Compositae Working Group (CWG) (2025). Global Compositae Database. Centaurea maritima var. erectispina R.Roselló, P.P.Ferrer, E.Laguna, A.Guillén, Gómez Nav. & Peris. Accessed at: https://www.compositae.org/gcd/aphia.php?p=taxdetails&id=1387501 on 2025-09-14