Perennials, erect, caespitose. Flowering culms 80–120 cm high. Leaves: basal leaf sheath margins glabrous; ligule a fringe of hairs, to 0.5 mm long; blade involute, filiform, 14–35 cm long, 1–1.5 mm wide, with smooth margins. Inflorescences paniculate (much-branched), irregular, open, 3–40 cm long; primary branches solitary, equalling or much longer than adjacent internodes, spreading or divaricate, without spikelets in the lower quarter, with spikelets loosely spaced and fairly even. Spikelets pedicellate, 2.5–3 mm long; pedicel 4–12 mm long. Glumes oblong; lower glume to 1.5 mm long, acute, without nerves; upper glume at least half spikelet length, to 2 mm long. Lemma linear or lanceolate, 2.5–3 mm long, truncate, obscurely 3-nerved. Palea subequal to lemma, entire. Anthers 3, to 2 mm long. Grain oblong, quadrangular, 1.3–1.8 mm long, to 0.8 mm wide, to 0.6 mm thick, wrinkled, pale brown. Embryo ±half as long as grain.
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