Centaurea incana subsp. amourensis (Pomel) Maire in Bull. Soc. Hist. Nat. Afrique N. 22: 300. 1931
Centaurea incana subsp. amourensis in Bull. Soc. Hist. Nat. Afrique N. 22: 300. 1931
is new combination for Centaurea amourensis in Bull. Soc. Sci. Phys. Algérie 11: 30. 1874
Centaurea incana subsp. amourensis in Bull. Soc. Hist. Nat. Afrique N. 22: 300. 1931