| Lavauxia flava | Oenothera flava (A.Nelson) Garrett sect. Lavauxia |
| Lavauxia howardii | Oenothera howardii (A.Nelson) M.E.Jones ex Prain sect. Megapterium |
| Lavauxia tubifera | Oenothera tubifera Ser. sect. Ravenia |
| Lavauxia flava | Oenothera flava (A.Nelson) Garrett sect. Lavauxia |
| Lavauxia howardii | Oenothera howardii (A.Nelson) M.E.Jones ex Prain sect. Megapterium |
| Lavauxia tubifera | Oenothera tubifera Ser. sect. Ravenia |