Centaurea beltranii (Pau) Blanca (original description)
Centaurea boissieri subsp. atlantica (Font Quer) Blanca (original description)
Centaurea dufourii (Dostál) Blanca accepted as Centaurea resupinata subsp. dufourii (Dostál) Greuter (original description)
Centaurea dufourii subsp. lagascae (Nyman) Blanca accepted as Centaurea resupinata subsp. lagascae (Nyman) Fern.Casas & Susanna (original description)
Centaurea dufourii subsp. resupinata (Coss.) Blanca accepted as Centaurea resupinata Coss. (original description)
Centaurea dufourii subsp. rifana (Emb. & Maire) Blanca accepted as Centaurea resupinata subsp. rifana (Emb. & Maire) Breitw. & Podlech (original description)
Centaurea dufourii var. humilis (Pau) Blanca (original description)
Centaurea pinae var. integrifolia (Willk.) Blanca (original description)
Centaurea sect. Willkommia Blanca (original description)