S. Vietnam, Kontum Prov., Kon Plong Distr., Hieu Municipality, Mang La forest enterprise (14°39′N, 108°25′E). Degraded primary and secondary wet evergreen broad-leaved forest (with Dacrydium and Dacrycarpus) along mountain river valley at elev. about 1100-1150 m on sandstone. Herb vine 4-6 m hg in open place along river. Flowers white. Common.
VH 5405 20.04.2000
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)