Large lianas. Leaves often peltate, palmately nerved, lamina tomentellous, often whitish below. Inflorescence supra-axillary or ramiflorous, composed of a raceme of peduncled ± globose heads of flowers.
Asia-Tropical: Borneo present; India present; Malaya present; Sumatera (Sumatera present); Thailand (Thailand present), Ceylon present, W. Java present, W. Malesia present
Two species: Ceylon, India, Thailand, Indochina; in W. Malesia: Malaya, Sumatra, W. Java, Borneo.