| Lepechinia ganderi Epling, 1948 |
| Lepechinia glomerata Epling, 1948 |
| Lepechinia hastata (A. Gray) Epling, 1940 |
| Lepechinia hastata subsp. hastata (A. Gray) Epling, 1940 |
| Lepechinia hirsuta (Epling) Epling, 1935 |
| Lepechinia humilis Epling, 1935 |
| Lepechinia leucophylloides (Ramamoorthy, Hiriart & Medrano) B.T. Drew, Cacho & Sytsma, 2014 |
| Lepechinia mecistandra (Donn. Sm.) H.K. Moon, 2012 |
| Lepechinia mexicana (S. Schauer) Epling, 1940 |
| Lepechinia nelsonii (Fernald) Epling, 1940 |
| Lepechinia procumbens Benth., 1834 |
| Lepechinia schiedeana (Schltdl.) Vatke, 1875 |
| Lepechinia spicata Willd., 1804 |
| Lepechinia yecorana Henrickson, Fishbein & T. Van Devender, 2011 |
| Leucadeae Scheen & Ryding, 2010 |
| Majorana Mill., 1754 |
| Majorana hortensis Moench, 1794 |
| Marrubieae Vis., 1847 |
| Marrubium L., 1753 |
| Marrubium hamatum Kunth, 1818 |