Annonaceae Lai Chau Prov., Sin Ho Distr., Phin Ho Mun., Ta Genh vill., around point 22?28′26′' N, 103?16′31′' E, 1285 m. Upper slopes and ridges of limestone mountains.
Small evergreen tree. In soil pockets between rocks, wet. Rare. HAL 8785 11 Jun 2006 Photos 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.