| Jatropha purpurea Rose, 1895 |
| Jatropha riojae Miranda, 1942 |
| Jatropha rotundifolia Müll. Arg., 1865 |
| Jatropha rufescens Brandegee, 1910 |
| Jatropha rzedowskii J. Jiménez Ram., 1985 |
| Jatropha sotoi-nunyezii Fern. Casas & E. Martínez, 2008 |
| Jatropha standleyi Steyerm., 1940 |
| Jatropha staphysagrifolia Mill., 1768 |
| Jatropha stephani J. Jiménez Ram. & Mart. Gord., 1991 |
| Jatropha stimulosa Michx., 1803 |
| Jatropha stipulata Vell., 1831 |
| Jatropha stipulosa Steud., 1840 |
| Jatropha sympetala S.F. Blake & Standl., 1920 |
| Jatropha tehuantepecana J. Jiménez Ram. & A. Campos, 1994 |
| Jatropha tepiquensis Costantin & Gallaud, 1906 |
| Jatropha tlalcozotitlanensis J. Jiménez Ram., 1985 |
| Jatropha tuberosa Elliott, 1859 |
| Jatropha tubulosa Müll. Arg., 1865 |
| Jatropha tubulosa var. quinqueloba Müll. Arg., 1865 |
| Jatropha tubulosa var. septemloba Müll. Arg., 1865 |