N. Vietnam, Ha Giang prov., Quan Ba distr., Can Ti municipality, vicinities of Sing Xuoi Ho village (N 23º04' E 104º59'), 26.2 km to 002º of Ha Giang city. Primary closed evergreen mixed wet mossy forest (with Cupressus, Taxus, Nagea and Pseoudotsuga) along tops of karst remnant limestone ridge at elev. 1100-1150 m a.s.l. Lithophytic and epiphytic creeping vine up to 2 m lg. Leaves below pink-violet. Flowers orange-yellow with purple-brown marks. Very common. No NTH 3577 12 Oct. 1999 Collectors: N.T. Hiep, N.Q. Binh, L. Averyanov, P. Cribb.
Coordinates (geographic position):23° 4′ N, 104° 59′ E ±1000 mRecord creation: 2019-06-21, Leonid Averyanov, PhotoScan D1. Processing status: work_status_1Citation: Specimen LE 01055723 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01055723