| Rhaponticum caspium | Rhaponticum nitidum Fisch. ex DC. trib. Cardueae |
| Rhaponticum font-queri | Rhaponticum berardioides (Batt.) Hidalgo trib. Cardueae |
| Rhaponticum froedinii | Rhaponticum insigne (Boiss.) Wagenitz |
| Rhaponticum pusillum | Klasea pusilla (Labill.) Greuter & Wagenitz trib. Cardueae |