S.Vietnam, Thua Thien Hue Prov., Phu Loc Distr., Bach Ma National Park, S slope of Bach Ma mt below Hai Vong Dai peak, to SW of point 16°11'41''N 107°51'26''E at elev. 1100-1300 m a.s.l. Mixed and broad-leaved evergreen secondary closed wet mt forest on very steep shale/granite slopes. Woody vine 25-30 m long along stream canyon. Common.
Record creation: 2026-03-16, Аверьянов Леонид ВладимировичCitation: Specimen LE 01204053 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01204053