Lai Chau Prov., Sin Ho Distr., Phin Ho Mun., Ta Genh vill., around point 22?27′24′' N, 103?19′13′' E, 1090-1200 m. Slopes of non-limestone mountains.
Evergreen big trees, sometimes clustered. Regeneration by seeds very well. HAL 8823 13 Jun 2006 Collectors: P.K. Loc, N.T. Vinh, N.S. Khang, P.N. Quan and L.H. Phong.
Collected with the financial support from the Program of Basic Researchs in Life Sciences, Vietnam.