Centaurea nicaeensis subsp. walliana Maire in Bull. Soc. Hist. Nat. Afrique N. 29: 425. 1938
Centaurea nicaeensis subsp. walliana in Bull. Soc. Hist. Nat. Afrique N. 29: 425. 1938
Taxon for this nameCentaurea nicaeensis subsp. walliana in Bull. Soc. Hist. Nat. Afrique N. 29: 425. 1938