| Xylopleurum berlandieri (Spach) Spach | Oenothera berlandieri (Spach) D.Dietr. sect. Calylophus |
| Xylopleurum deserticola Loes. | Oenothera deserticola (Loes.) Munz sect. Hartmannia |
| Xylopleurum drummondii Spach | Oenothera speciosa Nutt. sect. Hartmannia |
| Xylopleurum hirsutum Spach | Oenothera speciosa Nutt. sect. Hartmannia |
| Xylopleurum multicaule (Ruiz & Pav.) Loesener | Oenothera multicaulis Ruiz & Pav. sect. Xanthocoryne |
| Xylopleurum nuttallii Spach | Oenothera speciosa Nutt. sect. Hartmannia |
| Xylopleurum obtusifolium Spach | Oenothera speciosa Nutt. sect. Hartmannia |
| Xylopleurum roseum (Lâ€�HĂ©r. ex Aiton) Raimann | Oenothera rosea L‘Hér. ex Aiton sect. Hartmannia |
| Xylopleurum speciosum (Nutt.) Raim. | Oenothera speciosa Nutt. sect. Hartmannia |