| Hexameria Torr. & A. Gray, 1839 |
| Hypanthera Silva Manso, 1836 |
| Ibervillea Greene, 1895 |
| Ibervillea fusiformis (Lott) Kearns, 1994 |
| Ibervillea guatemalensis (Standl. & Steyerm.) Kearns, 1994 |
| Ibervillea hypoleuca (Standl.) C. Jeffrey, 1978 |
| Ibervillea lindheimeri (A. Gray) Greene, 1895 |
| Ibervillea macdougalii (Rose) Lira, Dávila & Legaspi, 2015 |
| Ibervillea maxima Lira & Kearns, 1990 |
| Ibervillea millspaughii (Cogn.) C. Jeffrey, 1978 |
| Ibervillea sonorae (S. Watson) Greene, 1895 |
| Ibervillea sonorae var. peninsularis (I.M. Johnst.) Wiggins, 1980 |
| Ibervillea sonorae var. sonorae (S. Watson) Greene, 1895 |
| Ibervillea tenuisecta (A. Gray) Small, 1903 |
| Ibervillea tripartita (Naudin) Greene, 1895 |
| Kedrostis Medik., 1791 |
| Lagenaria Ser., 1825 |
| Lagenaria leucantha (Duchesne) Rusby, 1896 |
| Lagenaria siceraria (Molina) Standl., 1930 |
| Lagenaria vulgaris Ser., 1825 |