N. Vietnam, Prov. Quang Binh, distr. Minh Hoa, 72 km to NWW from Dong Hoi, municipalite Thong Hoa, vicinities of Yen Son village, limestone massif Ke Bang (N 17ш40' E 105ш57'). Primary evergreen open broadleaved dry forest on top of limestone mesas at 550-600 m alt.
Tree about 10 m hg. Not common.
No VH 4699 16.05.1997
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 5803-96)