S. Vietnam, Prov. Lam Dong, distr. Lac Duong, municipalite Da Chay, 29 km to NEE from Dalat city. Open grasslands on sandy slopes of river valley on W macroslope of Bi Dup mt system at 1450 m alt. (N 12° 08′, E 108° 39′). Shrublet up to 1.5 m hg in open place. Flowers purple-violet. Not common, but occasionally abundant. VH 4002 16.04.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)