| Australia | | | Sharp, D. & B. K. Simon | 2002 | AusGrass: Grasses of Australia. CD-ROM, Version 1.0 | | CD–ROM |
| Australia | | | Pavlick, L. E. | 1995 | (none) | Bromus N. Amer. | 1–160 |
| Mexico | | | Soreng, R. J., G. Davidse, P. M. Peterson, F. O. Zuloaga, E. J. Judziewicz, T. S. Filgueiras & O. Morrone | 2003 and onwards | On-line taxonomic novelties and updates, distributional additions and corrections, and editorial changes since the four published volumes of the Catalogue of New World Grasses (Poaceae) published in Contr. U.S. Natl. Herb. vols. 39, 41, 46, and 48 | Internet Cat. New World Grasses | http://www.tropicos.org/Project/CNWG: |
| Mexico | | | Pavlick, L. E., A. M. Planchuelo, P. M. Peterson & R. J. Soreng | 2003 | Bromus. | Catalogue of New World Grasses (Poaceae): IV. Subfamily Pooideae, Contr. U.S. Natl. Herb. | 48: 154–191 |
| Mexico | | | Espejo Serna, M. A., A. R. López-Ferrari & J. Valdés-Reyna | 2000 | Poaceae | Monocot. Mexic. Sinopsis Floríst. | 10: 7–236 [and index] |
| Mexico | | | Beetle, A.A. | 1987 | (none) | Gram. México | 2: 1–344 |
| Mexico | Baja California | | Espejo Serna, M. A., A. R. López-Ferrari & J. Valdés-Reyna | 2000 | Poaceae | Monocot. Mexic. Sinopsis Floríst. | 10: 7–236 [and index] |
| Mexico | Baja California | | Beetle, A.A. | 1987 | (none) | Gram. México | 2: 1–344 |
| United States | | | Pavlick, L. E., A. M. Planchuelo, P. M. Peterson & R. J. Soreng | 2003 | Bromus. | Catalogue of New World Grasses (Poaceae): IV. Subfamily Pooideae, Contr. U.S. Natl. Herb. | 48: 154–191 |
| United States | | | Soreng, R. J., G. Davidse, P. M. Peterson, F. O. Zuloaga, E. J. Judziewicz, T. S. Filgueiras & O. Morrone | 2003 and onwards | On-line taxonomic novelties and updates, distributional additions and corrections, and editorial changes since the four published volumes of the Catalogue of New World Grasses (Poaceae) published in Contr. U.S. Natl. Herb. vols. 39, 41, 46, and 48 | Internet Cat. New World Grasses | http://www.tropicos.org/Project/CNWG: |
| United States | | | Hickman, J. C. | 1993 | (none) | The Jepson Manual: Higher Plants of California | 1–1400 |
| United States | | | Munz, P. A. | 1974 | (none) | Fl. S. Calif. | 1–1086 |
| United States | | | Munz, P. A. & D. D. Keck | 1959 | (none) | Cal. Fl. | 1–1681 |
| United States | | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| United States | Arizona | | Pavlick, L. E. | 1995 | (none) | Bromus N. Amer. | 1–160 |
| United States | California | | Pavlick, L. E. | 1995 | (none) | Bromus N. Amer. | 1–160 |
| United States | California | | Hickman, J. C. | 1993 | (none) | The Jepson Manual: Higher Plants of California | 1–1400 |
| United States | California | | Munz, P. A. | 1974 | (none) | Fl. S. Calif. | 1–1086 |
| United States | California | | Munz, P. A. & D. D. Keck | 1959 | (none) | Cal. Fl. | 1–1681 |
| United States | California | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| United States | Nevada | | Pavlick, L. E. | 1995 | (none) | Bromus N. Amer. | 1–160 |
| United States | Oregon | | Pavlick, L. E. | 1995 | (none) | Bromus N. Amer. | 1–160 |