| Janipha aesculifolia Kunth, 1817 |
| Janipha manihot (L.) Kunth, 1817 |
| Jatropha L., 1753 |
| Jatropha acerifolia Salisb., 1796 |
| Jatropha aconitifolia Mill., 1768 |
| Jatropha aconitifolia var. genuina Müll. Arg., 1866 |
| Jatropha aconitifolia var. multipartita Müll. Arg., 1866 |
| Jatropha aconitifolia var. palmata (Willd.) Müll. Arg., 1866 |
| Jatropha aconitifolia var. papaya (Medik.) Pax, 1910 |
| Jatropha adenophila Pax & K. Hoffm., 1914 |
| Jatropha afrocurcas Pax, 1909 |
| Jatropha alamanii Müll. Arg., 1865 |
| Jatropha andrieuxii Müll. Arg., 1865 |
| Jatropha angustidens (Torr.) Müll. Arg., 1866 |
| Jatropha antisyphilitica Speg., 1883 |
| Jatropha arizonica I.M. Johnst., 1923 |
| Jatropha bartlettii Wilbur, 1954 |
| Jatropha berlandieri Torr., 1858 |
| Jatropha bullockii E.J. Lott, 1984 |
| Jatropha canescens (Benth.) Müll. Arg., 1866 |