| Zizia hallii (A.Gray) J.M.Coult. & Rose | Cymopterus hallii (A.Gray) B.L.Turner |
| Zizia stricklandii (J.M.Coult. & Rose) Koso-Pol. | Tauschia stricklandii (J.M.Coult. & Rose) Mathias |
| Zizia tortuosa (Waldst. & Kit.) Roth | Odontarrhena tortuosa (Waldst. & Kit.) C.A.Mey. |