Vietnam, Quang Binh Prov., Minh Hoa Distr., Dan Hoa municipality, Vietnam-Laotian border, to the N of Cha Lo border entrance, point 17°43′25″N 105°46′07″E.
Secondary broad-leaved forest along stream canyon composed with solid eroded limestone and soft stratified dark brown shale at elevation 350 m a.s.l.
Tree to 15 m tall. Flowers yellowish. Occasional.
HAL 11825 22 April 2008 Coll.: L.Averyanov, P.K.Loc, N.T.Vinh, N.S.Khang