| Justicia oaxacana (Greenm.) T.F. Daniel, 1998 |
| Justicia ovata (Walter) Lindau, 1900 |
| Justicia pacifica (Oerst.) Hemsl., 1882 |
| Justicia palmeri Rose, 1890 |
| Justicia paniculata Rose, 1895 |
| Justicia paucifolia T.F. Daniel, 1998 |
| Justicia peckii (Blake) Standl., 1936 |
| Justicia pectinata L., 1760 |
| Justicia pectoralis Jacq., 1760 |
| Justicia pedicellata D.N. Gibson, 1972 |
| Justicia phlebodes Leonard & Gentry, 1948 |
| Justicia pilifera D.N. Gibson, 1972 |
| Justicia pilosella (Nees) Hilsenb., 1990 |
| Justicia polysperma Roxb., 1820 |
| Justicia pringlei B.L. Rob., 1891 |
| Justicia pumila F. Dietr., 1803 |
| Justicia purpusii (Brandegee) D.N. Gibson, 1972 |
| Justicia quadrifida Vahl, 1804 |
| Justicia ramosa (Oerst.) V.A.W. Graham, 1988 |
| Justicia reflexiflora Vahl, 1804 |