| Justicia linearis B.L. Rob. & Greenm., 1895 |
| Justicia longii Hilsenb., 1990 |
| Justicia lucindae T.F. Daniel & V.W. Steinm., 2007 |
| Justicia lundellii Leonard, 1936 |
| Justicia lutea Sessé & Moc., 1887 |
| Justicia luzmariae T.F. Daniel, Carnevali & Tapia, 2005 |
| Justicia macrantha Benth., 1841 |
| Justicia madrensis T.F. Daniel, 1995 |
| Justicia magniflora (Blake) D.N. Gibson, 1972 |
| Justicia masiaca T.F. Daniel, 1995 |
| Justicia maya T.F. Daniel, 2007 |
| Justicia medranii Henrickson & Hiriart, 1988 |
| Justicia metallica Lindau, 1898 |
| Justicia mexicana Rose, 1895 |
| Justicia mirandae T.F. Daniel, 1995 |
| Justicia mollis Pohl ex Nees, 1847 |
| Justicia multicaulis Donn. Sm., 1909 |
| Justicia nelsonii (Greenm.) T.F. Daniel, 2002 |
| Justicia nevlingii Wassh. & T.F. Daniel, 1995 |
| Justicia novogaliciana T.F. Daniel, 1999 |