culms ascending or erect from a slender creeping rhizome, branched below, 1–2 ft. high, very slender, glabrous, many-noded, internodes exserted; leaves equally distributed over the culms; sheaths tight, glabrous; blades narrowly linear, tapering to an acute point, usually involute, somewhat subulate, reflexed, 3/4–1 1/4 lin. long, glabrous, margins cartilaginous; panicle narrow, 1–3 in. long, flaccid or erect and flexuous, contracted or open; rhachis filiform; branches 2–3-nate, capillary, almost smooth, branched from below the middle, up to 1 in. long, tips of pedicels with long fine hairs; spikelets light brown, 2–3 lin. long; lower glume ovate, subacute or obtuse, 1 1/4–1 1/2 lin. long, glabrous, thin, upper lanceolate acuminate, acute, 2–2 1/2 lin. long; lower floret ♂: valve like the upper glume, slightly longer; pale linear-oblong, 1 1/2 lin. long; stamens 2, anthers 1/2 lin. long; hermaphrodite floret: valve oblong, 1 lin. long, deeply bifid, lobes produced into fine bristles 1 1/2 lin. long, glabrous except a long beard on each side at the middle, sub-7-nerved; callus minute, obtuse, minutely bearded; awn very fine, 3 lin. long, column very short; pale 1 1/2 lin. long; stamens 2. null