Gesneriaceae

Boea sp.

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Can Ty commune, Lung Vay village, around point 23º06ʹ02.6ʺN 105º03ʹ04.5ʺE, 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. Lithophytic erect herb to 0.5 m tall on open rocks on mountain top. Flowers blue. Common. 15 April 2018, L. Averyanov, Nguyen Sinh Khang, Chuong Quang Ngan, T. Maisak, VR 221.