| 0 | PI 675289 | UP-143 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Colorado, United States | W6 |  | | 2011 | | | | | | | Wild material | | 1856043 | PI 675289 |
| 1 | PI 660509 | 9076517 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Utah, United States | W6 | | | 2010 | DEVELOPED | 12/2009 | | | | | Cultivar | Recovery , western wheatgrass, (Pascopyrum smithii [Rydb.] A. Love) was released in December 2009 by the USDA-ARS, the U.S. Army Corps of Engineers-Engineer Research and Development Center, and the USDA-NRCS. Recovery was developed for reseeding rangelands following severe disturbance, frequent fires, and soil erosion with selection emphasis on improved and faster seedling establishment. Recovery was evaluated as TC3, TC-Rich, Army WWG, SERDP WWG, and NRCS-9076517, and was developed as a synthetic cultivar using two cycles of recurrent selection for plant vigor, seed yield, and rate of seedling emergence from a deep planting depth. In field evaluations, Recovery had increased frequency of seedlings during the establishment year, when averaged across eight locations, than other common western wheatgrasses. Recovery continued to have superior stand until 4 to 6 years after planting, when due to their rhizomatous nature, all the western wheatgrasses had similar stand frequencies. Recovery western wheatgrass provides land managers a new western wheatgrass cultivar with rapid establishment for use in areas that are frequently disturbed such as military training lands. The use of Recovery will help reduce soil erosion and weed invasion following such disturbances. | 1855264 | PI 660509 |
| 2 | PI 639864 | 98WW5 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | New Mexico, United States | W6 | | | 2002 | COLLECTED | 07/14/1998 | North of Des Moines, New Mexico | 36.77222222, -103.84111110 | | Roadway, slope 0-5%, aspect SE. Open, loam, seasonally dry, lower slope. pH 8.0 | Wild material | Collection area 1000 sq. meters. Population distribution patchy, abundance occasional, source wild, in situ. | 1639429 | PI 639864 |
| 3 | PI 659630 | 97WW5 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Texas, United States | W6 |  | | 2002 | COLLECTED | 07/08/1997 | On east side of Childress, Texas on Highway 287. | 34.42000000, -100.18861111 | | Grazed, 0-5% slope. Open light, loam, seasonally dry, floodplain. pH 8.1 | Wild material | Collection area is 3 sq. meters. Population is patchy and occasional; source is wild, in situ. | 1639489 | PI 659630 |
| 4 | PI 659632 | 97WW4 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Texas, United States | W6 | | | 2002 | COLLECTED | 07/08/1997 | One mile west of Mankins. | 33.78805556, -98.79500000 | | Roadway slope 0-5%, aspect E/W. Open, loam, seasonally dry to always dry, lower slope. pH 7.5. | Wild material | Collection area 20 sq. meters. Population is patchy and occasional; source is wild, in situ. | 1639514 | PI 659632 |
| 5 | PI 665518 | 98WW4 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | New Mexico, United States | W6 | | | 2002 | COLLECTED | 07/13/1998 | Southeast of Clayton on Unit 7 of Kiowa National Grassland. | 36.29416667, -103.05972220 | | Grazed. Slope 0-5%, aspect NE. Open, sand, seasonally dry/always dry. Alluvial fan/lower slope, dune. pH 8.0 | Wild material | Collection area = 20,000 sq. m. Population: distribution = patchy, abundance = frequent, source = wild, in situ. | 1639426 | PI 665518 |
| 6 | PI 693591 | 97WW23 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Oklahoma, United States | W6 | | | 2002 | COLLECTED | 07/17/1997 | Washita county; South of Elk City, Oklahoma | 35.27638889, -99.41388889 | | Roadway, slope 0-5%. Open, loam, seasonally dry, lower slope. pH 8.0 | Wild material | Collection area 70 sq. meters. population is uniform and frequent; source is wild, in situ. | 1639461 | PI 693591 |
| 7 | PI 693592 | 98WW2 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Texas, United States | W6 |  | | 2002 | COLLECTED | 07/13/1998 | Located 39 miles nortwest of Amarillo near intersection Hwy 354 and FM 2202 | 35.69083333, -102.34722220 | | Grazed/roadway, slope 0-5%, aspect E/SE. Open, sand/loam, seasonally dry, midslope/lower slope. pH 8.0. | Wild material | Collection area 2,000 sq. meters. Population is uniform and abundant; source is wild, in situ. | 1639500 | PI 693592 |
