Quang Binh Prov., Minh Hoa Distr., Thuong Hoa municipality, around point 17°41′28”N 105°53′42.7”E.
Wet primary evergreen broad-leaved forest on shady humid rocky slope of narrow stream canyon composed with solid crystalline limestone at elevation around 600 m a.s.l.
Along stream humid valley, around elev. 582 m a.s.l.
Tree 30-35(40) m tall. Common. Important forest co-dominant on stream valley slopes.