FLORA OF VIETNAM Annonaceae Gen.sp. Dien Bien Prov., Tua Chua Distr., Xa Nhe Municipality, around point 21°52′35”N 103°24′21”E.
Highly degraded primary evergreen broadleaved dry forest on very steep slopes and on tops of remnant mountains composed with solid limestone at elevation 850-1050 m a.s.l.
Tree to 15 m tall. Flowers white, later yellow. Very common.