N. Vietnam, prov. Ha Giang, distr. Meo Vac, municipality Sung Chang, vicinities of Lu Lu Phin village (N 23°11′ E 105°18′). Secondary open broadleaved forest on steep slopes and bluffs of karst remnant limestone ridge at 1300-1350 m elev. Terrestrial and lithophyte herb in shady place. Very common. Codominanthe of herb forest stratum.
CBL 1815 29 April 1999
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)