Erect tufted perennial; culms 45-60 cm. high; sheaths glabrous, longer than the internodes; ligule 3-5 mm. long, hyaline; innovation blades involute, filiform, soft, those of the culm 6-15 cm. long, 1.5-3 mm. wide, flat, scabrous; panicles 10-15 cm. long, green, the branches in rather distant verticils, as much as 6 cm. long, appressed or narrowly ascending, spikelet bearing to the base; spikelets 3 mm. long; glumes acuminate, scabrous on the keel; lemma 1.5 mm. long, the callus glabrous, the awn inserted slightly above the middle, twisted below, geniculate, protruding from the glumes, the exserted portion about 3 mm. long; palea obsolete.
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