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. Woody vine to 5 m long in sublittoral not flooded zone along rocky seashore. Flowers dull yellow. Very 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, AL4399 (NHC192).
Record creation: 2025-06-19, Аверьянов Леонид ВладимировичCitation: Specimen LE 01203351 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01203351