| 8 | PI 659631 | 97WW18 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Texas, United States | W6 | | | 2002 | COLLECTED | 07/16/1997 | Childress County; Texas near Hwy 62, west of Hollis Oklahoma | 34.67416667, -100.12277778 | | Roadway, slope 0-5%. Open, clay, seasonally dry to always dry, upper slope. pH 7.9. | Wild material | Collection area 6 sq. meters. Population is patchy and abundant; source is wild, in situ. | 1639513 | PI 659631 |
| 9 | PI 576178 | ND-WWG931 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1993 | DEVELOPED | PRE 12/16/1993 | | | | | Breeding material | Two cycles of phenotypic recurrent selection imposed for plant vigor, rhizomatous spread, density of foliage cover, and seed yield. Forage production equivalent to Flintlock and Walsh but less than Barton, Rodan, and Rosana. Seed head production equivalent to Walsh but less than Barton, Flintlock, Rodan, and Rosana. In vitro digestible organic matter averaged 658g kg-1 which was similar to Rosana and higher than Rodan or Barton | 1471149 | PI 576178 |
| 10 | PI 576179 | ND-WWG932 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1993 | DEVELOPED | PRE 12/16/1993 | | | | | Breeding material | One cycle of phenotypic recurrent selection for plant height, density of foliage cover, and rhizomatous spread at Mandan, ND. Plant vigor greater than Flintlock or Walsh, similar to ND-WWG931, and less than Barton, Rodan, or Rosana. Similar to ND-WWG931 for foliage density, however, its rate of rhizome production was 10% less. Matures four days earlier than ND-WWG931 | 1471150 | PI 576179 |
| 11 | PI 577673 | 1341 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | McIntosh County. LD: NWNW36 129N 67W | | 578 | | Wild material | | 1472644 | PI 577673 |
| 12 | PI 577674 | 58 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Divide County. LD: SESE27 160N 97W | | 608 | | Wild material | | 1472645 | PI 577674 |
| 13 | PI 577675 | 734 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | South Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Ziebach County. LD: SWSE36 13N 20E | | 730 | | Wild material | | 1472646 | PI 577675 |
| 14 | PI 598372 | 1458 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | South Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Perkins County. LD: SWSW36 21N 16E | | 790 | | Wild material | | 1024019 | PI 598372 |
| 15 | PI 598373 | 1585 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | McKenzie County. LD: NENE36 149N 99W | | | | Wild material | | 1024023 | PI 598373 |
| 16 | PI 598374 | 1665 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Morton County. LD: NWSE36 138N 81W | | 486 | | Wild material | | 1024038 | PI 598374 |
| 17 | PI 598375 | 169 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Divide County. LD: NENE36 162N 95W | | 638 | | Wild material | | 1024042 | PI 598375 |
| 18 | PI 598376 | 1799 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Grant County. LD: NENE36 136N 90W | | 638 | | Wild material | | 1024049 | PI 598376 |
| 19 | PI 598377 | 1866 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Bowman County. LD: SWNW36 131N 105W | | 882 | | Wild material | | 1024053 | PI 598377 |
| 20 | PI 598378 | 1903 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Oliver County. LD: NENE36 142N 86W | | 638 | | Wild material | | 1024059 | PI 598378 |
| 21 | PI 598379 | 194 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Slope County. LD: NENE36 134N 98W | | 806 | | Wild material | | 1024062 | PI 598379 |
| 22 | PI 598380 | 212 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Burleigh County. LD: NESW36 140N 79W | | 562 | | Wild material | | 1024067 | PI 598380 |
| 23 | PI 598381 | 552 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | South Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Perkins County. LD: NWNE36 22N 13E | | 790 | | Wild material | | 1024077 | PI 598381 |
| 24 | PI 598382 | 564 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | South Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Perkins County. LD: NWNW36 17N 16E | | 851 | | Wild material | | 1024080 | PI 598382 |
| 25 | PI 598383 | 628 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | South Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Meade County. LD: NWNW36 3N 12E | | 851 | | Wild material | | 1024092 | PI 598383 |
