Ha Giang prov., Quan Ba distr., Cao Ma Po commune, Chin Chu Lin village, around point 23°04ʹ47.2ʺN 104°48ʹ55.6ʺE, steep slopes and flattened top of mountain composed with sandstone at elevation 1800–1950 m a.s.l. Primary evergreen broad-leaved very humid forest. Lithophytic fern on mossy shady cliff. Not common. 21 October 2018, L. Averyanov, Nguyen Sinh Khang, T. Maisak, Truong Duc Thieu, VR 1129 (HN, LE01055360). This species is very close to Polystichum minutissimum Li Bing Zhang & H.He (= Polystichum hagiangense Li Bing Zhang & N.T.Lu & Liang Zhang).