| Hibiscus sabdariffa L., 1753 |
| Hibiscus schizopetalus (Dyer) Hook. f., 1880 |
| Hibiscus sororius L., 1775 |
| Hibiscus spiralis Cav., 1793 |
| Hibiscus striatus Cav., 1787 |
| Hibiscus syriacus L., 1753 |
| Hibiscus tenorii Fryxell, 1989 |
| Hibiscus tiliaceus L., 1753 |
| Hibiscus tubiflorus DC., 1824 |
| Hibiscus umbellatus Sessé & Moc., 1894 |
| Hibiscus uncinellus DC., 1824 |
| Hibiscus violaceus Brandegee, 1905 |
| Hibiscus zygomorphus Fryxell & S.D. Koch, 1987 |
| Hochreutinera Krapov., 1970 |
| Hochreutinera amplexifolia (DC.) Fryxell, 1976 |
| Horsfordia A. Gray, 1887 |
| Horsfordia alata (S. Watson) A. Gray, 1887 |
| Horsfordia exalata Fryxell, 1985 |
| Horsfordia newberryi (S. Watson) A. Gray, 1887 |
| Horsfordia rotundifolia S. Watson, 1889 |