Scandent shrubs or woody climbers. Leaves ± ovate to elliptic, base 3-7-nerved with the side nerves sometimes supra-basal. Inflorescence axillary or supra-axillary, cymose or thyrsoid. Seed horseshoe-shaped, narrow, embedded in endosperm.
Asia-Temperate: Asia-Tropical: Australasia: Ceylon: present Polynesia: present Tropical SE. Asia: present
From China and tropical SE. Asia (incl. Ceylon) to Australia and Polynesia; throughout Malesia. In all 6 spp.