N. Vietnam, prov. Cao Bang, distr. Bao Lac, municipality Dinh Phung, about 5 km to NW from Yen Lac village (N 22°44′ E 105°50′), about 50 km to NWW from Cao Bang town. Old secondary closed broadleaved wet cloud forest on steep slopes and cliffs along top of Nam Linh limestone ridge at 1500-1580 m alt. Herb up to 1 m hg in shadow karst crevices. Flowers green, Ripe fruits dirty green, seeds brightly red. Not rare.
CBL 495 19 Nov. 1998
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)