionyms=
|synonyms=
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Triticeae;Elymus;Elymus tsukushiensis
|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 tsukushiensis]]</div></div>
|volume=Volume 24
|mention_page=
|treatment_page=page 336
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>loosely cespitose, without conspicuous rhizomes. <b>Culms</b> 25-100 cm tall, 1.3-3.5 mm thick, erect; nodes 4-6, glabrous. <b>Leaves</b> basal and cauline; sheaths glaucous, glabrous or with hairs, margins glabrous or ciliate distally; auricles 1-2 mm; ligules 0.2-0.7 mm, truncate; blades 3-10 mm wide, flattish, often glaucous. <b>Spikes</b> (6.5)10-25 cm long, 1.4-4 cm wide including the awns, 0.7-20 cm wide excluding the awns, flexuous, nodding; rachises densely to sparsely hirsute on the edges, hairs about 0.2 mm, glabrous elsewhere, glaucous; internodes (5)8-20 mm. <b>Spikelets</b> 15-25 mm, loosely appressed or ascending, with 5-10 florets; rachillas hairy, hairs about 0.1 mm; disarticulation above the glumes, beneath the florets. <b>Glumes</b> lanceolate, tapering from about midlength, adaxial surfaces glabrous, hyaline margins about 0.1 mm wide, strongly keeled distally, midvein scabrous distally, other veins smooth or scabrous, apices acute to acuminate, sometimes awned, awns 2-5 mm; lower glumes 4-7 mm, 3-5-veined; upper glumes 5-8 mm, 5-veined; calluses glabrous; lemmas 8-12 mm, lanceolate, glabrous or pilose, apices acute, awned, awns 20-40 mm, straight or flexuous; paleas from slightly shorter than to longer than the lemmas, keels narrowly winged distally, not or scarcely extending beyond the intercostal region, distinctly outwardly curved below the apices, apices 0.3-0.5 mm wide; anthers 1.5-2.5 mm. <b>2n</b> = 42.</span><!--

-->{{Treatment/Body
|discussion=<p><i>Elymus</i> tsuskushiensis is native to northeastern China, Japan, and Korea. It was collected from ballast dumps in Portland, Oregon, but is not established in the Flora region. Hitchcock (1951) identified it and <i>E. ciliaris</i> as <i>Agropyron</i> caninum (L.) P. Beauv. [= <i>Elymus caninus</i>, p. 322], but that species has flatter glumes that are longer in relation to the lemmas than those of E. tsuskushiensis, and paleas with straight or slightly outwardly curved keels.</p>
|tables=
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-->{{#Taxon:
name=Elymus tsukushiensis
|authority=Honda
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Poaceae
|illustrator=Cindy Roché;Annaliese Miller
|illustration copyright=Utah State University
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V24/V24_476.xml
|subfamily=Poaceae subfam. Pooideae
|tribe=Poaceae tribe Triticeae
|genus=Elymus
|species=Elymus tsukushiensis
}}<!--

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