| Hedysarum uncinatum Jacq., 1798 |
| Hedysarum vaginale L., 1753 |
| Hedysarum venustulum Kunth, 1823 |
| Hedysarum viridiflorum L., 1753 |
| Hedysarum volubile Sessé & Moc., 1894 |
| Helicotropis A. Delgado, 2011 |
| Helicotropis linearis (Kunth) A. Delgado, 2011 |
| Helicotropis spectabilis (Standl.) A. Delgado, 2011 |
| Helicotropis stenoloba (Standl.) A. Delgado, 2011 |
| Herpetica (DC.) Raf., 1838 |
| Herpetica alata (L.) Raf., 1838 |
| Hesperalbizia Barneby & J.W. Grimes, 1996 |
| Hesperalbizia occidentalis (Brandegee) Barneby & J.W. Grimes, 1996 |
| Hesperastragalus A. Heller, 1905 |
| Hesperastragalus brazoensis (Buckley) Rydb., 1926 |
| Hesperastragalus compactus A. Heller, 1906 |
| Hesperastragalus didymocarpus (Hook. & Arn.) A. Heller, 1905 |
| Hesperastragalus diphacus (S. Watson) Rydb., 1926 |
| Hesperastragalus dispermus (A. Gray) A. Heller, 1906 |
| Hesperastragalus elmeri (Greene) Rydb., 1926 |