| Hosackia pinnata (Hook.) Abrams, 1944 |
| Hosackia plebeia Brandegee, 1889 |
| Hosackia prostrata Nutt. ex Torr. & A. Gray, 1838 |
| Hosackia puberula Benth., 1848 |
| Hosackia repens G. Don, 1832 |
| Hosackia rigida Benth., 1849 |
| Hosackia rigida var. nummularia M.E. Jones, 1895 |
| Hosackia rubella Nutt. ex Torr. & A. Gray, 1838 |
| Hosackia scoparia Nutt. ex Torr. & A. Gray, 1838 |
| Hosackia strigosa Nutt. ex Torr. & A. Gray, 1838 |
| Hosackia tomentella (Greene) Abrams, 1944 |
| Hosackia torreyi A. Gray, 1873 |
| Hosackia watsonii Vasey & Rose, 1889 |
| Hosackia wrightii A. Gray, 1853 |
| Hybosema Harms, 1923 |
| Hybosema ehrenbergii (Schltdl.) Harms, 1923 |
| Hybosema robustum M. Sousa & Lavin, 1992 |
| Hydrochorea Barneby & J.W. Grimes, 1996 |
| Hydrochorea leucocalyx (Britton & Rose) Iganci, M.V.B. Soares & M.P. Morim, 2022 |
| Hylodesmum H. Ohashi & R. R. Mill, 2000 |