| Croton hookerianus Baill., 1858 |
| Croton huajuapanensis Mart. Gord. & Cruz Durán, 2000 |
| Croton humilis L., 1759 |
| Croton hypoleucus Schltdl., 1847 |
| Croton icche Lundell, 1940 |
| Croton incanus Kunth, 1817 |
| Croton itzaeus Lundell, 1940 |
| Croton jucundus Brandegee, 1905 |
| Croton jutiapensis Croizat, 1942 |
| Croton lagunensis M.E. Jones, 1933 |
| Croton lasiopetaloides Croizat, 1942 |
| Croton leucophyllus Müll. Arg., 1865 |
| Croton leucophyllus var. trisepalis A.M. Ferguson, 1901 |
| Croton liebmannii Müll. Arg., 1866 |
| Croton limnocharis Croizat, 1942 |
| Croton lindheimeri (Engelm. & A. Gray) Alph. Wood, 1865 |
| Croton lindheimerianus Scheele, 1853 |
| Croton lindquistii V.W. Steinm., 2014 |
| Croton lobatus L., 1753 |
| Croton lobatus f. crispus Müll. Arg., 1866 |