| Marshallia caespitosa Nutt. ex DC. | | a | | Marshallia caespitosaNutt. ex DC. | |
| Marshallia grandiflora Beadle & F. E. Boynton | | a | | Marshallia grandifloraBeadle & F. E. Boynton | |
| Marshallia mohrii Beadle & F. E. Boynton | | a | | Marshallia mohriiBeadle & F. E. Boynton | |
| Marshallia obovata (Walter) Beadle & F. E. Boynton | | a | | Marshallia obovata(Walter) Beadle & F. E. Boynton | |
| Marshallia legrandii Weakley | | a | | Marshallia legrandiiWeakley | |