Laos, Khammoune prov., Boualapha distr., Nong Seng village, Vang Phae Lay mountain, around point 17°31′02.7″N, 105°47′17.2″E.
Primary and secondary dry evergreen and semideciduous broad-leaved forest on sandy alluvial terrace and slopes of river valley between karstic limestone hills at 180-220 m a.s.l.
Treelet or shrub 3-4 m tall along open stream slopes among secondary shrubs. Flowers dull light yellow. Not rare.
11 May 2018, L. Averyanov, Khang Sinh Nguyen, T. Maisak, Littideth Xaiyavongsa, Siphanom Keovankham, AL 960.