| 0 | PI 675352 | LK 215e Germplasm | Nassella pulchra (Hitchc.) Barkworth | California, United States | W6 | | | 2004 | COLLECTED | PRE 2000 | Walnut Valley Ranch near Lodgoa, Colusa County | 39.33000000, -122.50000000 | 1280 | Annual precip 19.8 in | Wild material | Can be used for restoration, critical area plantings, cover crop, and wildlife habitat. | 1694856 | PI 675352 |
| 1 | PI 695370 | LK115d Germplasm | Nassella pulchra (Hitchc.) Barkworth | California, United States | W6 |  | Not Available | 2004 | COLLECTED | PRE 2000 | | | | | Wild material | Can be used for restoration, critical area plantings, cover crop, and wildlife habitat. | 1694853 | PI 695370 |
| 2 | PI 695371 | LK315d Germplasm | Nassella pulchra (Hitchc.) Barkworth | California, United States | W6 | | Not Available | 2004 | COLLECTED | PRE 2000 | | | | | Wild material | Can be used for restoration, critical area plantings, cover crop, and wildlife habitat. | 1694854 | PI 695371 |
| 3 | PI 631162 | 'AC MALLARD' | Nassella viridula (Trin.) Barkworth | Manitoba, Canada | W6 | | Not Available | 2002 | DEVELOPED | PRE 06/02/2002 | | | | | Cultivar | Intended as a replacement for the green needlegrass variety Lodorm (developed by USDA-ARS in Bismarck, ND in 1970) for the Canadian prairies. Selected for improved seedling emergence vs. Lodorm, having an average of 58 seedlings per meter row vs. 18 seedlings/row for Lodorm, from an initial 100 seeds per meter row. More columnar-shaped panicle vs. Lodorm and is more resistant to seed shattering. Good adaptability to western Canadian growing conditions. In all other aspects, similar to other green needlegrass indigenous to the eastern prairie region of western Canada. | 1637126 | PI 631162 |
| 4 | PI 628740 | T-861 | Nassella viridula (Trin.) Barkworth | New Mexico, United States | W6 | | | 1998 | COLLECTED | | Rio Arriba County, 8 miles north of town of Cebolla. | 36.63333333, -106.53333333 | | | Wild material | | 1563530 | PI 628740 |
| 5 | PI 628741 | T-874 | Nassella viridula (Trin.) Barkworth | Colorado, United States | W6 | | | 1998 | COLLECTED | | 20 miles northeast of town of Walsenburg on Highway 10 in Huerfano County. | 37.75000000, -104.46666667 | | | Wild material | | 1563534 | PI 628741 |
| 6 | PI 632466 | T-878 | Nassella viridula (Trin.) Barkworth | Colorado, United States | W6 | | | 1998 | COLLECTED | | 15 miles west of town of Pritchett on Highway 160 in Baca County. | 37.28333333, -103.01666667 | | | Wild material | | 1563535 | PI 632466 |
| 7 | PI 632521 | T-908 | Nassella viridula (Trin.) Barkworth | Alberta, Canada | W6 | | | 1998 | COLLECTED | | Highway 22 and Highway 517 junction at Oldman River bridge. | 49.80000000, -114.15000000 | | | Wild material | | 1563542 | PI 632521 |
| 8 | PI 632534 | T-867 | Nassella viridula (Trin.) Barkworth | New Mexico, United States | W6 | | | 1998 | COLLECTED | | 1 mile southeast of town of Grenville on Highway 64/87 in Union County. | | 1821 | | Wild material | | 1563531 | PI 632534 |
| 9 | PI 632556 | Cucharas | Nassella viridula (Trin.) Barkworth | United States | W6 | | | 1998 | DEVELOPED | PRE 09/1998 | | | | | Wild material | T-872 possessed high germination without prechill compared to 30 accessions from Alberta, North Dakota, South Dakota, Montana, Colorado, and New Mexico, surpassing the two commercially available cultivars. Seed through generation G-5 will be eligible for certification. | 1563533 | PI 632556 |
| 10 | PI 632561 | T-895 | Nassella viridula (Trin.) Barkworth | Colorado, United States | W6 | | | 1998 | COLLECTED | | 24.5 miles north of town of Loma on Highway 139 in Garfield County. | 39.50000000, -108.75000000 | | | Wild material | | 1563541 | PI 632561 |
| 11 | PI 632583 | T-459 | Nassella viridula (Trin.) Barkworth | Colorado, United States | W6 | | | 1998 | COLLECTED | | Boulder. | | | | Wild material | | 1563528 | PI 632583 |
| 12 | PI 632589 | T-860 | Nassella viridula (Trin.) Barkworth | New Mexico, United States | W6 | | | 1998 | COLLECTED | | Rio Arriba County, 0.2 miles east of Highway 64 and Highway 84 junction. | 36.90000000, -106.78333333 | | | Wild material | | 1563529 | PI 632589 |
