| Trigonophyllae Goodsp., 1945 |
| Tzeltalia E. Estrada & M. Martínez, 1998 |
| Tzeltalia amphitricha (Bitter) E. Estrada & M. Martínez, 1998 |
| Tzeltalia calidaria (Standl. & Steyerm.) E. Estrada & M. Martínez, 1998 |
| Tzeltalia esenbeckii M. Martínez & O. Vargas, 2005 |
| Viscosa (Rydb.) Menzel, 1951 |
| Withania Pauquy, 1825 |
| Withania melanocystis B.L. Rob., 1891 |
| Withania sordida Dunal, 1852 |
| Witheringia L'Hér., 1788 |
| Witheringia affinis (C.V. Morton) Hunz., 1969 |
| Witheringia ciliata Kunth, 1818 |
| Witheringia coccoloboides (Dammer) Hunz., 1969 |
| Witheringia cuneata (Standl.) Hunz., 1969 |
| Witheringia diversifolia Klotzsch, 1844 |
| Witheringia fournieri Van Heurck & Müll. Arg., 1870 |
| Witheringia macrophylla Kunth ex Dunal, 1816 |
| Witheringia meiantha (Donn. Sm.) Hunz., 1969 |
| Witheringia mexicana (B.L. Rob.) Hunz., 1969 |
| Witheringia nelsonii (Fernald) Hunz., 1969 |