Quang Ninh Prov., Van Don Distr., Ha Long Comm., Tra Than mt., around point 21°06′01” N, 107°32′38” E, 20 m.
Collected in heavily logged primary closed evergreen forests on slopes of granite lowland mountains. Evergreen tree, up to 20 x 0,5 m; bearing old seeds. HAL 11231 30 Sep 2007 Coll.: P.K. Loc & N.T.Vinh
Grant from MOST, Council for Natural Science, Section of Life Sciences (6.077.06), Vietnam