| 13 | PI 636605 | T-888 | Nassella viridula (Trin.) Barkworth | Colorado, United States | W6 | | | 1998 | COLLECTED | | 2.5 miles west of Highway 92 and Highway 50 junction on Highway 92 in Gunnison County. | 38.45000000, -107.35000000 | | | Wild material | | 1563540 | PI 636605 |
| 14 | PI 636606 | T-915 | Nassella viridula (Trin.) Barkworth | Alberta, Canada | W6 | | | 1998 | COLLECTED | | Oldman Dam. | | | | Wild material | | 1563543 | PI 636606 |
| 15 | PI 636607 | T-916 | Nassella viridula (Trin.) Barkworth | Alberta, Canada | W6 | | | 1998 | COLLECTED | | Highway 3A north of Lethbridge. | 49.71666667, -112.96666667 | | | Wild material | | 1563544 | PI 636607 |
| 16 | PI 636608 | T-919 | Nassella viridula (Trin.) Barkworth | Alberta, Canada | W6 | | | 1998 | COLLECTED | | North of Taber, across Oldman River from Taber Provincial Park. | 49.81666667, -112.16666667 | | | Wild material | | 1563545 | PI 636608 |
| 17 | PI 636609 | T-922 | Nassella viridula (Trin.) Barkworth | Alberta, Canada | W6 | | | 1998 | COLLECTED | | 1 mile south of Bow River on Highway 36. | 50.25000000, -112.08333333 | | | Wild material | | 1563546 | PI 636609 |
| 18 | PI 636610 | T-924 | Nassella viridula (Trin.) Barkworth | Alberta, Canada | W6 | | | 1998 | COLLECTED | | 3 km west of Highway 36 on Highway 565 at Bull Pound Creek. | 52.13333333, -111.90000000 | | | Wild material | | 1563548 | PI 636610 |
| 19 | PI 639783 | T-923 | Nassella viridula (Trin.) Barkworth | Alberta, Canada | W6 | | | 1998 | COLLECTED | | 21 km north of Taber on Highway 36. | 49.98333333, -112.06666667 | | | Wild material | | 1563547 | PI 639783 |
| 20 | PI 639784 | T-930 | Nassella viridula (Trin.) Barkworth | Alberta, Canada | W6 | | | 1998 | COLLECTED | | 5 miles south, 3.5 miles east of Viking. | 53.01666667, -111.66666667 | | | Wild material | | 1563550 | PI 639784 |
| 21 | PI 639785 | T-935 | Nassella viridula (Trin.) Barkworth | Colorado, United States | W6 | | | 1998 | COLLECTED | | 7 miles south of McClure Pass on Highway 133 in Gunnison County. | 39.06666667, -107.36666667 | | | Wild material | | 1563552 | PI 639785 |
| 22 | PI 639786 | Acc:1145 | Nassella viridula (Trin.) Barkworth | Montana, United States | W6 | | | 1998 | COLLECTED | | Choteau County. | | | | Wild material | | 1563555 | PI 639786 |
| 23 | PI 693309 | T-931 | Nassella viridula (Trin.) Barkworth | Alberta, Canada | W6 | | | 1998 | COLLECTED | | Pari Conservation Farm; 2 miles east of Mundare on Highway 16. | 53.56666667, -112.30000000 | | | Wild material | | 1563551 | PI 693309 |
| 24 | PI 693310 | Acc:1141 | Nassella viridula (Trin.) Barkworth | North Dakota, United States | W6 | | | 1998 | COLLECTED | | Town of Hettinger. | | | | Wild material | | 1563554 | PI 693310 |
| 25 | PI 697258 | T-879 | Nassella viridula (Trin.) Barkworth | Colorado, United States | W6 | | | 1998 | COLLECTED | | 3 miles east of Highway 160 and Highway 109 junction on Highway 160 in Las Animas County. | 37.28333333, -103.30000000 | | | Wild material | | 1563536 | PI 697258 |
| 26 | PI 697259 | T-880 | Nassella viridula (Trin.) Barkworth | Colorado, United States | W6 | | | 1998 | COLLECTED | | 12 miles west of town of Kim in Las Animas County. | 37.21666667, -103.55000000 | | | Wild material | | 1563538 | PI 697259 |
| 27 | PI 478007 | T 6224 | Nassella viridula (Trin.) Barkworth | South Dakota, United States | W6 | | | 1983 | COLLECTED | 08/1962 | Fairburn, Custer County, South Dakota | | | | Cultivated material | Collected by J. D. McDermand. Purchased from Bober Seed Co. Potential use for surface mine reclamation and forage. Forage yeld high. | 1372943 | PI 478007 |
| 28 | PI 478575 | R-175 | Nassella pubiflora (Trin. & Rupr.) É. Desv. | Peru | W6 | | Not Available | 1981 | COLLECTED | | | | | | Cultivated material | Field trial plot. | 1373511 | PI 478575 |
| 29 | PI 478588 | R-170 | Nassella brachyphylla (Hitchc.) Barkworth | Peru | W6 | | Not Available | 1981 | COLLECTED | 05/06/1981 | Puno | | | | Cultivated material | Field trial plot. | 1373524 | PI 478588 |
