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. Lithophyte on large shady mossy boulders on very steep humid rocky slope. Not common.