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. Tree 10-15 m tall. Very common. Main co-dominant of the forest along ridge tops (about 80% of forest stands).