Bac Kan Province, Ba Be District, Ba Be National Park. Primary and old secondary evergreen broad-leaved forest on very steep rocky slopes composed by white crystalline marble-like highly eroded limestone around point 22º27’26’’N 105º36’12’E at elev. of 600-800 m a.s.l. Herbaceous vine 3-4 m long with milky juice in open rocky place. Not common.
30 October 2023, Nguyen Huu Cuong, Chu Ngoc Quan, L. Averyanov, Nguyen Van Ly, T. Maisak, AL2375.
Record creation: 2023-12-01, Аверьянов Леонид Владимирович. Processing status: work_status_1Citation: Specimen LE 01124486 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01124486