Perennial; culms densely cespitose, erect, 70-100 cm. high, smooth, shining; sheaths glabrous, the lower ones crowded, the upper ones elongate but much shorter than the internodes; ligule very short, minutely ciliate; blades loosely in-volute, firm, erect, glabrous, 15-25 cm. long, the uppermost reduced; panicles 10-15 cm. long, the branches solitaryor in pairs, rather distant, spreading, or erect at maturity, the lowermost as much as 10 cm. long; spikelets about 8 mm. long, 4-to 5-flowered; first glume narrow, 1-nerved, 4-6 mm. long, the second broader, obscurely 3-nerved, 6-8 mm. long; lemmas 5-7 mm. long, scabrous, awnless or awn-tipped.
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