S. Vietnam, Prov. Lam Dong, distr. Lac Duong, municipalite Da Chay, vicinities Klong Lanh village, 32 km to NNE from Dalat city (N 12° 08′, E 108° 39′). Old open secondary dry coniferous forest with domination of Pinus kesiya at 1500-1550 m alt. in 7-8 km from Bi Dup main peak to the W. Prostrate herb with white flowers in open place along stream. Common. VH 3724 06.04.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)