Perennial herbs with tunicate corms. Roots fibrous. Leaves annual, 2–3, linear with inflated sheathing base, basal and/or cauline. Inflorescence a spike or solitary flower. Flowers unisexual (then male and female flowers dissimilar); tepals 6 (rarely 7 or 8), in one whorl, equal, fused near base or in lower half, with 1 or 2 nectaries; stamens as many as tepals, filaments tapering from base, anthers dorsifixed to (rarely) basifixed, dehiscing by marginal slits; ovary superior, 3(–4)-locular, ovules 10–25 per locule; styles 3 (–4) filiform, stigmas minute. Fruit a loculicidal or septicicial capsule; seeds spheroid, brown.
About 40 species, in southern Africa and Australia; 19 endemic in Australia, 4 in Victoria.