Perennial taprooted or rhizomatous herbs, glabrous. Leaves mostly basal, petiolate, 1–2(–3 outside Victoria)-pinnate; leaflets ovate, rhombic or fan-shaped, often glaucous, sessile or sometimes petiolulate; petioles c. erect, sheathing at base. Inflorescence, axillary, a compound umbel; bracts and bracteoles few-several, narrow-linear, free or partially fused. Flowers bisexual or unisexual and then the plants polygamous; sepals small; petals broad-ovate, tip strongly inflexed; nectary low-conical. Fruit ovoid, ellipsoid or oblong; mericarps 5-ribbed, lateral ribs sometimes winged; carpophore persistent, entire or notched.
7 species, from Australia and New Zealand; 3 species (2 endemic) in Australia.