Centaurea spinosa subsp. cycladum (Heldr.) Hayek in Repert. Spec. Nov. Regni Veg. Beih. 30(2): 779. 1931
Centaurea spinosa subsp. cycladum in Repert. Spec. Nov. Regni Veg. Beih. 30(2): 779. 1931
is new combination for Centaurea cycladum, Herb. Graec. Norm.: [in schedis] No. 1652. 1902
Centaurea spinosa subsp. cycladum in Repert. Spec. Nov. Regni Veg. Beih. 30(2): 779. 1931