| 26 | PI 598384 | 698 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | South Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Dewey County. LD: NENW 1 13N 25E | | 638 | | Wild material | | 1024103 | PI 598384 |
| 27 | PI 598385 | 729 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | South Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Corson County. LD: NWNW36 18W 25E | | | | Wild material | | 1024110 | PI 598385 |
| 28 | PI 598386 | 744 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | South Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Corson County. LD: SWSW36 19W 24E | | | | Wild material | | 1024121 | PI 598386 |
| 29 | PI 598387 | 849 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | South Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Haakon County. LD: NWSE36 2N 25E | | 547 | | Wild material | | 1024133 | PI 598387 |
| 30 | PI 610967 | 1030 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Golden Valley County. LD: NENE36 139N 106W | | 790 | | Wild material | | 1023980 | PI 610967 |
| 31 | PI 610968 | 1213 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | South Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Stanley County. LD: SESE36 7N 28E | | 608 | | Wild material | | 1023987 | PI 610968 |
| 32 | PI 610969 | 1368 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | South Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Potter County. LD: SENE36 119N 73W | | 578 | | Wild material | | 1024012 | PI 610969 |
| 33 | PI 610970 | 1292 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | South Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Corson County. LD: SWSW36 21N 24E | | 668 | | Wild material | | 1023998 | PI 610970 |
| 34 | PI 610971 | 124 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Ward County. LD: SWSE28 155N 83W | | 674 | | Wild material | | 1023990 | PI 610971 |
| 35 | PI 632508 | 1331 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | South Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Fall River County. LD: NENE36 9S 1 E | | 1110 | | Wild material | | 1024001 | PI 632508 |
| 36 | PI 632578 | 398 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | South Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Custer County. LD: SENW36 3S 1E | | 1556 | | Wild material | | 1024070 | PI 632578 |
| 37 | PI 634300 | 84 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Ward County. LD: NWSE36 159N 88W | | 678 | | Wild material | | 1024126 | PI 634300 |
| 38 | PI 655078 | 672 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | South Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | Tripp County. LD: SWSW36 103N 77W | | 502 | | Wild material | | 1024099 | PI 655078 |
| 39 | PI 691899 | 1628 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | McLean County. LD: SESE36 150N 79W | | 599 | | Wild material | | 1024028 | PI 691899 |
| 40 | PI 691900 | 1641 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1990 | COLLECTED | 1979 | McLean County. LD: SESE36 144N 81W | | 578 | | Wild material | | 1024032 | PI 691900 |
| 41 | PI 578780 | 'RODAN' | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1984 | DEVELOPED | PRE 1984 | | | | | Cultivar | Rhizomatous and forms dense blue-green sward. Leaves less heavily veined and thinner than other western wheatgrass cvs. Average yield of 200 kg/ha more forage than other western wheatgrass cvs. Similar to Rosana in area of adaptation but more productive than Rosana on coarse- textured soils. Seed has short awn that distracts from seed quality but is similar to Rosana in seed yield. Moderate to good resistance to stem rust (Puccinia graminis) | 1473751 | PI 578780 |
| 42 | PI 477993 | T 5659 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | North Dakota, United States | W6 | | | 1983 | COLLECTED | 07/1983 | Mandan, North Dakota | | | | Cultivated material | Collected by G. A. Rogler. Potentially more cold tolerant than 'Arriba' and 'Rosana'. Outstanding in initial evaluation trials. | 1372929 | PI 477993 |
| 43 | PI 469236 | 'ROSANA' | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Montana, United States | W6 | | | 1982 | COLLECTED | 1959 | Native Meadows along Porcupine Creek northwest of Foryth, Mo ntana | | | | Cultivar | Released in 1972. Used for irrigated pasture or hay in short water supply areas and for reseeding range. Drought tolerant. | 1364172 | PI 469236 |
