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CCDB → Angiosperms → Apiaceae → Thapsia
| Taxon name | Status | Median (n) |
| Thapsia garganica L. | Accepted | 11 |
| Thapsia villosa L. | Accepted | 22 |
| Thapsia decipiens Hook. | Unresolved | 11 |
| Thapsia gymnesica Rosselló & A. Pujadas | Unresolved | 11 |
| Thapsia minor Hoffmanns. & Link | Unresolved | 11 |
| Thapsia pelagica Brullo & Guglielmo & Pasta & Pavone & Salmeri | Unresolved | 11 |