S. Vietnam, Prov. Lam Dong, distr. Lac Duong, municipalite Da Chay, 40 km to NE from Dalat city. Closed primary broadleaved forest on SW macroslope of Hon Giao mt. ridge at 1500-1600 m alt. (N 12° 11′, E 108° 43′). Prostrate terrestrial herb up to 0.3 m hg on open slopes of river valley. Common. Usual dominante of forb forest stratum in mt area to the SW of Hon Giao mt. ridge at 1450-1550 m alt. VH 4428 26.04.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)