Bac Kan Province, Ba Be District, Ba Be National Park. Dry evergreen broad-leaved secondary forest on steep rocky slopes composed by white crystalline marble-like highly eroded limestone near Dau Dang Waterfall of Nang River around point 22º27’09’’N 105º34’16’E at elev. of about 150 m a.s.l. Herbaceous vine 3–4 m in cliff along diver. Common.
20 October 2023, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, Nguyen Van Ly, T. Maisak, AL2329.
Record creation: 2023-12-01, Аверьянов Леонид Владимирович. Processing status: work_status_1Citation: Specimen LE 01124441 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01124441