| Mariosousa russelliana (Britton & Rose) Seigler & Ebinger, 2006 |
| Mariosousa salazarii (Britton & Rose) Seigler & Ebinger, 2006 |
| Mariosousa sericea (M. Martens & Galeotti) Seigler & Ebinger, 2006 |
| Mariosousa usumacintensis (Lundell) Seigler & Ebinger, 2006 |
| Mariosousa willardiana (Rose) Seigler & Ebinger, 2006 |
| Martiusia J.A. Schultes & J.H. Schultes, 1822 |
| Martiusia mariana (L.) Small, 1933 |
| Medicago L., 1753 |
| Medicago apiculata Willd., 1802 |
| Medicago denticulata Willd., 1802 |
| Medicago grandiflora (Grossh.) Vassilcz., 1946 |
| Medicago hispida Gaertn., 1791 |
| Medicago lappacea Desr., 1792 |
| Medicago lupulina L., 1753 |
| Medicago nigra Krock., 1790 |
| Medicago polia (Brand) Vassilcz., 1946 |
| Medicago polycarpa Willd., 1809 |
| Medicago polymorpha L., 1753 |
| Medicago polymorpha var. polymorpha L., 1753 |
| Medicago polymorpha var. vulgaris (Benth.) Shinners, 1956 |