Plants caespitose. Culms erect or basally geniculate, 20–115 (–150) cm high, 2–4-noded. Leaves: basal sheath margins connate in lower 2/3 or free; blade 3–38 cm long, 1.5–6 mm wide. Panicles erect, 0.8–10 cm long, sometimes interrupted. Spikelets subsessile or pedicellate, oblong to obovate, 3–5 mm long; rachilla glabrous or very sparsely silky. Glumes about equalling floret, narrowly ovate or lanceolate to narrowly elliptic, 2.5–4 mm long, acute to obtuse; margins ciliolate-scaberulous especially towards apex, often smooth near base; keel scabrous to hirsute. Callus hairs silky, to c. 1 (–1.2) mm long. Lemma oblong to lanceolate or ovate, 3–4 (–5) mm long, acute, shortly bifid with lobes to 1.5 mm long or entire, awned, 5–11-nerved, scaberulous especially towards apex, often antrorsely scabrous-puberulous near apex; awn (1.5–) 3–16 mm long, inserted 0.2–0.8 (–1) mm below apex. Palea narrowly ovate to lanceolate, acute; nerves scabrous towards apex. Anthers (0.5–) 1–1.6 mm long. Ovary glabrous or occasionally with a few isolated hairs. Caryopsis ellipsoid.
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