S. Vietnam, Prov. Lam Dong, distr. Lac Duong, municipalite Da Chay, 35 km to NE from Dalat city. Secondary grasslands along stream valley on NW macroslope of Bi Dup mt system at 1450 m alt. (N 12° 08′, E 108° 39′). Herb up to 0.3 m hg in wet place. Not rare. VH 2924 19.03.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)