FLORA OF VIETNAM
Asclepiadaceae
Periploca purpurea Kerr

Ha Giang prov., Quan Ba distr., Bat Dai Son commune, Bat Dai Son Nature Reserve, San Chu village, around point 23°08ʹ55.1ʺN 104°59ʹ45.7ʺE, 1000-1200 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary and partially degraded evergreen broad-leaved humid forest on rocky mountain slopes. Herbaceous to semi-woody vine 6-8 m long in rather open place, flowers purple-violet. Not rare. 13 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 084 (HN, LE01054052, LE01054053). Det.: M. Rodda 11.10.2019.