FLORA OF VIETNAM. Boehmeria tonkinensis Gagnep. 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 17°40' E 105°57'). Remnant open evergreen primary broadleaved forest along river in alluvial valley bottom between limestone ridges and mesas at 200 m. alt. Shrublet up to 2 m hg in open wet places. Not rare. No VH 4745  17.05.1997. International Botanical Expedition of the U.S.A. National Geographic. Society (grant No 5803-96). . Collectors: L. Averyanov, N.T. Hiep, P.K. Loc