| 30 | PI 476300 | 'LODORM' | Nassella viridula (Trin.) Barkworth | North Dakota, United States | W6 | | | 1977 | DONATED | 1977 | | | | | Cultivar | Selected for low dormancy in newly harvested seed. | 1371236 | PI 476300 |
| 31 | PI 387938 | 148 | Nassella viridula (Trin.) Barkworth | Alberta, Canada | W6 | | | 1974 | COLLECTED | 1973 | Peace River | | | | Wild material | | 1291434 | PI 387938 |
| 32 | PI 372239 | 55 | Nassella charruana (Arechav.) Barkworth | Uruguay | | | Historic | 1972 | DONATED | 02/27/1972 | | | | | Uncertain improvement status | | 1279023 | PI 372239 |
| 33 | PI 372240 | 56 | Nassella hyalina (Nees) Barkworth | Uruguay | W6 | | | 1972 | DONATED | 02/27/1972 | | | | | Uncertain improvement status | | 1279024 | PI 372240 |
| 34 | PI 372241 | 57 | Nassella longiglumis (Phil.) Barkworth | Uruguay | | | Historic | 1972 | DONATED | 02/27/1972 | | | | | | | 1279025 | PI 372241 |
| 35 | PI 372244 | 61 | Nassella neesiana (Trin. & Rupr.) Barkworth | Uruguay | | | Historic | 1972 | DONATED | 02/27/1972 | | | | | | | 1279027 | PI 372244 |
| 36 | PI 372246 | 63 | Nassella trichotoma (Nees) Hack. ex Arechav. | Uruguay | | | Historic | 1972 | DONATED | 02/27/1972 | | | | | | | 1279028 | PI 372246 |
| 37 | PI 369011 | 9730 | Nassella curamalalensis (Speg.) Barkworth | Uruguay | W6 | | | 1971 | COLLECTED | 1966 | Monzon-Heber | | | | Uncertain improvement status | | 1276566 | PI 369011 |
| 38 | PI 378056 | BN-20811 | Nassella tenuissima (Trin.) Barkworth | Île-de-France, France | W6 | | | 1971 | DONATED | 07/1971 | | | | | Uncertain improvement status | Bunchgrass 10 | 1283138 | PI 378056 |
| 39 | PI 331160 | 70 | Nassella hyalina (Nees) Barkworth | Argentina | | | Historic | 1968 | COLLECTED | | Near railroad right-of-way, 8km west of Manfredi on Route 9 | | | | | Leafy bunchgrass, 51cm high; leaves narrow, tough 10 | 1246425 | PI 331160 |
| 40 | PI 311713 | 9356 | Nassella neesiana (Trin. & Rupr.) Barkworth | Chile | W6 | | | 1966 | COLLECTED | | Between Quedrada de las Casas and Q. Vacas, Mas Afuera | | | | Wild material | Short rhizomes, 18 to 48in tall; on open slopes above the sea; common 10 | 1232717 | PI 311713 |
| 41 | PI 308525 | A 1344 | Nassella pubiflora (Trin. & Rupr.) É. Desv. | Peru | | | Historic | 1965 | COLLECTED | | On road to Oroya 21km from Huancayo | | 3414 | | Wild material | | 1230522 | PI 308525 |
| 42 | PI 297966 | CPI 25816 | Nassella hyalina (Nees) Barkworth | Australia | | | Historic | 1964 | COLLECTED | | | | | | | | 1682659 | PI 297966 |
| 43 | PI 297967 | CPI 22792 | Nassella clarazii (Ball) Barkworth | Australia | | | Historic | 1964 | COLLECTED | | | | | | | | 1682660 | PI 297967 |
| 44 | PI 297969 | CPI 25801 | Nassella hyalina (Nees) Barkworth | Australia | | | Historic | 1964 | COLLECTED | | | | | | | | 1682662 | PI 297969 |
| 45 | PI 297970 | CPI 9730 | Nassella megapotamica (Spreng. ex Trin.) Barkworth | Australia | | | Historic | 1964 | COLLECTED | | | | | | | | 1682663 | PI 297970 |
| 46 | PI 297971 | CPI 25802 | Nassella megapotamica (Spreng. ex Trin.) Barkworth | Australia | | | Historic | 1964 | COLLECTED | | | | | | | | 1682664 | PI 297971 |
| 47 | PI 297972 | CPI 25803 | Nassella nutans (Hack.) Barkworth | Australia | | | Historic | 1964 | COLLECTED | | | | | | | | 1682665 | PI 297972 |
| 48 | PI 297976 | CPI 22079 | Nassella tenuis (Phil.) Barkworth | Australia | | | Historic | 1964 | COLLECTED | | | | | | | | 1682669 | PI 297976 |
| 49 | PI 289543 | | Nassella hyalina (Nees) Barkworth | Buenos Aires, Argentina | W6 | | | 1963 | DONATED | 04/24/1963 | | | | | Uncertain improvement status | | 1219200 | PI 289543 |
| 50 | PI 284853 | CPI 9729 | Nassella hyalina (Nees) Barkworth | Uruguay | | | Historic | 1962 | COLLECTED | | | | | | | | 1687973 | PI 284853 |
| 51 | PI 283993 | CPI 22410 | Nassella hyalina (Nees) Barkworth | Argentina | | | Historic | 1962 | COLLECTED | | | | | | | | 1687513 | PI 283993 |
| 52 | PI 282896 | LATIFLORA | Nassella megapotamica (Spreng. ex Trin.) Barkworth | Uruguay | W6 | | | 1962 | COLLECTED | | From Desconocido | | | | Cultivated material | | 1210126 | PI 282896 |
| 53 | PI 282897 | 94 | Nassella tenuis (Phil.) Barkworth | Argentina | W6 | | | 1962 | COLLECTED | | | | | | Uncertain improvement status | | 1210127 | PI 282897 |
