N.Vietnam, Ha Tinh Prov., Huong Son Distr., Son Hong Municipality, around point 18є34'06''N, 105є11'40''E. Primary broad-leaved evergreen forest on steep mt slopes composed with granite along Khe Van stream at elev 400-450 m a.s.l. Creeping woody vine 15-20 m long. Flowers white, fragrant. Rare.
Record creation: 2026-10-19, Аверьянов Леонид ВладимировичCitation: Specimen LE 01360715 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01360715