FLORA OF VIETNAM
Asclepiadaceae
Periploca purpurea Kerr

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Bat Dai Son commune, Pai Chu Phin village, around point 23°07ʹ54.9ʺN 104°59ʹ24.1ʺE, 1000-1220 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved and coniferous (with Pseudotsuga sinensis) humid forest on steep rocky slopes near mountain tops. Woody vine 3-5 m long on rocky mountain top. Flowers purple-violet. Common. 16 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 272 (HN, LE01054339, LE01054340). Det.: M. Rodda 11.10.2019.