| 54 | PI 476983 | 'GREEN STIPAGRASS' | Nassella viridula (Trin.) Barkworth | North Dakota, United States | W6 | | | 1962 | COLLECTED | 1935 | Mandan, North Dakota | | | | Cultivar | Released in 1946. Superior to common green needlegrass in forage and seed yields and in seedling and regrowth characteristics. | 1371919 | PI 476983 |
| 55 | PI 237812 | | Nassella formicarum (Delile) Barkworth | Spain | W6 | | | 1957 | COLLECTED | | | | | | Uncertain improvement status | | 1186369 | PI 237812 |
| 56 | PI 237818 | | Nassella neesiana (Trin. & Rupr.) Barkworth | Spain | W6 | | Not Available | 1957 | COLLECTED | | | | | | Uncertain improvement status | | 1186370 | PI 237818 |
| 57 | PI 236974 | | Nassella viridula (Trin.) Barkworth | Canada | W6 | | | 1957 | COLLECTED | | From 11 miles west of Cochrane. | | | | Wild material | | 1186096 | PI 236974 |
| 58 | PI 236975 | | Nassella viridula (Trin.) Barkworth | Canada | W6 | | | 1957 | COLLECTED | | From along shelf of Peace River near Dunvegan. | | | | Wild material | | 1186097 | PI 236975 |
| 59 | PI 204633 | | Nassella formicarum (Delile) Barkworth | Turkey | W6 | | | 1953 | COLLECTED | | From between Malya and Yerkoy, Yozgat. | | | | Wild material | | 1172147 | PI 204633 |
| 60 | PI 203791 | | Nassella hyalina (Nees) Barkworth | Brazil | W6 |  | | 1952 | COLLECTED | | From Sao Gabriel. | | | | Wild material | | 1171016 | PI 203791 |
| 61 | PI 204290 | | Nassella hyalina (Nees) Barkworth | Argentina | W6 | | | 1952 | COLLECTED | | From La Germania Seed Farm, Santa Fe, Argentina. | | | | Wild material | | 1171716 | PI 204290 |
| 62 | PI 204295 | | Nassella hyalina (Nees) Barkworth | Argentina | W6 | | | 1952 | COLLECTED | | From San Luis, Argentina. | | | | Wild material | | 1171723 | PI 204295 |
| 63 | PI 202415 | | Nassella hyalina (Nees) Barkworth | | W6 | | | 1952 | COLLECTED | | From La Germania Seed Farm, Las Rosas, Santa Fe. | | | | Cultivated material | | 1169968 | PI 202415 |
| 64 | PI 197867 | | Nassella hyalina (Nees) Barkworth | | W6 | | | 1951 | COLLECTED | | From P.F. 77, Argentina. | | | | Uncertain improvement status | | 1168386 | PI 197867 |
| 65 | PI 197869 | P.F. 152 | Nassella trichotoma (Nees) Hack. ex Arechav. | Argentina | | | Historic | 1951 | COLLECTED | | | | | | | | 1675596 | PI 197869 |
| 66 | PI 186966 | | Nassella charruana (Arechav.) Barkworth | Florida, Uruguay | | | Historic | 1950 | COLLECTED | | | | | | | | 1667988 | PI 186966 |
| 67 | PI 186348 | | Nassella charruana (Arechav.) Barkworth | Australian Capital Territory, Australia | | | Historic | 1950 | COLLECTED | | | | | | | | 1667357 | PI 186348 |
| 68 | PI 186351 | | Nassella leucotricha (Trin. & Rupr.) R. W. Pohl | Australian Capital Territory, Australia | | | Historic | 1950 | COLLECTED | | | | | | | | 1667360 | PI 186351 |
| 69 | PI 153430 | No. 941 | Nassella philippii (Steud.) Barkworth | Uruguay | | | Historic | 1946 | COLLECTED | | | | | | | | 1890814 | PI 153430 |
| 70 | PI 153431 | No. 890 | Nassella charruana (Arechav.) Barkworth | Uruguay | | | Historic | 1946 | COLLECTED | | | | | | | | 1890815 | PI 153431 |
| 71 | PI 153432 | No. 891 | Nassella hyalina (Nees) Barkworth | Uruguay | | | Historic | 1946 | COLLECTED | | | | | | | | 1890816 | PI 153432 |
| 72 | PI 153433 | No. 893 | Nassella megapotamica (Spreng. ex Trin.) Barkworth | Uruguay | | | Historic | 1946 | COLLECTED | | | | | | | | 1890817 | PI 153433 |
| 73 | PI 153434 | No. 666 | Nassella neesiana (Trin. & Rupr.) Barkworth | Uruguay | | | Historic | 1946 | COLLECTED | | | | | | | | 1890818 | PI 153434 |
| 74 | PI 153435 | No. 894 | Nassella rosengurtii (Chase) Barkworth | Uruguay | | | Historic | 1946 | COLLECTED | | | | | | | | 1890819 | PI 153435 |
| 75 | PI 153436 | No. 893 | Nassella trichotoma (Nees) Hack. ex Arechav. | Uruguay | | | Historic | 1946 | COLLECTED | | | | | | | | 1890820 | PI 153436 |
| 76 | PI 150599 | No. 946 | Nassella philippii (Steud.) Barkworth | Uruguay | | | Historic | 1945 | COLLECTED | | Originally from Santa Clara del Timote (Florida) | | | | | | 1887552 | PI 150599 |
