Perennial. Culms loosely tufted, ascending, rooting at lower nodes, 30–60 cm tall, nodes eglandular. Leaf sheaths glabrous except for ciliate outer margin; leaf blades linear-lanceolate, 5–15 × 0.5–1 cm, smooth, glabrous, base rounded, apex acuminate; ligule ca. 1 mm. Panicle open, 5–15 cm, eglandular; primary branches laxly ascending, moderately branched with scattered spikelets, smooth; pedicels equaling or longer than spikelets. Spikelets oblong, ca. 2.5 mm; florets slightly dissimilar, lower floret bisexual, upper floret usually female; glumes similar, ovate-oblong, slightly shorter than spikelet, 5–7-veined, glabrous, obtuse; lower lemma elliptic-oblong, shallowly convex, cartilaginous, densely white-ciliate along whole length of margin, otherwise glabrous; upper lemma similar but slightly shorter and more ovate. Fl. and fr. Jun–Sep.
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