Plants forming hummocks 0.3–0.5 m high. Flowering culms 0.9–1.2 m high, branched near base, minutely scaberulous. Leaves: orifice glabrous; auricles round, ciliolate; blade filiform, to 40 cm long, pseudopetiolate, scabrous on upper surface. Panicles contracted, c. 30 cm long, 5 cm wide; axis and divisions ribbed, scabrous; branches to 11 cm long, naked in lower 5–8 cm, with uppermost spikelet terminal on branch. Spikelets narrow, 5–6 mm long excluding awns, 4-flowered; pedicel 3 mm long. Glumes 5–6 mm long, 2-lobed, shortly awned from sinus, membranous to cartilaginous, faintly 3–5-nerved; lower glume densely scaberulous; upper glume scaberulous upwards. Callus blunt, densely bearded with straight white silky hairs. Basal lemma body (including callus) 5–5.5 mm long, scabrous near top, ciliate on margins and midnerve in lower half; midlobe to 13 mm long, flat near the base, attenuating into a curved or twisted awn; lateral lobes c. 1 mm long, acuminate. Palea slightly longer than lemma body, entire, membranous, glabrous; keels narrowly winged near base, scaberulous. Anthers c. 1.8 mm long.
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