Quang Ninh Province, Van Don District, Van Yen Commune, Bai Tu Long National Park, Cai Lim protection sector|, around point 21º06’30’’N 107º34’42’’E. Young secondary evergreen broad-leaved forest with bamboo on steep sandstone and limestone slope at elevation about 80-150 m a.s.l. along forest trail. Herbaceous vine to 3 m long in open place along trail. Very common.
17 May 2025, Cuong Huu Nguyen, Ha Van Dang, Ly Van Nguyen, Nam Van Duong, Tuan Thanh Tran, Hai Xuan Cao, L. Averyanov, T. Maisak, AL4355 (NHC155).
Record creation: 2025-06-16, Аверьянов Леонид ВладимировичCitation: Specimen LE 01203305 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01203305