Perennial; culms in dense tufts, 15-45 cm. high, erect from short knotty rhizomes, the bases somewhat swollen; sheaths glabrous or the margins ciliate toward the summit, the lower ones short and crowded, the lowermost scale-like, the uppermost elongate, bladeless; ligule 0.5 mm. long, ciliate; blades 5-20 cm. long, 2-5 mm. wide, attenuate, more or less involute, long-pilose on the upper surface near the base; racemes 2, conjugate, sometimes with a third a short distance below, 3-6.5 cm. long, narrowly ascending or spreading, the rachis narrow, flexuous, densely pilose at the usually naked base; spikelets 2.2-2.4 mm. long, solitary, elliptic, subacute; glume and sterile lemma equal, pointed beyond the fruit, the glume pubescent or pilose, the hairs longer on the margins, the lemma glabrous or with a few hairs on the margins; fruit about 2 mm. long, yellowish, minutely striate.
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