| Melanosinapis K.F. Schimp. & Spenn., 1829 |
| Mesoreanthus Greene, 1904 |
| Microcardamum O.E. Schulz, 1928 |
| Microsisymbrium O.E. Schulz, 1924 |
| Microthlaspi F.K. Mey., 1973 |
| Mitophyllum Greene, 1904 |
| Monoploca Bunge, 1845 |
| Mostacillastrum O.E. Schulz, 1924 |
| Mostacillastrum arcuatum (Rollins) Al-Shehbaz, 2012 |
| Mostacillastrum gracielae (M. Martínez & L. Hern.) Al-Shehbaz & M. Martínez, 2014 |
| Mostacillastrum incisum (Rollins) Al-Shehbaz, 2012 |
| Mostacillastrum longipes (Rollins) Al-Shehbaz, 2012 |
| Mostacillastrum purpusii (Brandegee) Al-Shehbaz, 2012 |
| Mostacillastrum retrofractum (Rollins) Al-Shehbaz, 2012 |
| Mostacillastrum vaseyi (J. M. Coult.) Al-Shehbaz, 2012 |
| Mostacillastrum versicolor (Brandegee) Al-Shehbaz, 2012 |
| Myagrum L., 1753 |
| Myagrum rugosum L., 1753 |
| Nasturtioides Medik., 1792 |
| Nasturtiolum Medik., 1792 |