Plants to 0.8 m tall, with shoots intravaginal. Culm nodes 2 or 3, barely exserted, glabrous, thickened. Leaves: sheaths belatedly loose, glabrous, scabrous or hirsute; ligule 0.5–1.0 (–2.0) mm long, truncate, glabrous, thinly coriaceous; auricles thickened, hirsute; blade rolled, 0.5–0.6 mm wide, or flat, to 4 mm wide, mostly glabrous or scabrous (basal leaves occasionally hirsute), strongly ribbed on adaxial surface. Inflorescence to 35 cm long, contracted; spikelets slightly gaping. Glumes equal to unequal, 10–13 mm long, acuminate. Callus 1.6–2.2 mm long, straight, densely white-to pale yellow-sericeous. Lemma 4.5–6.5 (–7) mm long, finely granular, tuberculate towards apex, black-brown at maturity, with white hairs, sparse towards apex; coma obscure, to 1 mm long; lobes (1 or) 2, to 0.25 mm long; awn 50–70 (–90) mm long, with column 11–14 mm long and densely pubescent or villous, and bristle gently falcate, scaberulous. Palea 0.3–0.5 mm shorter than lemma, acute to obtuse. Lodicules 2, long-spathulate.
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