| Salvia lozanoi Fernald, 1907 |
| Salvia lupulina Fernald, 1900 |
| Salvia lycioides A. Gray, 1886 |
| Salvia macellaria Epling, 1939 |
| Salvia madrensis Seem., 1856 |
| Salvia madrigalii Zamudio & Bedolla, 2017 |
| Salvia malvifolia Epling & Játiva, 1963 |
| Salvia manantlanensis Ramamoorthy, 1987 |
| Salvia marci Epling, 1933 |
| Salvia martinicensis Sessé & Moc., 1893 |
| Salvia matudae Epling, 1939 |
| Salvia mazatlanensis Fernald, 1900 |
| Salvia mcvaughii Bedolla, Lara Cabrera & Zamudio, 2011 |
| Salvia meera Ramamoorthy ex J.G. González & Santana Mich., 2012 |
| Salvia melissodora Lag., 1816 |
| Salvia mellifera Greene, 1892 |
| Salvia membranacea Benth., 1833 |
| Salvia mendax Epling, 1938 |
| Salvia menthiformis Fernald, 1900 |
| Salvia mexiae Epling, 1939 |