| Croton morifolius var. sphaerocarpus (Kunth) Müll. Arg., 1865 |
| Croton muelleri J.M. Coult., 1894 |
| Croton muricatus Nutt., 1837 |
| Croton neomexicanus Müll. Arg., 1865 |
| Croton nervosus A. Rich., 1850 |
| Croton nitens Sw., 1788 |
| Croton niveus Jacq., 1760 |
| Croton oerstedianus Müll. Arg., 1865 |
| Croton ortegae Standl., 1940 |
| Croton ortholobus Müll. Arg., 1872 |
| Croton ovalifolius Vahl, 1793 |
| Croton ovalifolius var. genuinus Müll. Arg., 1866 |
| Croton pallens Sw., 1788 |
| Croton palmeri S.Watson, 1883 |
| Croton palustris Kunth, 1817 |
| Croton panamensis (Klotzsch) Müll. Arg., 1866 |
| Croton pascualii E.J. Lott & Mart. Gord., 2012 |
| Croton pedicellatus Kunth, 1817 |
| Croton pendens Lundell, 1942 |
| Croton penicillatus Vent., 1803 |