Prov. Ninh Thuan, Distr. Ninh Hai, Mun. Vinh Hai, Vill. Vinh Hy, about 1 km to the north, to the direction of Ao Ho lake, 11044′04′' N, 109012′44′' E, about 100-200 m a.s.l. Scaterred on slopes of granite mountains. Deciduous scandent shrub, c. 5-7 m long, dbh 0.04-0..05 m. Flowers and fruits pale violet.
Collectors: V.V. Can, V.X. Phuong and all members of group no 1 No: HLF 3712 Date: 22-03-2004 Plants collected with the financial support of Luce Foundation (USA)