| 77 | PI 150600 | No. 890 | Nassella charruana (Arechav.) Barkworth | Uruguay | | | Historic | 1945 | COLLECTED | | | | | | | | 1887553 | PI 150600 |
| 78 | PI 150601 | No. 893 | Nassella megapotamica (Spreng. ex Trin.) Barkworth | Uruguay | | | Historic | 1945 | COLLECTED | | | | | | | | 1887554 | PI 150601 |
| 79 | PI 150602 | No. 666 | Nassella neesiana (Trin. & Rupr.) Barkworth | Uruguay | | | Historic | 1945 | COLLECTED | | | | | | | | 1887555 | PI 150602 |
| 80 | PI 144052 | | Nassella hyalina (Nees) Barkworth | Uruguay | | | Historic | 1942 | COLLECTED | | | | | | | | 1871836 | PI 144052 |
| 81 | PI 127959 | | Nassella viridula (Trin.) Barkworth | Canada | | | Historic | 1938 | COLLECTED | | | | | | | | 1844292 | PI 127959 |
| 82 | PI 62055 | | Nassella charruana (Arechav.) Barkworth | Montevideo, Uruguay | | | Historic | 1924 | COLLECTED | | | | | | | | 1663289 | PI 62055 |
| 83 | PI 62056 | | Nassella hyalina (Nees) Barkworth | Montevideo, Uruguay | | | Historic | 1924 | COLLECTED | | | | | | | | 1663290 | PI 62056 |
| 84 | PI 62058 | | Nassella mucronata (Kunth) R. W. Pohl | Montevideo, Uruguay | | | Historic | 1924 | COLLECTED | | | | | | | | 1663292 | PI 62058 |
| 85 | PI 36349 | | Nassella sp. | Bolivia | | | Historic | 1913 | COLLECTED | | | | | | | | 1601556 | PI 36349 |
| 86 | PI 5125 | | Nassella leucotricha (Trin. & Rupr.) R. W. Pohl | Texas, United States | | | Historic | 1900 | COLLECTED | | | | | | | | 1541105 | PI 5125 |
| 87 | W6 61793 | MT923-59 | Nassella viridula (Trin.) Barkworth | Montana, United States | W6 |  | | 2024 | | | | | | | Wild material | NA | 2168240 | W6 61793 |
| 88 | W6 61794 | MT923-60 | Nassella viridula (Trin.) Barkworth | Montana, United States | W6 |  | | 2024 | | | | | | | Wild material | NA | 2168241 | W6 61794 |
| 89 | W6 61144 RE | MT923-47 | Nassella viridula (Trin.) Barkworth | Montana, United States | W6 |  | | 2023 | | | | | | | Wild material | Recollection of MT923-32 | 2142099 | W6 61144 RE |
| 90 | W6 61146 RE | MT923-50 | Nassella viridula (Trin.) Barkworth | Montana, United States | W6 |  | | 2023 | | | | | | | Wild material | Recollection of MT923-38
| 2142101 | W6 61146 RE |
| 91 | W6 61149 | MT923-53 | Nassella viridula (Trin.) Barkworth | Montana, United States | W6 |  | | 2023 | | | | | | | Wild material | | 2142104 | W6 61149 |
| 92 | W6 61151 RE | MT923-55 | Nassella viridula (Trin.) Barkworth | Montana, United States | W6 |  | | 2023 | | | | | | | Wild material | Recollection of MT923-39
| 2142106 | W6 61151 RE |
| 93 | W6 60434 | MT923-38 | Nassella viridula (Trin.) Barkworth | Montana, United States | W6 |  | | 2022 | | | | | | | Wild material | | 2138372 | W6 60434 |
| 94 | W6 60435 | MT923-39 | Nassella viridula (Trin.) Barkworth | Montana, United States | W6 |  | | 2022 | | | | | | | Wild material | | 2138373 | W6 60435 |
| 95 | W6 59457 | MT923-32 | Nassella viridula (Trin.) Barkworth | Montana, United States | W6 | | | 2021 | | | | | | | Wild material | | 2120624 | W6 59457 |
| 96 | W6 58458 | CA190C-39 | Nassella pulchra (Hitchc.) Barkworth | California, United States | W6 | | | 2020 | | | | | | | Wild material | Anthers white, glumes purple, with conspicuously long awns (color fading to straw yellow in fall). | 2110352 | W6 58458 |
| 97 | W6 56445 | CA190B-138 | Nassella pulchra (Hitchc.) Barkworth | California, United States | W6 |  | | 2019 | | | | | | | Wild material | | 2091948 | W6 56445 |
| 98 | W6 53792 | NM080-45 | Nassella tenuissima (Trin.) Barkworth | New Mexico, United States | W6 |  | | 2018 | | | | | | | Wild material | | 1964370 | W6 53792 |
| 99 | W6 53445 | MT050-45 | Nassella viridula (Trin.) Barkworth | Montana, United States | W6 | | | 2018 | | | | | | | Wild material | | 1958180 | W6 53445 |
| 100 | NA 86580 | NA 86580 | Nassella tenuissima (Trin.) Barkworth | | NA | | Not Available | 2017 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Nassella tenuissima. | 2154791 | NA 86580 |
| 101 | W6 52151 | NM080-12 | Nassella tenuissima (Trin.) Barkworth | New Mexico, United States | W6 | | Not Available | 2017 | | | | | | | Wild material | | 1947286 | W6 52151 |