| 44 | PI 432399 | PMT-905 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Mississippi, United States | | | Historic | 1979 | DONATED | 02/1979 | | | | | | | 1327335 | PI 432399 |
| 45 | PI 432400 | PMT-662 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Mississippi, United States | | | Historic | 1979 | DONATED | 02/1979 | | | | | | | 1327336 | PI 432400 |
| 46 | PI 432402 | 'Arriba' | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Colorado, United States | W6 | | | 1979 | COLLECTED | | West of Flagler, Kit Carson County, Colorado | | | | Cultivar | Collected August 17, 1957 by J. A. Downs. Joint release of New Mexico and Colorado Agricultural Experiment Station and Soil Conservation Service, U.S. Department of Agriculture. Western wheatgrass is a cool season, rhizomatous, sod-forming, perennial grass. Culms are erect, 30-60 cm tall with creeping rhizomes; blades are firm, stiff, mostly flat when fresh, involute on drying, strongly nerved, scabrous, to 4 mm wide and tapering to a sharp point. Flowering spikes are erect, 7-15cm long; spikelets are closely inbricate, 6-10 flowered, 1-2 cm long; glumes are rigid, tapering to a short awn, and are faintly nerved. Entire plant is usually glaucous and gray-green in color. | 1327338 | PI 432402 |
| 47 | PI 421274 | | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Kansas, United States | W6 | | | 1977 | COLLECTED | | Barton County | | | | Cultivar | Released 1970 10 | 1318011 | PI 421274 |
| 48 | PI 578777 | PM C 30 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | New Mexico, United States | W6 | | | 1977 | DONATED | 1977 | | | | | Cultivar | | 1473748 | PI 578777 |
| 49 | PI 578779 | P 727 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Washington, United States | W6 | | | 1977 | DONATED | 1977 | | | | | Cultivar | | 1473750 | PI 578779 |
| 50 | PI 432401 | M 1032 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Mississippi, United States | W6 | | | 1975 | DONATED | 08/01/1975 | | | | | Cultivated material | | 1327337 | PI 432401 |
| 51 | PI 578778 | 'BARTON' | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Kansas, United States | W6 | | | 1974 | DONATED | 1974 | | | | | Cultivar | | 1473749 | PI 578778 |
| 52 | PI 387882 | 99 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Canada | W6 | | | 1974 | COLLECTED | 1973 | Kleskun Hills | | | | Wild material | | 1291381 | PI 387882 |
| 53 | PI 387885 | 103 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Canada | W6 | | | 1974 | COLLECTED | 1973 | Dunvegen | | | | Wild material | | 1291383 | PI 387885 |
| 54 | PI 236677 | | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Canada | W6 | | | 1957 | COLLECTED | | From along the Kickinghorse River, Golden, British Columbia. | | | | Wild material | | 1185891 | PI 236677 |
| 55 | PI 236678 | | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Canada | W6 | | | 1957 | COLLECTED | | From plains along Waterton Lake. | | | | Wild material | | 1185892 | PI 236678 |
| 56 | PI 232119 | | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Montana, United States | W6 | | | 1955 | COLLECTED | 01/01/1955 | From North Pacific railroad right-of-way, 2 miles northwest of Bozeman, Route 191, Gallatin County, Montana. | | | | Wild material | | 1184153 | PI 232119 |
| 57 | PI 232120 | | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Montana, United States | W6 | | | 1955 | COLLECTED | 01/01/1955 | From scattered along Route 10 north, 2 miles southeast of Winston, Broadwater County, Montana. | | 1490 | | Wild material | | 1184154 | PI 232120 |
| 58 | PI 232121 | | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Montana, United States | W6 | | | 1955 | COLLECTED | 01/01/1955 | From scattered on shallow clay 9 miles north of Augusta, Route 33, Teton County, Montana. | | | | Wild material | | 1184155 | PI 232121 |
| 59 | PI 232122 | | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Montana, United States | W6 | | | 1955 | COLLECTED | 01/01/1955 | From open field 1.5 miles east of Anaconda, road across the Continental Divide to Wisdom, Deer Lodge County, Montana. | | 1216 | | Wild material | | 1184156 | PI 232122 |
| 60 | PI 214467 | Western wheatgrass | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Nebraska, United States | | | Historic | 1954 | COLLECTED | 1953 | Thirteen miles north of Kingsley Dam, Arthur County. | | | | | | 1176259 | PI 214467 |
