Rubiaceae Juss. Uncaria scandens (Smith) Hutch. S. Vietnam, Prov. Kontum. Open secondary forest on N slope of Ngoc Linh mountain system at 1600 m alt. Climbing shrub up to 3 m high. Flowers green yellowish. VH 732 13.03.1995 International Botanical Expedition of the U.S.A. National Geographic
Society (grant No 5094-93)
Participants: L. Averyanov, N.T. Ban, N. Q. Binh, A. Budantzev, L. Budantzev, N.T. Hiep, D.D. Huyen, P.K. Loc, N.X. Tam, G. Yakovlev