S. Vietnam, Prov. Lam Dong, distr. Lac Duong, municipalite Da Chay, 40km to NE from Dalat city. Closed primary wet broadleaved cloud forest on SW macroslope of Hon Giao mt. ridge at 1700 m alt. (N 12° 11′, E 108° 43′). Terrestrial sedge up to 0.8 m hg. Not rare. VH 4124 21.04.1997 International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)