Vietnam, Thua Thien – Hue Prov., A Luoi Distr., Huong Nguyen Municipality, about 8 km to the N of Tra Ve forest protection station, around point 16°17′17′'N, 107°26′40′'E at elevation about 240 m a.s.l.
Secondary closed evergreen broad-leaved forest on steep hill and mountain slopes composed with shale along stream valley.
Treelet 3-4 m tall along stream side. Flowers light green. Common.