| Homalobus flexuosus (Douglas ex Hook.) Rydb., 1906 |
| Homalobus macgregorii Rydb., 1923 |
| Homalobus stenophyllus Rydb., 1900 |
| Hosackia Benth. ex Lindl., 1829 |
| Hosackia alamosana Rose, 1891 |
| Hosackia angustifolia G. Don, 1832 |
| Hosackia anthylloides (A. Gray) Millsp., 1923 |
| Hosackia argentea Kellogg, 1863 |
| Hosackia argophylla A. Gray, 1854 |
| Hosackia argyraea Greene, 1886 |
| Hosackia bicolor Douglas ex Benth., 1829 |
| Hosackia brachycarpa Benth., 1849 |
| Hosackia bryantii Brandegee, 1889 |
| Hosackia chihuahuana S. Watson, 1888 |
| Hosackia crassifolia Benth., 1836 |
| Hosackia crassifolia var. crassifolia Benth., 1836 |
| Hosackia crassifolia var. otayensis (Isely) Brouillet, 2008 |
| Hosackia decumbens Benth., 1837 |
| Hosackia decumbens var. nevadensis S. Watson, 1876 |
| Hosackia disticha Greene, 1886 |