Centaurea gracillima Wagenitz in Notes Roy. Bot. Gard. Edinburgh 33: 225. 1974
Centaurea gracillima in Notes Roy. Bot. Gard. Edinburgh 33: 225. 1974
is basionym for Psephellus gracillimus in Willdenowia 30: 34. 2000
Centaurea gracillima in Notes Roy. Bot. Gard. Edinburgh 33: 225. 1974