Vietnam, Quang Binh Prov., Bo Trach Distr., Hung Trach Municipality, Khe Me locality, around point 17є27'51''N, 106є22'46''E at elev. 900-1000 m a.s.l. Slightly logged primary closed broad-leaved evergreen forest on slopes of mountains composed with shale and sandstone.
Hemi-woody vine 15-20 m long. Flowers light violet, fragrant. Not common.
Record creation: 2026-02-24, Galina Savich, PhotoScan D2Citation: Specimen LE 01318808 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01318808