Ceratopetalum Sm.

6 species in Aust. (5 endemic); Qld, NSW

Tall shrubs or trees, glabrous. Leaves 1–3-foliolate, thick, shining, articulate on the petiole. Flowers small, in terminal panicles or corymbose cymes. Floral tube short, adnate to the base of the ovary. Sepals 4–5, valvate, persistent, enlarging and coloured reddish after flowering. Petal 4 or 5, or absent. Ovary half-inferior, 2-locular; ovules 4 per loculus; stylar branches 2, united at the base. Fruit a nut surrounded by the enlarged coloured sepals and thus resembling a flower but finally becoming dry.