This xeric - mesoxeric species is concentrated in
western Transylvania and the adjacent calcareous massifs from
Trascau and Metaliferi mountains, Poiana Ruscai Mountains, Danube
defile, Oltenia Sucarpathians. There is
indicated an isolated island in Buzau Subcarpathians at Merei.
Rapa Rosie natural reservation area, near Sebes, Alba county,
June 2008.