N. Vietnam, prov. Cao Bang, distr. Thach An, municipality Duc Xuan, (N 22ø21' E 106ø27'), about 39 km to SSE from Cao Bang town. Secondary open shrubs on alluvial foothills of remnant limestone ridge at 400 m alt. Herb vine up to 2 m lg in open place. Common.
No CBL 819 02 Dec. 1998
International Botanical Expedition of the U.S.A. National Geographic Society (grant No 6300-98)
Collectors: Averyanov L., P.K. Loc.
Record creation: 2026-03-11, Galina Savich, PhotoScan D2Citation: Specimen LE 01317099 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01317099