Vietnam, Quang Tri Prov., Huong Hoa Distr., Huong Phung Municipality, vicinities of Sa Mui pass, around point 16є48’36’’N 106є34’44’’E at elevation about 1400-1500 m a.s.l. Primary broad-leaved evergreen montane cloudy forest along main ridge of Sa Mui Mountain. Lithophytic rosulate herb on vertical open cliffs. Locally very common, usual co-dominant of lithophytic herb communities on open vertical cliffs.