CCDB → Angiosperms → Apiaceae → Osmorhiza
| Taxon name | Status | Median (n) |
| Osmorhiza aristata Makino & Jabe | Accepted | 11 |
| Osmorhiza brachypoda Torr. ex Durand | Accepted | 11 |
| Osmorhiza chilensis Hook. & Arn. | Accepted | 11 |
| Osmorhiza depauperata Phil. | Accepted | 11 |
| Osmorhiza longistylis (Torr.) DC. | Accepted | 11 |
| Osmorhiza mexicana Griseb. | Accepted | 11 |
| Osmorhiza aristata (Thunb.) Rydb. | Unresolved | 11 |
| Osmorhiza claytonii (Michx.) C. B. Clarke | Synonym of Osmorhiza aristata var. aristata | 11 |
| Osmorhiza chilensis None | Synonym of Osmorhiza chilensis Hook. & Arn. | 11 |
| Osmorhiza occidentalis None | Synonym of Osmorhiza occidentalis (Nutt.) Torr. | 11 |