N. Vietnam, prov. Cao Bang, distr. Nguyen Binh, municipality Ca Thanh, vicinities Ca Lu village, about 7-8 km to SE from Yen Lac village (N 22°44′ E 105°50′), about 38 km to NWW from Cao Bang town. Old open mixed semideciduous and coniferous (with Pseudotsuga brevifolia) primary forest along tops of limestone ridge and on steep slopes near ridge tops at 1350-1450 m alt. Climbing shrublet up to 2 m lg in wet open place. Ripe fruits red. Not common.
CBL 552 21 Nov. 1998
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)