N.Vietnam, Thanh Hoa Prov., Ba Thuoc Distr., Thanh Son Municipality, E macroslope of Pu Luong range around point 20є29'38''N, 105є06'36''E at elev. 600 m a.s.l. (Pha Noi pass). Secondary evergreen shrubs on shale soil. Woody vine up to 30 m lg. Leaves dark green, shining above, paler beneath. Flowers whitish.
Record creation: 2026-10-19, Аверьянов Леонид ВладимировичCitation: Specimen LE 01360707 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01360707