| 0 | PI 404293 | 628 | Stapfochloa canterae (Arechav.) P. M. Peterson | Rio Grande do Sul, Brazil | S9 | | | 1975 | COLLECTED | 01/1975 | On Route 293, 8 km east of Bage | | | | | Erect bunchgrass with leafy base. Inflorescence 46cm, leaves 15cm high. | 1304631 | PI 404293 |
| 1 | PI 404615 | 259 | Stapfochloa elata (Desv.) P. M. Peterson | Boquerón, Paraguay | S9 | | | 1975 | COLLECTED | 01/1975 | Near entrance to Estacion Experimental Ganadera | -26.50000000, -60.43333333 | | | | Stemmy bunchgrass with inflorescence 1.06m high. Drought tolerant. | 1304831 | PI 404615 |
| 2 | PI 404616 | 297 | Stapfochloa elata (Desv.) P. M. Peterson | Alto Paraná, Paraguay | S9 | | | 1975 | COLLECTED | 01/1975 | Six km north on road to Hernandarias, 4 km west of Puente Presidente Strossner. | -25.46666667, -54.63333333 | | | | Erect bunchgrass with large inflorescence 1.06m high. Leaves 0.6m. | 1304832 | PI 404616 |
| 3 | PI 404617 | 213 | Stapfochloa canterae (Arechav.) P. M. Peterson | Presidente Hayes, Paraguay | S9 | | | 1975 | COLLECTED | 01/1975 | On Route 12, 10 km northwest of Chaco-I. | -25.18333333, -57.71666667 | | | | | 1304833 | PI 404617 |
| 4 | PI 404758 | 448 | Stapfochloa canterae (Arechav.) P. M. Peterson | Uruguay | S9 | | | 1975 | COLLECTED | 01/1975 | On Route 3, 52 km north-northeast of Paysandu | | | | | Erect, perennial bunchgrass with inflorescence to 0.6m high. Leaves 25cm. | 1304926 | PI 404758 |
| 5 | PI 337530 | 210 | Stapfochloa canterae (Arechav.) P. M. Peterson | Santa Fe, Argentina | S9 | | | 1968 | COLLECTED | | Near Route 313, west of Colonia Mascias | | | | | Bunchgrass; growing in association with Spartina; 0.9 m high | 1251505 | PI 337530 |
| 6 | PI 331105 | 48 | Stapfochloa canterae (Arechav.) P. M. Peterson | Uruguay | S9 |  | | 1968 | COLLECTED | | Along roadside Route No. 3 at Km. 458.3 south of Salto | | | | | | 1246399 | PI 331105 |
| 7 | PI 316034 | 'Uruguiana' | Stapfochloa elata (Desv.) P. M. Peterson | Rio Grande do Sul, Brazil | | | Historic | 1966 | COLLECTED | | Uruguaiana | | | | | | 1707731 | PI 316034 |
| 8 | PI 309963 | 334 | Stapfochloa elata (Desv.) P. M. Peterson | Brazil | S9 | | | 1965 | COLLECTED | | Uruguaiana | | | | | | 1231347 | PI 309963 |
| 9 | PI 309964 | 335 | Stapfochloa elata (Desv.) P. M. Peterson | Brazil | S9 | | | 1965 | COLLECTED | | Uruguaiana | | | | | | 1231348 | PI 309964 |
| 10 | PI 309965 | 338 | Stapfochloa elata (Desv.) P. M. Peterson | Brazil | S9 | | | 1965 | COLLECTED | | Taquara | | | | | | 1231349 | PI 309965 |
| 11 | PI 309966 | 344 | Stapfochloa elata (Desv.) P. M. Peterson | Brazil | S9 | | | 1965 | COLLECTED | | Vacaria | | | | | | 1231350 | PI 309966 |
| 12 | PI 309967 | 346 | Stapfochloa elata (Desv.) P. M. Peterson | Brazil | S9 | | | 1965 | COLLECTED | | Vacaria | | | | | | 1231351 | PI 309967 |
