Bac Kan Province, Ba Be District, Nam Mau Municipality, central part of Ba Be National Park. Rather dray evergreen broad-leaved old secondary forest with domination of Burretiodendron hsienmu and Streblus asper on crystalline highly eroded rocky limestone at elevation 600-750 m a.s.l. Herbaceous vine to 5 m long in open place on wet humid valley between limestone hills. Flowers yellow. Not rare.
16 November 2022, Nguyen Huu Cuong, Cao Xuan Hai, L. Averyanov, T. Maisak, AL 1671.
Record creation: 2022-12-15, Аверьянов Леонид Владимирович. Processing status: work_status_1Citation: Specimen LE 01123662 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01123662