Quang Binh Prov., Minh Hoa Distr., Thuong Hoa municipality, environs of Mo O O O village, around point 17°40'03.6"N 105°55'08.5"E. Dense broad-leaved closed forest along highly eroded rocky limestone ridge at elevation about 500 m a.s.l. Lithophytic vine on shady vertical cliff neat ridge top. Flowers violet. Occasional. CPC 3913 29 July 2011. Coll.: N.T.Hiep, L.Averyanov, N.S.Khang, N.Q.Vinh.
Coordinates (geographic position):17° 40′ 3.6″ N, 105° 55′ 8.5″ E ±1000 mRecord creation: 2019-06-12, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01055311 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01055311