| Justicia vitzliputzli Lindau, 1904 |
| Justicia warnockii B.L. Turner, 1951 |
| Justicia wendtii T.F. Daniel, 1999 |
| Justicia wigginsii Leonard, 1942 |
| Justicia zamudioi T.F. Daniel, 2003 |
| Justicia zopilotensis Henrickson & Hiriart, 1988 |
| Justicieae Dumort., 1829 |
| Lagochilium Nees, 1847 |
| Lagochilium schiedeanum (Schltdl. & Cham.) Nees, 1847 |
| Lepidagathis Willd., 1800 |
| Lepidagathis alopecuroidea (Vahl) R. Br. ex Griseb., 1862 |
| Lepidagathis danielii Cruz Durán & J. Jiménez Ram., 2011 |
| Leptostachya Nees, 1832 |
| Leptostachya comata (L.) Nees, 1847 |
| Lophostachys Pohl, 1830 |
| Lophostachys chiapensis Acosta, 1985 |
| Lophostachys guatemalensis Donn. Sm., 1901 |
| Lophostachys soconuscana T.F. Daniel, 1993 |
| Lophostachys uxpanapensis Acosta, 1985 |
| Louteridium S. Watson, 1888 |