Glabrous perennials, with slender culms, narrow setaceous basal leaves, flatten-ed usually solitary spikelets, and an involucre of 1 bract; scales imbricated in two rows, keeled and deciduous; bristles none; stamens 1-3; style pubescent, deciduous, with a somewhat swollen base; achenes trigonous. About 15 species, chiefly in the Old World tropics. Differs from Bulbostylis in the glabrous, distichous scales, and the stalked tuberculate achenes with isodiametric cells.