| Nuttallia acuminata Rydb. | Mentzelia laevicaulis (Douglas) Torr. & A.Gray |
| Nuttallia ambigua Croom | Callirhoe papaver (Cav.) A.Gray |
| Nuttallia argillosa (J.Darl.) W.A.Weber | Mentzelia argillosa J.Darl. |
| Nuttallia cordifolia Nutt. | Callirhoe triangulata (Leavenw.) A.Gray |
| Nuttallia decapetala (Pursh) Greene | Mentzelia decapetala (Pursh) Urb. |
| Nuttallia grandiflora Paxton | Callirhoe papaver (Cav.) A.Gray |
| Nuttallia gypsea Wooton & Standl. | Mentzelia humilis (Urb. & Gilg) J.Darl. |
| Nuttallia humilis (Urb. & Gilg) Rydb. | Mentzelia humilis (Urb. & Gilg) J.Darl. |
| Nuttallia involucrata Nutt. ex Torr. | Callirhoe involucrata (Torr. & A.Gray) A.Gray |
| Nuttallia munroana (Douglas ex Lindl.) Nutt. | Sphaeralcea munroana (Douglas ex Lindl.) Spach ex A.Gray |
| Nuttallia nuda (Pursh) Greene | Mentzelia nuda (Pursh) Torr. & A.Gray |
| Nuttallia papaver (Cav.) R.Graham | Callirhoe papaver (Cav.) A.Gray |
| Nuttallia triangulata (Leavenw.) Hook. | Callirhoe triangulata (Leavenw.) A.Gray |