Scleria corymbosa Roxb.

Perennial. Stems often robust (but slender specimens not rarely occur), smooth or scaberulous in the upper part, up to 2 m by 1 cm. Leaves abruptly narrowed to the obtusish tip, glabrous, smooth or somewhat scaberulous on the margins near the top, 7-25 mm wide; sheaths loose, not winged, smooth or scaberulous on the angles, glabrous; contraligule broadly ovate-triangular, glabrous, with a broad, fuscous, scarious margin. Inflorescence often copious, up to 75 cm long, consisting of a few to several distant fascicles of panicles; lateral panicles 2-3 together at the nodes, rarely solitary, dense, de-compound, corymbiform; peduncles very unequal, up to 10 cm exserted from the sheaths; lower primary bracts usually overtopping the inflorescence; secondary bracts subulate. Spikelets bisexual and ♂, stramineous to dark brown, 4-5 mm long; ♂ spikelets lanceolate; stamens 3; anthers c. 2 mm long; bisexual spikelets broadly ovoid, with some ♂ flowers besides the ♀ one. Disk obsolete, reduced to a brown or reddish, narrow, triangular, minutely glandular band concrete with the nut. Nut ovoid, obtusely trigonous, with 3 shallow depressions at the base, acute, hardly or not umbonulate, shining, snowy white, rarely somewhat discoloured, 3-3½ by 2-2½ mm.

Damp, shaded localities, swamp-forests, but also wet places in the open, at low altitudes, up to 300 m.