| Canada | | | Finot Saldías, V. L. & R. J. Soreng | 2003 | Graphephorum. In Catalogue of New World Grasses (Poaceae): IV. Subfamily Pooideae | Contr. U.S. Natl. Herb. | 48: 380–381 |
| Canada | | | 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: |
| Canada | Newfoundland | | Finot Saldías, V. L., P. M. Peterson, R. J. Soreng & F. O. Zuloaga | 2005 | A revision of Trisetum and Graphephorum (Poaceae: Pooideae: Aveninae) in North America north of México | Sida | 21(3): 1419–1453 |
| Canada | Ontario | | Finot Saldías, V. L., P. M. Peterson, R. J. Soreng & F. O. Zuloaga | 2005 | A revision of Trisetum and Graphephorum (Poaceae: Pooideae: Aveninae) in North America north of México | Sida | 21(3): 1419–1453 |
| Canada | Quebec | | Finot Saldías, V. L., P. M. Peterson, R. J. Soreng & F. O. Zuloaga | 2005 | A revision of Trisetum and Graphephorum (Poaceae: Pooideae: Aveninae) in North America north of México | Sida | 21(3): 1419–1453 |
| United States | | | Finot Saldías, V. L. & R. J. Soreng | 2003 | Graphephorum. In Catalogue of New World Grasses (Poaceae): IV. Subfamily Pooideae | Contr. U.S. Natl. Herb. | 48: 380–381 |
| 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 | Maine | Aroostook | Finot Saldías, V. L., P. M. Peterson, R. J. Soreng & F. O. Zuloaga | 2005 | A revision of Trisetum and Graphephorum (Poaceae: Pooideae: Aveninae) in North America north of México | Sida | 21(3): 1419–1453 |
| United States | Michigan | | Finot Saldías, V. L., P. M. Peterson, R. J. Soreng & F. O. Zuloaga | 2005 | A revision of Trisetum and Graphephorum (Poaceae: Pooideae: Aveninae) in North America north of México | Sida | 21(3): 1419–1453 |
| United States | New Hampshire | | Finot Saldías, V. L., P. M. Peterson, R. J. Soreng & F. O. Zuloaga | 2005 | A revision of Trisetum and Graphephorum (Poaceae: Pooideae: Aveninae) in North America north of México | Sida | 21(3): 1419–1453 |
| United States | New York | | Finot Saldías, V. L., P. M. Peterson, R. J. Soreng & F. O. Zuloaga | 2005 | A revision of Trisetum and Graphephorum (Poaceae: Pooideae: Aveninae) in North America north of México | Sida | 21(3): 1419–1453 |
| United States | Vermont | | Finot Saldías, V. L., P. M. Peterson, R. J. Soreng & F. O. Zuloaga | 2005 | A revision of Trisetum and Graphephorum (Poaceae: Pooideae: Aveninae) in North America north of México | Sida | 21(3): 1419–1453 |
| United States | Wisconsin | | Finot Saldías, V. L., P. M. Peterson, R. J. Soreng & F. O. Zuloaga | 2005 | A revision of Trisetum and Graphephorum (Poaceae: Pooideae: Aveninae) in North America north of México | Sida | 21(3): 1419–1453 |