Centaurea simplicicaulis Boiss. & A. Huet in Boissier, Diagn. Pl. Orient., ser. 2, 3: 67. 1856
Centaurea simplicicaulis in Boissier, Diagn. Pl. Orient., ser. 2, 3: 67. 1856
is basionym for Psephellus simplicicaulis in Willdenowia 30: 36. 2000
Centaurea simplicicaulis in Boissier, Diagn. Pl. Orient., ser. 2, 3: 67. 1856