| Lomatium artemisiarum | Lomatium macrocarpum (Hook. & Arn.) L.M.Coult. & Rose |
| Lomatium ellipticum | Lomatium macrocarpum (Hook. & Arn.) L.M.Coult. & Rose |
| Lomatium frenchii | Lomatium watsonii (J.M.Coult. & Rose) J.M.Coult. & Rose |
| Lomatium chandleri | Lomatium utriculatum (Nutt.) J.M.Coult. & Rose |
| Lomatium jonesii | Lomatium macdougalii J.M.Coult. & Rose |
| Lomatium lapidosum | Cymopterus lapidosus (M.E.Jones) M.E.Jones |
| Lomatium leibergii | Lomatium roseanum Cronquist |
| Lomatium megarrhizum | Lomatium nuttallii (A.Gray) J.F.Macbr. |
| Lomatium nelsonianum | Lomatium hallii (S.Watson) J.M.Coult. & Rose |
| Lomatium orogenioides | Lomatium tenuissimum (Geyer ex Hook.) M.A.Feist & Plunkett |
| Lomatium pubescens | Lomatium foeniculaceum (Nutt.) J.M.Coult. & Rose |
| Lomatium purpureum | Lomatium columbianum Mathias & Constance |
| Lomatium vaseyi | Lomatium utriculatum (Nutt.) J.M.Coult. & Rose |
| Lomatium villosum | Lomatium foeniculaceum (Nutt.) J.M.Coult. & Rose |