| Justicia furcata Jacq., 1797 |
| Justicia furcata var. terminalis (DC.) Greenm., 1907 |
| Justicia gonzalezii (Greenm.) Henrickson & Hiriart, 1988 |
| Justicia guerrerensis T.F. Daniel, 2024 |
| Justicia guttata Wall., 1830 |
| Justicia haematodes Schltdl., 1832 |
| Justicia hedrenii J.-P.Lebrun & Stork, 1991 |
| Justicia henricksonii T.F. Daniel, 1980 |
| Justicia herpetacanthoides Leonard, 1942 |
| Justicia heterophylla Cham. & Schltdl., 1830 |
| Justicia hexangularis Roem. & Schult., 1817 |
| Justicia hians (Brandegee) Brandegee, 1915 |
| Justicia hilsenbeckii T.F. Daniel, 2004 |
| Justicia hintoniorum G.L. Nesom, 1992 |
| Justicia huacanensis T.F. Daniel & V.W. Steinm., 2007 |
| Justicia hyssopifolia Gouan ex Nees, 1847 |
| Justicia hyssopus (Nees) Lindau, 1895 |
| Justicia imbricata Vahl, 1797 |
| Justicia inaequalis Benth., 1841 |
| Justicia incana (Nees) Hemsl., 1882 |