S. Vietnam, Kontum Prov., Kon Plong Distr., Hieu Municipality, Mang La forest enterprise (14є39'N, 108є25'E). Primary evergreen broad-leaved wet forest on steep mt. slopes on sandstone & gneiss at elev. 1000-1200 m. Epiphytic creeping vine up to 10-15 m hg. Common.
No VH 5110 15.04.2000
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)