| 13 | PI 309968 | No. 347 | Stapfochloa elata (Desv.) P. M. Peterson | Rio Grande do Sul, Brazil | | | Historic | 1965 | COLLECTED | | Montenegro | | | | | | 1704933 | PI 309968 |
| 14 | PI 309969 | No. 361 | Stapfochloa elata (Desv.) P. M. Peterson | Rio Grande do Sul, Brazil | | | Historic | 1965 | COLLECTED | | Uruguariana | | | | | | 1704934 | PI 309969 |
| 15 | PI 309981 | 349 | Stapfochloa elata (Desv.) P. M. Peterson | Brazil | S9 | | | 1965 | COLLECTED | | Uruguaiana | | | | | | 1231361 | PI 309981 |
| 16 | PI 309983 | 351 | Stapfochloa elata (Desv.) P. M. Peterson | Brazil | S9 | | | 1965 | COLLECTED | | Nova Fac | | | | | | 1231363 | PI 309983 |
| 17 | PI 309985 | 357 | Stapfochloa elata (Desv.) P. M. Peterson | Brazil | S9 | | | 1965 | COLLECTED | | Uruguaiana | | | | | | 1231365 | PI 309985 |
| 18 | PI 204166 | 1833 | Stapfochloa elata (Desv.) P. M. Peterson | Paraguay | |  | Historic | 1952 | COLLECTED | 08/01/1952 | | | | | | | 1171567 | PI 204166 |
| 19 | PI 202366 | 937 | Stapfochloa canterae (Arechav.) P. M. Peterson | Santa Fe, Argentina | S9 | | | 1952 | COLLECTED | 05/15/1952 | La Germania Seed Farm, Las Rosas | | | | | Tufted perennial | 1169952 | PI 202366 |
| 20 | PI 151937 | | Stapfochloa ciliata (Sw.) P. M. Peterson | Argentina | | | Historic | 1945 | COLLECTED | | | | | | | | 1889218 | PI 151937 |
| 21 | PI 151086 | | Stapfochloa berroi (Arechav.) P. M. Peterson | Uruguay | | | Historic | 1945 | COLLECTED | | | | | | | | 1888183 | PI 151086 |
| 22 | PI 150797 | | Stapfochloa berroi (Arechav.) P. M. Peterson | Argentina | | | Historic | 1945 | COLLECTED | | | | | | | | 1887751 | PI 150797 |
| 23 | PI 92334 | | Stapfochloa berroi (Arechav.) P. M. Peterson | Argentina | | | Historic | 1931 | COLLECTED | | | | | | | | 1778995 | PI 92334 |
| 24 | PI 75776 | | Stapfochloa elata (Desv.) P. M. Peterson | Buenos Aires, Argentina | | | Historic | 1927 | COLLECTED | | | | | | | | 1730458 | PI 75776 |
| 25 | PI 74548 | | Stapfochloa elata (Desv.) P. M. Peterson | Santiago del Estero, Argentina | | | Historic | 1927 | COLLECTED | | | | | | | | 1729285 | PI 74548 |
| 26 | PI 74514 | | Stapfochloa ciliata (Sw.) P. M. Peterson | Montevideo, Uruguay | | | Historic | 1927 | COLLECTED | | | | | | | | 1729259 | PI 74514 |
| 27 | PI 62039 | | Stapfochloa canterae (Arechav.) P. M. Peterson | Montevideo, Uruguay | | | Historic | 1924 | COLLECTED | | | | | | | | 1663273 | PI 62039 |
| 28 | PI 62041 | | Stapfochloa ciliata (Sw.) P. M. Peterson | Montevideo, Uruguay | | | Historic | 1924 | COLLECTED | | | | | | | | 1663275 | PI 62041 |
| 29 | PI 58726 | No. 305 | Stapfochloa elata (Desv.) P. M. Peterson | Shewa, Ethiopia | | | Historic | 1924 | COLLECTED | 11/1923 | | | | | | | 1660008 | PI 58726 |
| 30 | PI 37994 | No. 113a | Stapfochloa elata (Desv.) P. M. Peterson | Minas Gerais, Brazil | | | Historic | 1914 | COLLECTED | 02/08/1914 | | | | | | | 1602813 | PI 37994 |