Laos, Khammouane prov., Boualapha distr., Nong Seng village, southern sandstone slopes of Phou Chuang (Poujeuang) Mt. around point 17°33′14.4″N, 105°47′50.4″E.
Primary semideciduous and evergreen broad-leaved dry lowland forest at elev. 300-400 m a.s.l.
Tree 6-8 m tall. Very common, usual co-dominant of the second forest stratum at 200-400 m a.s.l.
6 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 740.