| 102 | W6 51589 | CBG-4169 | Nassella viridula (Trin.) Barkworth | South Dakota, United States | W6 | | | 2016 | | | | | | | Wild material | | 1942719 | W6 51589 |
| 103 | W6 49601 | CBG-2600 | Nassella viridula (Trin.) Barkworth | Colorado, United States | W6 |  | Not Available | 2015 | | | | | | | Wild material | | 1926070 | W6 49601 |
| 104 | W6 49639 | CBG-2663 | Nassella viridula (Trin.) Barkworth | South Dakota, United States | W6 |  | Not Available | 2015 | | | | | | | Wild material | | 1926104 | W6 49639 |
| 105 | W6 49281 | MT060-26 | Nassella viridula (Trin.) Barkworth | Montana, United States | W6 |  | | 2015 | | | | | | | Wild material | | 1925299 | W6 49281 |
| 106 | W6 47875 | CBG-2394 | Nassella viridula (Trin.) Barkworth | Colorado, United States | W6 |  | | 2014 | | | | | | | Wild material | | 1919800 | W6 47875 |
| 107 | NA 82174 | NA 82174 | Nassella tenuissima (Trin.) Barkworth | | NA | | Not Available | 2014 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Nassella tenuissima. | 2152843 | NA 82174 |
| 108 | W6 47164 | WY070-38 | Nassella viridula (Trin.) Barkworth | Wyoming, United States | W6 |  | | 2014 | | | | | | | Wild material | | 1916902 | W6 47164 |
| 109 | W6 46609 | MT923-9 | Nassella viridula (Trin.) Barkworth | Montana, United States | W6 | | Not Available | 2013 | | | | | | | Wild material | | 1913710 | W6 46609 |
| 110 | W6 46367 | CA160-02 | Nassella cernua (Stebbins & Á. Löve) Barkworth | California, United States | W6 |  | Not Available | 2013 | | | | | | | Wild material | | 1911332 | W6 46367 |
| 111 | W6 46368 | CA160-11 | Nassella cernua (Stebbins & Á. Löve) Barkworth | United States | W6 |  | Not Available | 2013 | | | | | | | Wild material | | 1911333 | W6 46368 |
| 112 | W6 46369 | CA360-121 | Nassella pulchra (Hitchc.) Barkworth | California, United States | W6 |  | Not Available | 2013 | | | | | | | Wild material | | 1911334 | W6 46369 |
| 113 | W6 46069 | CBG-1759 | Nassella viridula (Trin.) Barkworth | North Dakota, United States | W6 |  | Not Available | 2013 | | | | | | | Wild material | | 1908906 | W6 46069 |
| 114 | W6 45567 | CA190B-45 | Nassella cernua (Stebbins & Á. Löve) Barkworth | California, United States | W6 |  | | 2013 | | | | | | | Wild material | | 1906768 | W6 45567 |
| 115 | W6 45346 | UCBG-56 | Nassella pulchra (Hitchc.) Barkworth | California, United States | W6 | | Not Available | 2012 | | | | | | | Wild material | | 1905768 | W6 45346 |
| 116 | W6 45347 | UCBG-59 | Nassella pulchra (Hitchc.) Barkworth | California, United States | W6 | | Not Available | 2012 | | | | | | | Wild material | | 1905769 | W6 45347 |
| 117 | W6 45113 | CA190-1 | Nassella lepida (Hitchc.) Barkworth | California, United States | W6 |  | | 2012 | | | | | | | Wild material | | 1905185 | W6 45113 |
| 118 | W6 45114 | MT020-10 | Nassella viridula (Trin.) Barkworth | Montana, United States | W6 |  | | 2012 | | | | | | | Wild material | | 1905089 | W6 45114 |
| 119 | W6 45115 | MT020-11 | Nassella viridula (Trin.) Barkworth | Montana, United States | W6 |  | | 2012 | | | | | | | Wild material | | 1905090 | W6 45115 |
| 120 | W6 43574 | CA360-109 | Nassella pulchra (Hitchc.) Barkworth | California, United States | W6 |  | | 2012 | | | | | | | Wild material | | 1898646 | W6 43574 |
| 121 | W6 43575 | WY070-08 | Nassella viridula (Trin.) Barkworth | Wyoming, United States | W6 |  | | 2012 | | | | | | | Wild material | | 1898647 | W6 43575 |
| 122 | W6 43576 | WY070-09 | Nassella viridula (Trin.) Barkworth | Wyoming, United States | W6 |  | | 2012 | | | | | | | Wild material | | 1898648 | W6 43576 |
| 123 | W6 42862 | MSB172945 | Nassella leucotricha (Trin. & Rupr.) R. W. Pohl | Texas, United States | W6 |  | Not Available | 2011 | | | | | | | Wild material | | 1895322 | W6 42862 |
| 124 | W6 42604 | CO932-209 | Nassella viridula (Trin.) Barkworth | Colorado, United States | W6 |  | Not Available | 2011 | | | | | | | Wild material | | 1893507 | W6 42604 |
| 125 | W6 42051 | CA930C-36 | Nassella cernua (Stebbins & Á. Löve) Barkworth | California, United States | W6 |  | Not Available | 2011 | | | | | | | Wild material | | 1887360 | W6 42051 |
