S. Vietnam, Prov. Lam Dong, distr. Lac Duong, municipalite Da Chay, 31 km to NE from Dalat city (N 12° 08′, E 108° 39′). Closed primary evergreen broadleaved cloud forest on N macroslope of Bi Dup mt system at 2000-2100 m alt. Terrestrial herb up to 1.2 m hg on steep open rocky slopes. Flowers white with pink on central tepal. Very common. VH 4452 01.05.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)
Collectors: L. Averyanov, N.Q. Binh, N.T. Hiep, P.K. Loc, P. Lowry