Erect, glabrous herbs. Leaves cauline, with tubular, ensheathing bases; Flowers solitary, in a few-flowered cluster or in a raceme terminating the stem. Ovary superior, sessile, ovoid, oblong or obovoid, 3-celled; Capsule globose, cylindrical or ellipsoid, loculicidal. Seeds globose or angular;
Asia-Tropical, Australasia, Madagascar present, New Zealand present, SE. Asia present, Southern and tropical Africa present
Southern and tropical Africa (5 spp.), Madagascar (2 spp.), SE. Asia (4 spp.), of which one species extends through Malesia to Australia, and New Zealand.