Difference between revisions of "×elyhordeum jordalii"
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Revision as of 22:46, 27 May 2020
Culms 25-30 cm. Lower sheaths puberulent; blades 2.5-4.5 mm wide, adaxial surfaces slightly scabrous. Spikes 4-12 cm, erect to slightly nodding, usually with 2 spikelets per node. Spikelets 7-12 mm excluding the awns, with 2-3 florets. Glumes 7-13 mm long, bases about 1 mm wide, not indurate, with a prominent, scabridulous midrib, apices gradually tapering into an awn shorter than 20 mm; lemmas 6-8 mm, shortly pubescent, the pubescence decreasing in density towards the apices, apices awned, awns 5-8 mm; anthers about 1.5 mm, indehiscent. 2n = unknown.
Discussion
×Elyhordeum jordalii consists of hybrids between Elymus macrourus and Hordeum brachyantherum. It grows in the Brooks Range, Alaska. According to Jordal (1951), it was "only observed near settlements on the lowlands south of the range where it has a weedy habit. Dense tufts near cabins." It resembles ×E. pilosilemma, which differs in having H. jubatum as the Hordeum parent.
Selected References
None.