| Acanthophora Dunal, 1813 |
| Acnistus Schott, 1829 |
| Acnistus arborescens (L.) Schltdl., 1832 |
| Acnistus benthami Miers, 1845 |
| Acnistus macrophyllus (Benth.) Standl., 1924 |
| Alatae Goodsp., 1945 |
| Alkekengi Mill., 1754 |
| Alkekengi pubescens Moench, 1794 |
| Anarrhichomenum Bitter, 1912 |
| Angulatae (Rydb.) M.Y. Menzel, 1951 |
| Athenaea Sendtn., 1846 |
| Athenaea cernua Donn. Sm., 1909 |
| Athenaea locuples Standl. & Steyerm., 1940 |
| Athenaea macrocardia Standl. & Steyerm., 1940 |
| Athenaea nelsonii Fernald, 1900 |
| Athenaea viscida (Standl.) Standl. & Steyerm., 1943 |
| Athenaea viscosa (Schrad.) Fernald, 1900 |
| Atropa L., 1753 |
| Atropa arborescens L., 1756 |
| Atropa physalodes L., 1753 |