FLORA OF VIETNAM
Asclepiadaceae
Hoya vangviengiensis Rodda & Simonsson

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Can Ty commune, Lung Vay village, around point 23°06ʹ02.6ʺN 105°03ʹ04.5ʺE, 1200-1305 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen broad-leaved humid forest on steep rocky slopes near mountain tops. Semi-woody vine 3-4 m long in open place. Flowers, fragrant, white, pinkish below. Occasional. 15 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 213 (HN, LE01058153, LE01067291). Det.: M. Rodda 11.10.2019.