S.Vietnam, Thua Thien Hue Prov., Phu Loc Distr., Bach Ma National Park, N slope of Bach Ma mt system, to the N-NW of point 16°12'11''N 107°50'23''E at elev. about 400 m a.s.l. Broad-leaved evergreen wet primary closed forest on very steep sandstone, shale and granite slopes along rocky stream canyon. Woody vine 20-30 m long. Very common.
Record creation: 2026-03-16, Аверьянов Леонид ВладимировичCitation: Specimen LE 01204052 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01204052