S. Vietnam, Dak Lac Prov., Krong Bong Distr., Cu Pui Municipality, elevation from Dak Tour village (12°30'N, 108°30'E) to main peak of Chu Yang Sinh mt system (12°24'N, 108°26'E) along Dak Tour river (N slope). Primary closed mountain broad-leaved evergreen forest on very steep granite slopes along river canyon at elev. 1400 m. Epiphyte creeping woody vine 20-25 m lg. Abundant at elev. 1300-1500 m.
No VH 6392 12.05.2000
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6383-98)