S. Vietnam, Prov. Lam Dong, distr. Lac Duong, municipalite Da Chay, 29 km to NEE from Dalat city. Open wet coastal sands among large granite rocks along mt river on W macroslope of Bi Dup mt system at 1450 m alt. (N 12° 08′, E 108° 39′). Parasitic vine up to 4-6 m lg on river coastal shrubs. Not common. VH 3992 16.04.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)