| Canada | | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| Canada | | | Tolmatchev, A. I. | 1964 | Gramineae | Arktic. Fl. SSSR | 2: 1–274 |
| Canada | | | Soreng, R. J. & C. W. Greene | 2003 | Calamagrostis. | Catalogue of New World Grasses (Poaceae): IV. Subfamily Pooideae, Contr. U.S. Natl. Herb. | 48: 191–227 |
| 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 | Labrador | | Tolmatchev, A. I. | 1964 | Gramineae | Arktic. Fl. SSSR | 2: 1–274 |
| Greenland | | | Fredskild, B. | 1996 | A phytogeographical study of the vascular plants of West Greenland (62o20'-74o00'N) | BioScience | 45: 1–157 |
| Greenland | | | Soreng, R. J. & C. W. Greene | 2003 | Calamagrostis. | Catalogue of New World Grasses (Poaceae): IV. Subfamily Pooideae, Contr. U.S. Natl. Herb. | 48: 191–227 |
| Greenland | | | Böcher, T. W., K. Holmen & K. Jacobsen. | 1968 | (none) | Fl. Greenland (ed. 2) | 312 pp |
| Greenland | | | Tolmatchev, A. I. | 1964 | Gramineae | Arktic. Fl. SSSR | 2: 1–274 |
| Greenland | | | 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 | | | 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 | | | Anonymous | 1986 | (none) | List-Based Rec., Soil Conserv. Serv., U.S.D.A. | |
| United States | | | Tolmatchev, A. I. | 1964 | Gramineae | Arktic. Fl. SSSR | 2: 1–274 |
| United States | | | Soreng, R. J. & C. W. Greene | 2003 | Calamagrostis. | Catalogue of New World Grasses (Poaceae): IV. Subfamily Pooideae, Contr. U.S. Natl. Herb. | 48: 191–227 |
| United States | Alaska | | Tolmatchev, A. I. | 1964 | Gramineae | Arktic. Fl. SSSR | 2: 1–274 |