| 126 | W6 41343 | CA930B-003 | Nassella pulchra (Hitchc.) Barkworth | California, United States | W6 |  | | 2011 | | | | | | | Wild material | | 1868938 | W6 41343 |
| 127 | W6 41344 | CA930B-004 | Nassella pulchra (Hitchc.) Barkworth | California, United States | W6 |  | | 2011 | | | | | | | Wild material | | 1868939 | W6 41344 |
| 128 | W6 39669 | UCBG-42 | Nassella pulchra (Hitchc.) Barkworth | California, United States | W6 |  | | 2010 | | | | | | | Wild material | | 1849543 | W6 39669 |
| 129 | W6 39670 | UCBG-44 | Nassella pulchra (Hitchc.) Barkworth | California, United States | W6 |  | Not Available | 2010 | | | | | | | Wild material | | 1849544 | W6 39670 |
| 130 | NA 79364 | NA 79364 | Nassella tenuissima (Trin.) Barkworth | | NA | | Not Available | 2010 | | | | | | | Cultivated material | Full name as recorded at U.S. National Arboretum: Nassella tenuissima. Believe this material was meant to be accessioned with NA 79205-79215. See that sheet for rest of order. (SBL) | 2151754 | NA 79364 |
| 131 | W6 37494 | CO932-177 | Nassella viridula (Trin.) Barkworth | Colorado, United States | W6 |  | | 2010 | | | | | | | Wild material | | 1833625 | W6 37494 |
| 132 | W6 32663 | NM-93006-01 | Nassella tenuissima (Trin.) Barkworth | Arizona, United States | W6 |  | | 2007 | | | | | | | Wild material | | 1740402 | W6 32663 |
| 133 | W6 30057 | CA340-03-2 | Nassella pulchra (Hitchc.) Barkworth | California, United States | W6 |  | Not Available | 2007 | | | | | | | Wild material | | 1718940 | W6 30057 |
| 134 | W6 27862 | 97TXW8 | Nassella leucotricha (Trin. & Rupr.) R. W. Pohl | Oklahoma, United States | W6 | | Not Available | 2006 | COLLECTED | 06/12/1997 | Tillman county south of Hollister on highway 54 | 31.27861111, -98.87111111 | | Patchy distribution | Wild material | | 1704661 | W6 27862 |
| 135 | W6 27863 | 97TXW1 | Nassella leucotricha (Trin. & Rupr.) R. W. Pohl | Oklahoma, United States | W6 | | Not Available | 2006 | COLLECTED | 06/07/1997 | Carter county northwest of Lone Grove | 34.23027778, -97.38750000 | | Gravel roadside adjacebt to pasture. Healthy, somewhat disturbed tall grass site. | Wild material | | 1704662 | W6 27863 |
| 136 | W6 27864 | 98TXW1 | Nassella leucotricha (Trin. & Rupr.) R. W. Pohl | Oklahoma, United States | W6 | | Not Available | 2006 | COLLECTED | 04/15/1998 | Carter county west of Ardmore on the north side of highway 70 | 34.17305556, -97.19111111 | | Grazed roadway | Wild material | | 1704663 | W6 27864 |
| 137 | W6 27130 | CO932-019 | Nassella viridula (Trin.) Barkworth | Colorado, United States | W6 |  | Not Available | 2005 | | | | | | | Wild material | Grasslike 0.6-1.2 meters tall. | 1674165 | W6 27130 |
| 138 | NSL 439948 | LK415f Germplasm | Nassella cernua (Stebbins & Á. Löve) Barkworth | California, United States | W6 | | Not Available | 2004 | COLLECTED | PRE 2003 | | | | | Wild material | Can be used for restoration, critical area plantings, cover crop, and wildlife habitat. | 1694855 | NSL 439948 |
| 139 | NSL 423102 MSOS | LBJWC12 | Nassella leucotricha (Trin. & Rupr.) R. W. Pohl | Texas, United States | W6 | | Not Available | 2002 | | | | | | | Wild material | | 1642572 | NSL 423102 MSOS |
| 140 | W6 24212 | 97TXW3 | Nassella leucotricha (Trin. & Rupr.) R. W. Pohl | Oklahoma, United States | W6 | | Not Available | 2002 | COLLECTED | 06/07/1997 | Carter County; Lone Grove, Oklahoma; approx. 1 mile New Mexico of Hwy. 70 Newport Rd. intersect | 34.17750000, -97.27250000 | | Cultivated in the past. Cultivated and grazed now., slope 0-5%. Open, sand/loam, moist to seasonally dry, ridgetop. pH 6.2. | Wild material | Collection area 8,100 sq. meters. Population patchy and occasional; source is wild, in situ. | 1639439 | W6 24212 |
| 141 | W6 24213 | 97TXW4 | Nassella leucotricha (Trin. & Rupr.) R. W. Pohl | Oklahoma, United States | W6 | | Not Available | 2002 | COLLECTED | 06/10/1997 | Cotton County; Approx. 1 mile north of Hwy. 70 | 34.18777778, -98.38361111 | | Cultivated in past. Roadway/grazed now. Slope 6-10%, aspect W. Open, sand/loam, seasonally dry, mid slope. pH 7.3. | Wild material | Collection area 10 sq. meters. Population is patchy and abundant; source is wild, in situ. | 1639440 | W6 24213 |
