| Brazil | | | Rosengurtt, B., B. R. A. Maffei & P. I. Artucio | 1970 | (none) | Gram. Urug. | [i–vii], 1–489 |
| Brazil | | | Soreng, R. J. | 2003 | Erianthecium. In Catalogue of New World Grasses (Poaceae): IV. Subfamily Pooideae | Contr. U.S. Natl. Herb. | 48: 312 |
| Brazil | | | 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: |
| Brazil | | | Forzza, R. C. | 2010 | (none) | Lista de espécies Flora do Brasil | http://floradobrasil.jbrj.gov.br/2010 |
| Brazil | | | da Silva, L.N., J. M. Saarela, L. Essi & T. T. Souza-Chies | 2022 [2021] | A comprehensive species sampling sheds light on the molecular phylogenetics of Calothecinae (Poaceae, Pooideae, Poeae): Evidence for a new subtribe and multiple genera within the Chascolytrum clade | J. Syst. Evol. | 60(3): 691-712 |
| Brazil | Minas Gerais | | 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: |
| Brazil | Minas Gerais | | Soreng, R. J. | 2003 | Erianthecium. In Catalogue of New World Grasses (Poaceae): IV. Subfamily Pooideae | Contr. U.S. Natl. Herb. | 48: 312 |
| Brazil | Rio Grande do Sul | | 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: |
| Brazil | Rio Grande do Sul | | Soreng, R. J. | 2003 | Erianthecium. In Catalogue of New World Grasses (Poaceae): IV. Subfamily Pooideae | Contr. U.S. Natl. Herb. | 48: 312 |
| Brazil | Rio Grande do Sul | | Longhi-Wagner, H. M. | 1987 | Gramineae. Tribo Poeae, in Fl. Ilust. Rio Grande do Sul | Bol. Inst. Bioci. Univ. Fed. Rio Grande do Sul | 41: 1–191 |
| Uruguay | | | 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: |
| Uruguay | | | da Silva, L.N., J. M. Saarela, L. Essi & T. T. Souza-Chies | 2022 [2021] | A comprehensive species sampling sheds light on the molecular phylogenetics of Calothecinae (Poaceae, Pooideae, Poeae): Evidence for a new subtribe and multiple genera within the Chascolytrum clade | J. Syst. Evol. | 60(3): 691-712 |
| Uruguay | | | Soreng, R. J. | 2003 | Erianthecium. In Catalogue of New World Grasses (Poaceae): IV. Subfamily Pooideae | Contr. U.S. Natl. Herb. | 48: 312 |
| Uruguay | | | Longhi-Wagner, H. M. | 1987 | Gramineae. Tribo Poeae, in Fl. Ilust. Rio Grande do Sul | Bol. Inst. Bioci. Univ. Fed. Rio Grande do Sul | 41: 1–191 |
| Uruguay | | | Rosengurtt, B., B. R. A. Maffei & P. I. Artucio | 1970 | (none) | Gram. Urug. | [i–vii], 1–489 |
| Uruguay | | | SPECIMEN BASED RECORD | | Published protolog data | | |
| Uruguay | Cerro Largo | | Rosengurtt, B., B. R. A. Maffei & P. I. Artucio | 1970 | (none) | Gram. Urug. | [i–vii], 1–489 |
| Uruguay | Montevideo | | Rosengurtt, B., B. R. A. Maffei & P. I. Artucio | 1970 | (none) | Gram. Urug. | [i–vii], 1–489 |
| Uruguay | Rocha | | Rosengurtt, B., B. R. A. Maffei & P. I. Artucio | 1970 | (none) | Gram. Urug. | [i–vii], 1–489 |