| 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 |
| Hordeum patulum Moench, 1794 |
| Hordeum polystichon Haller f., 1776 |
| Hordeum polystichon var. vulgare (L.) Döll, 1843 |
| Hordeum pusillum Nutt., 1818 |
| Hordeum sativum Pers., 1805 |
| Hordeum sativum var. vulgare (L.) K. Richt., 1890 |
| Hordeum spontaneum K. Koch, 1848 |
| Hordeum stebbinsii Covas, 1949 |
| Hordeum tetrastichum Stokes, 1812 |
| Hordeum utriculatum Bertero, 1829 |