| 61 | PI 186704 | No. 49160 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Nebraska, United States | | | Historic | 1950 | COLLECTED | 09/21/1949 | | | | | | | 1667652 | PI 186704 |
| 62 | PI 186705 | No. 49161 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Nebraska, United States | | | Historic | 1950 | COLLECTED | 09/24/1949 | | | | | | | 1667672 | PI 186705 |
| 63 | PI 186706 | No. 49193 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Nebraska, United States | | | Historic | 1950 | COLLECTED | 09/24/1949 | | | | | | | 1667673 | PI 186706 |
| 64 | PI 186707 | No. 49195 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Nebraska, United States | | | Historic | 1950 | COLLECTED | 09/24/1949 | | | | | | | 1667674 | PI 186707 |
| 65 | PI 149392 | 'FC 22856' | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Maryland, United States | | | Historic | 1944 | COLLECTED | | | | | | | | 1883936 | PI 149392 |
| 66 | PI 146925 | No. 22856 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Maryland, United States | | | Historic | 1943 | COLLECTED | | South Dakota | | | | | | 1880267 | PI 146925 |
| 67 | PI 146396 | | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Maryland, United States | | | Historic | 1943 | COLLECTED | | | | | | | | 1879539 | PI 146396 |
| 68 | PI 115295 | | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Canada | | | Historic | 1936 | COLLECTED | | | | | | | | 1815195 | PI 115295 |
| 69 | PI 115296 | | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Canada | | | Historic | 1936 | COLLECTED | | | | | | | | 1815196 | PI 115296 |
| 70 | PI 91373 | Strain No. 22 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Saskatchewan, Canada | | | Historic | 1931 | COLLECTED | | | | | | | | 1777789 | PI 91373 |
| 71 | PI 91374 | Strain No. 23 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Saskatchewan, Canada | | | Historic | 1931 | COLLECTED | | | | | | | | 1777790 | PI 91374 |
| 72 | PI 91378 | 'Mecca' | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Saskatchewan, Canada | | | Historic | 1931 | COLLECTED | | | | | | | | 1777794 | PI 91378 |
| 73 | PI 21866 | | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | District of Columbia, United States | | | Historic | 1908 | COLLECTED | | | | | | | | 1521369 | PI 21866 |
| 74 | PI 21500 | | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | District of Columbia, United States | | | Historic | 1907 | COLLECTED | | | | | | | | 1533276 | PI 21500 |
| 75 | PI 17699 | | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Montana, United States | | | Historic | 1906 | COLLECTED | | | | | | | | 1531489 | PI 17699 |
| 76 | PI 16340 | | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Washington, United States | | | Historic | 1905 | COLLECTED | 1905 | | | | | | | 1574098 | PI 16340 |
| 77 | PI 16341 | | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Montana, United States | | | Historic | 1905 | COLLECTED | | | | | | | | 1574099 | PI 16341 |
| 78 | PI 13441 | Agrost. 1942 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Kansas, United States | | | Historic | 1905 | COLLECTED | | | | | | | | 1571899 | PI 13441 |
| 79 | PI 13442 | Agrost. 1982 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Minnesota, United States | | | Historic | 1905 | COLLECTED | | | | | | | | 1571900 | PI 13442 |
| 80 | PI 13443 | Agrost. 1001 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | District of Columbia, United States | | | Historic | 1905 | COLLECTED | | | | | | | | 1571901 | PI 13443 |
| 81 | PI 13504 | | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Montana, United States | | | Historic | 1905 | COLLECTED | 04/1905 | | | | | | | 1571949 | PI 13504 |
| 82 | W6 62001 | UT070-16 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Utah, United States | W6 |  | | 2024 | | | | | | | Wild material | Narrow patch of BLM land BRTE cheatgrass is the invasive present | 2168400 | W6 62001 |
| 83 | W6 59594 | CO932-402 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Colorado, United States | W6 | | | 2021 | | | | | | | Wild material | Culms erect, sheaths open, blades flat to in-rolled, rigid upper surface striate, inflorescence erect terminal spike, spikelet tightly overlapped | 2120760 | W6 59594 |
