| Galpinsia hartwegii (Benth.) Britton | Oenothera hartwegii Benth. sect. Calylophus |
| Galpinsia lavandulifolia (Torr. & A.Gray) Small | Oenothera lavandulifolia Torr. & A.Gray sect. Calylophus |
| Galpinsia tubicula (A.Gray) Small | Oenothera tubicula A.Gray sect. Calylophus |