Vietnam, Ha Giang Prov., Quan Ba Distr, Thanh Van Municipality, around point 23º05’49’’N, 105º00’28’’E at elevation about 1050 m a.s.l. Secondary broad-leaved forest on rocky highly eroded marble-like limestone remnant mountains. Herbaceous to semi-woody to vine 3-5 m long in open place. Flowers white. Not common.
Record creation: 2025-11-24, Аверьянов Леонид ВладимировичCitation: Specimen LE 01203525 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01203525