Quang Nam Prov., Dai Loc Distr., Dai Hong municipality, environs of Dai Hong town around point 15°49′44”N 107°57′19”E.
Remnants of primary and secondary dry broadleaved evergreen forest on rocky sandy uplifted plateau composed with eroded sandstone at elev. about 550 m a.s.l.
Shrub or treelet 1.5-2 m tall among wet mossy shady boulders along small stream. Flowers white. Not common.