N. Vietnam, prov. Cao Bang, distr. Tra Linh, municipality Luu Ngoc, vicinities of Lung Mu village (N 22°47′ E 106°18′), about 14 km from Cao Bang town to the N. Secondary shrubs and grasslands on alluvial valley between remnant limestone ridges and mesas at 600-650 m alt. Shrub up to 3-4 m hg along stream. Ripe fruits black, edible. Monodominante on stream and karst like periodically flooded beaches on alluvial valley.
CBL 1182 13 Dec. 1998
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)