| Gynerium procerum P. Beauv., 1812 |
| Gynerium purpureum Carrière, 1866 |
| Gynerium saccharoides Bonpl., 1813 |
| Gynerium sagittatum (Aubl.) P. Beauv., 1812 |
| Hackelia Vasey ex Beal, 1896 |
| Hackelia angustifolia Vasey ex Beal, 1896 |
| Hackelochloa Kuntze, 1891 |
| Hackelochloa granularis (L.) Kuntze, 1891 |
| Hainardia Greuter, 1967 |
| Hainardia cylindrica (Willd.) Greuter, 1967 |
| Hainardieae Greuter, 1967 |
| Halochloa Griseb., 1879 |
| Harpostachys Döll, 1877 |
| Hekaterosachne Steud., 1854 |
| Heleochloa Host ex Roem., 1809 |
| Heleochloa P. Beauv., 1812 |
| Heleochloa alopecuroides (Piller & Mitterp.) Host, 1801 |
| Heleochloa juncea P. Beauv., 1812 |
| Helictotrichon Besser, 1827 |
| Helictotrichon canescens (Buckley) Clayton, 1985 |