FLORA OF VIETNAM Polypodiaceae s.l. Polystichum sp.
Nghe An Prov., Ky Son Distr., Na Ngoi Municipality, Phu Kha village, eastern slopes of Phu Xai Lai Leng mountain system.
Primary broad-leaved cloud humid forest on steep mountain slopes on granite around Phu Xai Lai Leng Mountain peak at elevation about 2700 m a.s.l. around point 19°11′52.2″N 104°10′54.7″E.
Terrestrial fern on steep shady rocky slope. Common.