Quang Nam Prov., Dai Loc Distr., Dai Hong municipality, environs of Dai Hong town around point 15°49’19”N 107°56’58”E.
Rich secondary broadleaved evergreen forest on very steep rocky slopes and cliffs composed with eroded sandstone at elev. 400-500 m a.s.l. Shrub to 2 m tall on very steep rocky slope. Occasional.