Son La Prov., Yen Chau Distr., Muong Lum Municipality, Long Phuong village around point 21°01′10”N 104°29′20”E.
Open secondary highly degraded forest on steep alluvial slope at the base of remnant hills composed with highly eroded solid limestone at elevation about 800 m a.s.l.
Tree about 15 m tall on rather open slope. Fruits velvety brown, spherical, to 10 cm in diam. Not common.
CPC 1844 31 March 2011 Photos. Coll.: L.Averyanov, N.T.Hiep, T.B.Ngan.