Tuyen Quang Prov., Na Hang Distr., Sinh Long Municipality, Khuoi Phin village, around point 22°38'21.9"N, 105°20'43.5"E. Primary evergreen mixed humid forest on rocky limestone on highly eroded karstic hills composed with gray solid marble-like limestone at elevation 1100-1200 m a.s.l. Semiwoody creeping epiphytic and lithophytic vine 4-5 m long. Not rare.
29 September 2013 CPC 5291 / TM 1018 - living plant.
L.Averyanov, T. Maisak et al.
Flowered in 3 July 2017. Flowers white with quite distinct sweet, rather unpleasant fragrance. L. Averyanov.
Record creation: 2021-11-12, Leonid Averyanov, PhotoScan D2Citation: Specimen LE 01122840 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01122840