Quang Binh Prov., Tuyen Hoa Distr., Lam Hoa municipality, Hung village, around point 17°56’10”N 105°49’15”E. Highly degraded primary and secondary evergreen broadleaved forest on very steep rocky slopes of remnant limestone hills composed with highly eroded marble-like crystalline limestone at elev. 150-200 m a.s.l. Woody vine 20-25 m long on shady slope. Rare.
CPC 2512a, 29 April 20, L.Averyanov, P.K.Loc, N.Q.Hieu, P.V.The, N.T.Vinh.
Flowered under cultivation on 10 November 2021, L. Averyanov, T. Maisak, CPC 2512a, flowers dull yellowish, with light sweet scent.
Coordinates (geographic position):17° 56′ 10″ N, 105° 49′ 15″ E ±1000 mRecord creation: 2021-11-09, Leonid Averyanov, PhotoScan D2. Processing status: work_status_1Citation: Specimen LE 01077604 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01077604