Woody lianas with opposite, entire leaves, usually bearing stellate hairs. Dioecious, with lateral or terminal cymose panicles or pleiochasia.
Asia-Tropical:, New Guinea present Australasia:, Queensland (Queensland present) E. Sulawesi: present
Australia and Malesia: 11 spp. in New Guinea, of which 3 may also occur in Queensland and one extends to E. Sulawesi. Three further species have been described from Australia.