succulent herbs with fibrous roots and linear leaves. Cymes sessile, of 3-5
flowers embedded in the hollow axils of bulged leaf-sheaths. Bracteoles
transparent, linear, inconspicuous. Filaments bearded, anthers oblong. Ovary
3-celled, each cell single ovuled. Fruit a capsule with pointed tip or
depressed in the center with three projections. Seeds pointed.