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CCDB → Angiosperms → Apiaceae → Thaspium
| Taxon name | Status | Median (n) |
| Thaspium barbinode (Michx.) Nutt. | Accepted | 11 |
| Thaspium pinnatifidum (Buckley) A. Gray | Accepted | 11 |
| Thaspium trifoliatum (L.) A. Gray | Accepted | 11 |
| Thaspium trifoliatum var. trifoliatum | Synonym of Thaspium trifoliatum (L.) A. Gray | 11 |