Orchidaceae

Eria boniana (Gagnep.) Tang & F.T. Wang

Ha Giang prov., Quan Ba distr., Bat Dai Son Nature Reserve, Can Ty commune, Dau Cau 1 village, around point N 23.08650º E105.02312º, elevation of 750-900 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 herb about 15-20 cm, flower dull yellowish white, lip with purple wrinkles, common, 14 March 2019, Nguyen Sinh Khang et al., NSK 1207.