N. Vietnam, Bac Can prov., Na Ri distr., Kim Hy municipality, vicinities of Lung Hin Con village (N 22º17' E 106º03'), 27 km to 55º of Bac Can city. Remnants of primary mixed evergreen dry open forest with Pseudotsuga brevifolia and bamboo along tops of remnant karst limestone ridge at elev. about 800 m a.s.l. Lithophytic and epiphytic vine up to 3 m lg. Leaves below deep violet. Not rare. No NTH 3677 9 Oct. 1999 Collectors: N.T. Hiep, P.K. Loc, L. Averyanov.
Coordinates (geographic position):22° 17′ N, 106° 3′ E ±1000 mRecord creation: 2019-07-02, Аверьянов Леонид Владимирович. Processing status: work_status_1Citation: Specimen LE 01055722 // Virtual herbarium of Komarov Botanical Institute RAS — http://re.herbariumle.ru/01055722