| Hordeum glaucum Steud., 1855 |
| Hordeum gussoneanum Parl., 1845 |
| Hordeum hexastichum L., 1753 |
| Hordeum hystrix Roth, 1797 |
| Hordeum intercedens Nevski, 1941 |
| Hordeum jubatum L., 1753 |
| Hordeum jubatum subsp. breviaristatum Bowden, 1962 |
| Hordeum jubatum subsp. intermedium Bowden, 1962 |
| Hordeum jubatum subsp. x intermedium Bowden, 1962 |
| Hordeum jubatum var. caespitosum (Scribn.) Hitchc., 1928 |
| Hordeum jubatum var. normale Kuntze, 1898 |
| Hordeum jubatum var. pampeanum Hauman, 1916 |
| Hordeum jubatum var. tomentellum Nevski, 1941 |
| Hordeum marinum Huds., 1778 |
| Hordeum marinum subsp. gussoneanum (Parl.) Thell., 1908 |
| Hordeum murinum L., 1753 |
| Hordeum murinum subsp. glaucum (Steud.) Tzvelev, 1971 |
| Hordeum murinum subsp. gussoneanum (Parl.) Thell., 1908 |
| Hordeum murinum subsp. leporinum (Link) Arcang., 1882 |
| Hordeum pampeanum (Hauman) Herter, 1940 |