| Salvia monclovensis Fernald, 1900 |
| Salvia moniliformis Fernald, 1910 |
| Salvia monochila Donn. Sm., 1897 |
| Salvia moranii B.L. Turner, 2010 |
| Salvia mucidiflora Fernald, 1907 |
| Salvia muelleri Epling, 1938 |
| Salvia multiramea Fernald, 1900 |
| Salvia multispicata Rusby, 1920 |
| Salvia munzii Epling, 1935 |
| Salvia muralis Fernald, 1907 |
| Salvia muscarioides Fernald, 1900 |
| Salvia myriantha Epling, 1939 |
| Salvia nana Kunth, 1818 |
| Salvia nana var. eglandulosa Epling, 1938 |
| Salvia natalis Epling, 1939 |
| Salvia nelsonii Fernald, 1900 |
| Salvia neohispanica Briq., 1898 |
| Salvia nepetoides Kunth, 1818 |
| Salvia nervata M. Martens & Galeotti, 1844 |
| Salvia neurepia Fernald, 1900 |