N. Vietnam, prov. Cao Bang, distr. Nguyen Binh, municipality Ca Thanh (N 22°44′ E 105°50′). Primary semideciduous broad-leaved forest on steep slopes and bluffs of remnant karst limestone ridge at 1250-1300 m elev. Tree about 5-6 m hg. Flowers dull pale yellowish, pleasant fragrant. Very common.
CBL 1268 13 April 1999
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)