Perennial, tufted; basal sheaths glabrous. Culms (0.35–)0.75–1 m tall, 2–4 mm in diam., glabrous at nodes and below inflorescence, nodes blackish. Leaf sheaths glabrous or margin ciliate; leaf blades linear, (13–)45–60 × 0.2–0.6 cm, abaxial surface glabrous, adaxial surface hispid with tubercle-based hairs, margins scabrid, apex finely acuminate; ligule ca. 0.5 mm, margin ciliate. Racemes 5–20 or more, subdigitate on an axis to 3 cm, 8–16 cm, hairs white; rachis internodes and pedicels ca. 2/3 spikelet length, densely woolly-ciliate. Spikelets 2.8–3.5 mm, chestnut brown, glossy; callus hairs short, ca. 0.5 mm; lower glume narrowly elliptic-oblong, cartilaginous, back flat, flanks villous in lower 2/3, upper keels stiffly ciliate, veinless between keels, apex acute; upper lemma oblong, apex truncate-denticulate, awnless. Anthers 1.8–2 mm. Fl. and fr. Jul–Nov.
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