| Alectoroctonum Schltdl., 1846 |
| Alectoroctonum cotinifolium (L.) Schltdl., 1847 |
| Alectoroctonum dilatatum Klotzsch & Garcke, 1860 |
| Alectoroctonum ovatum Schltdl., 1847 |
| Alectoroctonum scandens (Kunth) Klotzsch & Garcke, 1860 |
| Alectoroctonum scotanum (Schltdl.) Schltdl., 1847 |
| Alectoroctonum wrightii (Torr. & A. Gray) Klotzsch & Garcke, 1860 |
| Alectoroctonum yavalquahuitl Schltdl., 1846 |
| Aleurites J.R. Forst. & G. Forst., 1775 |
| Aleurites moluccana (L.) Willd., 1805 |
| Aleuritideae Hurus., 1954 |
| Aleuritinae G.L. Webster, 1975 |
| Alevia Baill., 1858 |
| Alevia leptostachya Baill., 1858 |
| Anaua Miq., 1861 |
| Angelandra Endl., 1843 |
| Anisophyllum Haw., 1812 |
| Anisophyllum berteroanum (Balb. ex Spreng.) Klotzsch & Garcke, 1860 |
| Anisophyllum crassipes Klotzsch & Garcke, 1860 |
| Anisophyllum densiflorum Klotzsch & Garcke, 1860 |