Calostemma

Bulbous perennial herbs. Leaves annual, basal, linear, appearing after flowering-time. Inflorescence a scapose umbel enclosed in bud by 2 or 3 ovate bracts. Flowers bisexual, pedicellate; perianth funnel-shaped, segments fused in lower half, weakly spreading above; stamens 6, inserted at throat of perianth tube, with filaments broadly dilated toward base and fused to form a corona, filaments filiform, anthers versatile, dehiscing introrsely; ovary inferior, globose, 1-locular; ovules 2; style filiform, stigma minute, capitate. Fruit indehiscent, globular, 1(rarely 2)-seeded.