| Colombia | | | Luteyn, J. L. | 1999 | Páramos, a checklist of plant diversity, geographical distribution, and botanical literature | Mem. New York Bot. Gard. | 84: viii–xv, 1–278 |
| Colombia | | | 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 |
| Colombia | | | Pohl, R. W. & G. Davidse | 1994 | 47. Calamagrostis Adans | Fl. Mesoamer. | 6: 240–241 |
| Colombia | | | Davidse, G., M. Sousa Sánchez & A.O. Chater | 1994 | Alismataceae a Cyperaceae | Fl. Mesoamer. | 6: i–xvi, 1–543 |
| Colombia | | | 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: |
| Costa Rica | | | 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: |
| Costa Rica | | | Pohl, R. W. | 1980 | Family 15. Gramineae. In: W. C. Burger, (ed.), Flora Costaricensis | Fieldiana, Bot., n.s. | 4: 1–608 |
| Costa Rica | | | Morales, J. F. | 2003 | Poaceae. En: Manual de Plantas de Costa Rica. Vol. III. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 93(3): 598–821 |
| Costa Rica | | | Pohl, R. W. & G. Davidse | 1994 | 47. Calamagrostis Adans | Fl. Mesoamer. | 6: 240–241 |
| Costa Rica | | | Davidse, G., M. Sousa Sánchez & A.O. Chater | 1994 | Alismataceae a Cyperaceae | Fl. Mesoamer. | 6: i–xvi, 1–543 |
| Costa Rica | | | 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 |
| Costa Rica | | | Luteyn, J. L. | 1999 | Páramos, a checklist of plant diversity, geographical distribution, and botanical literature | Mem. New York Bot. Gard. | 84: viii–xv, 1–278 |
| Ecuador | | | Luteyn, J. L. | 1999 | Páramos, a checklist of plant diversity, geographical distribution, and botanical literature | Mem. New York Bot. Gard. | 84: viii–xv, 1–278 |
| Ecuador | | | 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 |
| Ecuador | | | Morales, J. F. | 2003 | Poaceae. En: Manual de Plantas de Costa Rica. Vol. III. B.E. Hammel, M.H. Grayum, C. Herrera & N. Zamora (eds.) | Monogr. Syst. Bot. Missouri Bot. Gard. | 93(3): 598–821 |
| Ecuador | | | 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: |
| Ecuador | Azuay | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Cañar | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Carchi | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Cotopaxi | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Loja | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Ecuador | Tungurahua | | Jørgensen, P. M. & S. León-Yánez | 1999 | Catalogue of the Vascular Plants of Ecuador | Monogr. Syst. Bot. Missouri Bot. Gard. | 75: i–viii, 1–1181 |
| Panama | | | Luteyn, J. L. | 1999 | Páramos, a checklist of plant diversity, geographical distribution, and botanical literature | Mem. New York Bot. Gard. | 84: viii–xv, 1–278 |
| Panama | | | Pohl, R. W. & G. Davidse | 1994 | 47. Calamagrostis Adans | Fl. Mesoamer. | 6: 240–241 |
| Panama | | | Davidse, G., M. Sousa Sánchez & A.O. Chater | 1994 | Alismataceae a Cyperaceae | Fl. Mesoamer. | 6: i–xvi, 1–543 |
| Panama | | | 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 |
| Panama | | | 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: |
| Panama | Bocas del Toro | | Correa A., M. D., C. Galdames & M. Stapf | 2004 | (none) | Cat. Pl. Vasc. Panamá | 1–599 |