Perennial. Culms tufted, slender, 20–40 cm tall, pilose-tomentose on nodes and below inflorescence. Leaf sheaths compressed, hirsute; leaf blades lanceolate, 5–18 × 0.3–0.5 cm, both surfaces densely hirsute, apex acuminate; ligule ca. 2 mm. Racemes 2–4, 2–3 cm; spikelets single, in 2 rows; rachis flattened, winged, ca. 1.5 mm wide; pedicels pilose with soft white hairs. Spikelets broadly elliptic, 2–2.3 mm, usually glabrous, subacute; upper glume membranous, 3–5-veined, occasionally minutely pubescent on margins; lower lemma 5–7-veined, glabrous, subacute; upper lemma brown, as long as spikelet, cartilaginous, finely punctulate-striate, obtuse. Fl. and fr. May–Oct.
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