| Knautia arvensis rupicola (Willk.) O.BolĂłs & al. | Knautia rupicola (Willk.) Font Quer |
| Knautia arvensis subscaposa (Boiss. & Reut.) Maire | Knautia subscaposa Boiss. & Reut. |
| Knautia purpurea subscaposa (Boiss. & Reut.) Mateo & Figuerola | Knautia subscaposa Boiss. & Reut. |
| Knautia spathulata Lag. | Pterocephalus spathulatus (Lag.) Coult. |
| Knautia tomentosa (Cav.) Payot | Scabiosa turolensis Pau |