| Hemiphylacus S. Watson, 1883 |
| Hemiphylacus alatostylus L. Hern., 1995 |
| Hemiphylacus hintoniorum L. Hern., 1995 |
| Hemiphylacus latifolius S. Watson, 1883 |
| Hemiphylacus mahindae L. Hern., 1995 |
| Hemiphylacus novogalicianus L. Hern., 1995 |
| Hesperaloe Engelm., 1871 |
| Hesperaloe campanulata G.D. Starr, 1997 |
| Hesperaloe chiangii (G.D. Starr) B.L. Turner, 2002 |
| Hesperaloe davyi Baker, 1898 |
| Hesperaloe engelmannii Krauskopf ex Baker, 1880 |
| Hesperaloe funifera (K. Koch) Trel., 1902 |
| Hesperaloe funifera subsp. chiangii G.D. Starr, 1997 |
| Hesperaloe funifera subsp. funifera (K. Koch) Trel., 1902 |
| Hesperaloe malacophylla Hochstätter & Mart.-Aval., 2010 |
| Hesperaloe nocturna Gentry, 1967 |
| Hesperaloe parviflora (Torr.) Coult., 1894 |
| Hesperaloe parviflora subsp. parviflora (Torr.) Coult., 1894 |
| Hesperaloe tenuifolia G.D. Starr, 1997 |
| Hesperaloe yuccifolia (A. Gray) Engelm., 1871 |