Quang Ninh Province, Van Don District, Minh Chau Commune, Bai Tu Long National Park, Ba Mun protection sector|, Ba Mun Island, around point 21º04’33’’N 107º35’28’’E. Young secondary broad-leaved evergreen forest on rocky sandstone slope along seashore at 0–5 m a.s.l. Herbaceous or semi-woody vine to 8 m long in sublittoral not flooded zone along rocky seashore. Flower buds yellowish. Common.
20 May 2025, Cuong Huu Nguyen, Ha Van Dang, Ly Van Nguyen, Nam Van Duong, Tuan Thanh Tran, Hai Xuan Cao, L. Averyanov, T. Maisak, AL4396 (NHC189).
Record creation: 2025-06-19, Аверьянов Леонид ВладимировичCitation: Specimen LE 01203348 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01203348