dioecious herbs, tubers variable in shape, colour, and depth in ground.
Axillary bulbils present or absent. Leaves mostly alternate, sometimes
opposite, petiolate, simple or palmately compound, with 3-7 leaflets, nerves
palmate in simple leaves and pinnate in leaflets. Male inflorescence: axillary,
spicate, racemose or rarely cymose, flowers small, green or rosaceous or
whitish, stamens 6, sometimes inner 3 forming staminodes. Female inflorescence:
axillary, spicate, 3.5-10.0 cm long, few flowered, staminodes present or absent.
Fruit a capsule, 3-winged, dehiscent. Seeds with a membranous wing.