| Heliocarpus popayanensis Kunth, 1821 |
| Heliocarpus reticulatus Rose, 1897 |
| Heliocarpus stipulatus Hochr., 1914 |
| Heliocarpus terebinthinaceus (DC.) Hochr., 1914 |
| Heliocarpus tomentosus Turcz., 1858 |
| Heliocarpus velutinus Rose, 1905 |
| Herissantia Medik., 1788 |
| Herissantia crispa (L.) Brizicky, 1968 |
| Herissantia dressleri Fryxell, 1973 |
| Hermannia L., 1753 |
| Hermannia inflata Link & Otto, 1828 |
| Hermannia palmeri Rose, 1890 |
| Hermannia pauciflora S. Watson, 1882 |
| Hermannia texana A. Gray, 1849 |
| Hermannieae DC., 1824 |
| Herrania Goudot, 1844 |
| Herrania purpurea (Pittier) R.E. Schult., 1944 |
| Hibisceae Rchb., 1832 |
| Hibiscus L., 1753 |
| Hibiscus abelmoschus L., 1753 |