FLORA OF VIETNAM
Begoniaceae
Begonia cavaleriei H. Lév.

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, 1100-1290 m a.s.l., karstic, highly eroded mountains composed of solid marble-like limestone, primary evergreen coniferous humid forest with Pseudotsuga sinensis on rocky mountain tops and ridges. Lithophytic herb on mossy vertical cliff. Leaves and petioles green (dirty purple-pink at the base), flowers pink, anthers yellow. Very common. 13 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 090 (HN, LE01054057, LE01054058).