N. Vietnam, prov. Cao Bang, distr. Ha Lang, municipality Dong Loan,. vicinities of Ban Lung and Lung Phuc (N 22°46' E 106°44'), about 50 km. to E from Cao Bang town. Secondary evergreen forest on alluvial walley. among limestone rocks on foothills of remnant limestone ridges at 400. m alt. Epilite herb on steep slopes. Ripe fruits blue. Common. No CBL 612 24 Nov. 1998. International Botanical Expedition of the U.S.A. National Geographic. Society (grant No 6300-98). Collectors: Averyanov L., P.K.Loc, N.X.Tam.
Coordinates (geographic position):22° 46′ N, 106° 44′ E ±1000 mRecord creation: 2019-02-22, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01049855 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01049855