| Justicia chlorostachya Leonard, 1958 |
| Justicia chol T.F. Daniel, 1995 |
| Justicia clinopodium A. Gray ex Greenm., 1897 |
| Justicia coahuilana T.F. Daniel, 1980 |
| Justicia cobensis Lundell, 1941 |
| Justicia coccinea Cav., 1794 |
| Justicia colorifera V.A.W. Graham, 1988 |
| Justicia comata (L.) Lam., 1785 |
| Justicia corymbulosa Bertol., 1840 |
| Justicia corynimorpha D.N. Gibson, 1972 |
| Justicia cuicatlana T.F. Daniel, 1998 |
| Justicia decurvata Hilsenb., 1990 |
| Justicia dendropila T.F. Daniel, 2003 |
| Justicia dianthera Vell., 1829 |
| Justicia durangensis (Henrickson & Hilsenb.) T.F. Daniel, 2017 |
| Justicia eburnea D.N. Gibson, 1972 |
| Justicia edgarcabrerae T.F. Daniel, Carnevali & Tapia, 2005 |
| Justicia ensiflora (Standl.) D.N. Gibson, 1972 |
| Justicia fimbriata (Nees) V.A.W. Graham, 1988 |
| Justicia flava (Forssk.) Vahl, 1791 |