| 142 | W6 24218 | 97TXW10 | Nassella leucotricha (Trin. & Rupr.) R. W. Pohl | Oklahoma, United States | W6 |  | Not Available | 2002 | COLLECTED | 06/12/1997 | Jackson County; Approx. 5 miles east of Duke, Oklahoma on Hwy 62 | 34.64222222, -99.52166667 | | Roadway, slope 0-5%, aspect S. Open, loam/clay, seasonally dry to always dry, lower slope/plateau. pH 7.9. | Wild material | Collection area 8 sq. meters. Population patchy and frequent; source is wild, in situ. | 1639445 | W6 24218 |
| 143 | W6 24219 | 97TXW11 | Nassella leucotricha (Trin. & Rupr.) R. W. Pohl | Oklahoma, United States | W6 | | | 2002 | COLLECTED | 06/12/1997 | Comanche County; South of Hwy 7, east of Lawton Oklahoma | 34.59333333, -98.33416667 | | Settlement, slope 0-5%. Open, loam/clay, seasonally dry to always dry, ridgetop/plateau. pH 7.1 to 7.8. | Wild material | Collection area 8,100 sq. meters. Population is uniform and abundant; source is wild, in situ. | 1639446 | W6 24219 |
| 144 | W6 24241 | 98TXW2 | Nassella leucotricha (Trin. & Rupr.) R. W. Pohl | Oklahoma, United States | W6 | | Not Available | 2002 | COLLECTED | 05/22/1998 | Carter County; East of southern Oklahoma Technology Center in Ardmore Oklahoma | 34.18722222, -97.08194444 | | slope 0-5%, aspect E/W. Open, clay, moist and seasonally dry, lower slope. | Wild material | Collection area 8,100 sq. meters. Population is patchy and abundant; source is wild, in situ. | 1639468 | W6 24241 |
| 145 | W6 24254 | 97TXW5 | Nassella leucotricha (Trin. & Rupr.) R. W. Pohl | Texas, United States | W6 | | Not Available | 2002 | COLLECTED | 06/10/1997 | Knox County; At intersection of Hwy. 6 and County Road 3300 | 33.72555556, -99.80083333 | | Roadway, slope 0-5%, aspect W. Open, loam, seasonally dry, mid slope. pH 7.8. | Wild material | Collection area 10 sq. meters. population is uniform and frequent; source is wild, in situ. | 1639481 | W6 24254 |
| 146 | W6 24255 | 97TXW6 | Nassella leucotricha (Trin. & Rupr.) R. W. Pohl | Texas, United States | W6 | | | 2002 | COLLECTED | 06/10/1997 | Hardeman County; One mile west of FM 1167 on Wolf Hunt Road | 34.21055556, -99.67472222 | | Roadway, slope 0-5%, aspect SW. Loam/clay, seasonally dry, lower slope. pH 8.0. | Wild material | Collection area 10 sq. meters. Population uniform and abundant; souce is wild, in situ. | 1639482 | W6 24255 |
| 147 | W6 24256 | 97TXW9 | Nassella leucotricha (Trin. & Rupr.) R. W. Pohl | Texas, United States | W6 | | Not Available | 2002 | COLLECTED | 06/12/1997 | Childress County; One mile south of Hwy. 62 and Hwy 83 intersection | 34.65222222, -10.18944444 | | Roadway, slope 0-5%, aspect W. Open, loam/clay, seasonally dry, plateau. pH 8.0 | Wild material | Collection area 2 sq. meters. Population is patchy and rare; source is wild, in situ. | 1639483 | W6 24256 |
| 148 | W6 20881 | T-868 | Nassella viridula (Trin.) Barkworth | New Mexico, United States | W6 | | | 1998 | COLLECTED | | 3 miles east of town of Capulin on Highway 64/87 in Union County. | 36.75000000, -103.93333333 | | | Wild material | | 1563532 | W6 20881 |
| 149 | W6 20887 | T-882 | Nassella viridula (Trin.) Barkworth | Colorado, United States | W6 | | Not Available | 1998 | COLLECTED | | 2.5 miles west of town of Cokedale on Highway 12 in Las Animas County. Burro Creek floodplain. | 37.13333333, -104.65000000 | | | Wild material | | 1563539 | W6 20887 |
| 150 | W6 20897 | T-929 | Nassella viridula (Trin.) Barkworth | Alberta, Canada | W6 | | Not Available | 1998 | COLLECTED | | 13 km east of Wainwright. | 52.83333333, -110.53333333 | | | Wild material | | 1563549 | W6 20897 |
| 151 | W6 20901 | T-937 | Nassella viridula (Trin.) Barkworth | Colorado, United States | W6 | | Not Available | 1998 | COLLECTED | | 2 km southeast of the Rio Blanco County/Garfield County line on Highway 13 in Garfield County. | 39.68333333, -107.91666667 | | | Wild material | | 1563553 | W6 20901 |
| 152 | W6 20904 | Acc:1146 | Nassella viridula (Trin.) Barkworth | Colorado, United States | W6 | | Not Available | 1998 | COLLECTED | | Fort Carson. | | | | Wild material | | 1563556 | W6 20904 |