Difference between revisions of "Leymus ×vancouverensis"
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|synonyms={{Treatment/ID/Synonym | |synonyms={{Treatment/ID/Synonym | ||
|name=Elymus ×vancouverensis | |name=Elymus ×vancouverensis | ||
| − | |authority= | + | |authority= |
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Triticeae;Leymus;Leymus ×vancouverensis | |hierarchy=Poaceae;Poaceae subfam. Pooideae;Poaceae tribe Triticeae;Leymus;Leymus ×vancouverensis | ||
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name=Leymus ×vancouverensis | name=Leymus ×vancouverensis | ||
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|authority=(Vasey) Pilg. | |authority=(Vasey) Pilg. | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| + | |illustrator=Cindy Roché | ||
| + | |illustration copyright=Utah State University | ||
|distribution=Calif.;Oreg.;Wash.;B.C. | |distribution=Calif.;Oreg.;Wash.;B.C. | ||
|reference=None | |reference=None | ||
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| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V24/V24_511.xml |
|subfamily=Poaceae subfam. Pooideae | |subfamily=Poaceae subfam. Pooideae | ||
|tribe=Poaceae tribe Triticeae | |tribe=Poaceae tribe Triticeae | ||
Latest revision as of 16:24, 11 May 2021
Plants not cespitose, rhizomatous, green or slightly glaucous. Culms 60-122 cm tall, 2-3.5 mm thick, sparsely to densely pubescent below the spike. Leaves exceeded by the spikes; auricles to 1 mm; ligules 0.4-1.2 mm; blades to 9 mm wide, veins promimently rib¬bed, subequal, closely spaced. Spikes 7-32 cm long, 7-11 mm wide, sometimes glaucous, often purplish or green with traces of purple, with 1-2 spikelets per node; internodes 8-12 mm, surfaces hairy distally, hairs 0.1-0.3 mm, edges ciliate, hairs to 1 mm, coarser than the surface hairs. Spikelets 15-20 mm, with 2-6 florets. Glumes 9-28 mm long, 1.5-4 mm wide, lanceolate, glabrous towards the base, pubescent distally, midveins glabrous or with hairs to about 1.3 mm, stiff, keeled or flat proximally, keeled distally, the central portion thicker than the margins, 3(5)-veined at midlength, tapering from below midlength to an awn, awns to 4 mm; lemmas 8-10 mm, usually completely glabrous, margins and apices sometimes pubescent, apices tapering to an awn, awns to 4 mm; anthers 3.3-7.3 mm, indehiscent. 2n = 28, 42.
Distribution
Calif., Oreg., Wash., B.C.
Discussion
Leymus ×vancouverensis grows at scattered locations on beaches along the Pacific coast, from southern British Columbia to California. It is a sterile hybrid, probably between L. mollis and L. triticoides (Bowden 1957). The northern populations are outside the current range of L. triticoides.
Selected References
None.