Hoa Binh Prov., Tan Lac Distr., Ngo Luong Municipality, Bo village., coordinate ca. 20°29′18”N 105°15′43”E.
Edges of heavily logged evergreen broad-leaved scrub near foot of limestone mts., at elevation about 770-800 m a.s.l. Woody vine, up to 5-10 m long. Unripe fruits. Occasional common. CPC 1795 31 March 2011 Coll.: N.Q.Hieu, L.Averyanov, N.T.Hiep, P.K.Loc, P.V.The, N.T.Vinh, T.B.Ngan, N.Tap, D.D.Dao, V.T.Ha.