Quang Binh Prov., Minh Hoa Distr., Thuong Hoa Comm., Mo O O O Vill., Ruc Lan Valley, 17°40′52″N, 105°55′09″E, 260-270 m. Dominant in secondary broad-leaved woodlands and forests from stream banks to foot of shale mts., regenerated on abandoned slash and burn areas.
Small evergreen trees, up to 7 x 0.25 m or more. Common.