| Bromus barbatoides Beal, 1896 |
| Bromus barbatoides var. sulcatus Beal, 1896 |
| Bromus berteroanus Colla, 1836 |
| Bromus bicuspis Nees ex Steud., 1854 |
| Bromus bolivianus Hack. ex Renvoize, 1998 |
| Bromus breviaristatus Buckley, 1862 |
| Bromus briziformis Fisch. & C.A. Mey., 1837 |
| Bromus brongniartii Kunth, 1833 |
| Bromus californicus Nutt. ex Buckley, 1862 |
| Bromus canadensis Michx., 1803 |
| Bromus carinatus Hook. & Arn., 1840 |
| Bromus carinatus var. arizonicus Shear, 1900 |
| Bromus carinatus var. californicus Shear, 1900 |
| Bromus carinatus var. carinatus Hook. & Arn., 1840 |
| Bromus carinatus var. densus Shear, 1900 |
| Bromus carinatus var. marginatus Hitchc. ex Scoggan, 1978 |
| Bromus catharticus Vahl, 1791 |
| Bromus catharticus var. catharticus Vahl, 1791 |
| Bromus cernuus Swallen, 1958 |
| Bromus ciliaris Panz., 1785 |