S. Vietnam, Prov. Lam Dong, distr. Lac Duong, municipalite Da Chay, vicinities Klong Lanh village, 31 km to NE from Dalat city (N 12° 08′, E 108° 39′). Secondary grasslands and shrub associations on river valley slopes on NW macroslope of Bi Dup mt system at 1450 m alt. Herb up to 1 m hg. Flowers white. Not rare. VH 3292 27.03.1997 International Botanical Expedition of the U.S.A. National Geographic