Centaurea thirkei Sch. Bip. in Linnaea 19: 314. 1846
Centaurea thirkei in Linnaea 19: 314. 1846
is basionym for Cyanus thirkei in Preslia 45: 145. 1973
is basionym for Centaurea napulifera subsp. thirkei, Stud. Centaur. Bulg.: 22. 1935
Centaurea thirkei in Linnaea 19: 314. 1846