heterotypic synonyms:
Calcitrapa cucullata Moench; Centaurea crocodylioides Boiss.; Centaurea dinsmoreana Bornm.;
protologue: Sp. Pl. 2: 919 (1753)
2 217910 Centaurea crocodylium L.J. Barrellier, Pl. Galliam Hispaniam Italiam Obs.: t. 503-506, fig. 503 (1714)
2 217910 Centaurea crocodylium L.B. Maund, Bot. Gard., vol. 5 : t. 108, fig. 3 (1833) [E.D. Smith]