| 84 | W6 58380 | CO932-379 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Colorado, United States | W6 | | | 2020 | | | | | | | Wild material | Blue glaucous leaves and stems, rhizomatous, inflorescence a narrow spike. | 2109943 | W6 58380 |
| 85 | W6 53656 | CA370-244 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Nevada, United States | W6 | | | 2018 | | | | | | | Wild material | | 1964234 | W6 53656 |
| 86 | W6 53166 | NM930-218 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | New Mexico, United States | W6 |  | | 2018 | | | | | | | Wild material | | 1957516 | W6 53166 |
| 87 | W6 53170 | NM930-222 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | New Mexico, United States | W6 |  | | 2018 | | | | | | | Wild material | | 1957520 | W6 53170 |
| 88 | W6 51752 | NM018-36 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | New Mexico, United States | W6 | | Not Available | 2017 | | | | | | | Wild material | | 1943599 | W6 51752 |
| 89 | W6 50706 | CBG2014-3233 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Iowa, United States | W6 | | Not Available | 2015 | | | | | | | Wild material | | 1931997 | W6 50706 |
| 90 | W6 50737 | CBG2014-3294 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Colorado, United States | W6 | | | 2015 | | | | | | | Wild material | | 1932025 | W6 50737 |
| 91 | W6 50483 | WY932A-204 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Wyoming, United States | W6 | | Not Available | 2015 | | | | | | | Wild material | | 1930494 | W6 50483 |
| 92 | W6 47172 | WY070-39 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Wyoming, United States | W6 |  | | 2014 | | | | | | | Wild material | | 1916910 | W6 47172 |
| 93 | W6 40242 | UP-142 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Colorado, United States | W6 |  | Not Available | 2011 | | | | | | | Wild material | | 1856044 | W6 40242 |
| 94 | W6 39134 | WY930-17 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Wyoming, United States | W6 |  | | 2010 | | | | | | | Wild material | | 1842559 | W6 39134 |
| 95 | W6 24206 | 98WW6 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | New Mexico, United States | W6 | | Not Available | 2002 | COLLECTED | 07/14/1998 | Harding County; West of Mills, New Mexico. Nothwest section of Unit 87, Kiowa National Grassland. | 36.07388889, -10.32194444 | | Grazed now and in past. Slope 0-5%, aspect E/SE. Open, loam/clay, always dry, ridgetop. pH 8.0. | Wild material | Collection area 20,000 sq. meters. Population patchy and frequent; source wild, in situ. | 1639433 | W6 24206 |
| 96 | W6 24207 | 98WW7 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | New Mexico, United States | W6 | | Not Available | 2002 | COLLECTED | 07/15/1998 | Quay County; South of Tucumcari, New Mexico on Hwy 209. | 35.02027778, -10.73777778 | | Roadway. Slope 0-5% and 6-10%, aspect W. Open, loam/clay, seasonally dry to always dry, lower slope. pH 8.0. | Wild material | Collection area 10 sq. meters. Population patchy and occasional, source is wild, in situ. | 1639434 | W6 24207 |
| 97 | W6 24214 | 97WW12 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Oklahoma, United States | W6 | | Not Available | 2002 | COLLECTED | 06/10/1997 | Cotton County; 1 mile north of Hwy 70 | 34.18777778, -98.38361111 | | Cultivated in past. Grazed/roadway 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. | 1639441 | W6 24214 |
| 98 | W6 24216 | 97WW3 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Oklahoma, United States | W6 | | | 2002 | COLLECTED | 07/08/1997 | Tillman County; South of Hollister, Oklahoma on Hwy 54 | 34.27861111, -98.87111111 | | Grazed/roadway. Slope 0-5%, aspect W. Open, loam/clay, seasonally dry to always dry, lower slope. pH 7.9. | Wild material | Collection area 5 sq. meters. Population is patchy and occasional; source is wild, in situ. | 1639443 | W6 24216 |
| 99 | W6 24221 | 97WW10 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Oklahoma, United States | W6 | | Not Available | 2002 | COLLECTED | 07/14/1997 | Carter County; Northwest of Healdton, Oklahoma, west of intersection of Hwy 76 and Oil City Road | 34.27388889, -97.51138889 | | Roadway. Slope 0-5%, aspect S. Loam/clay, seasonally dry to always dry, lower slope. pH8.5. | Wild material | Collection area 10 sq. meters. population is patchy and abundant; souce is wild, in situ. | 1639448 | W6 24221 |
| 100 | W6 24224 | 97WW15 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Oklahoma, United States | W6 | | | 2002 | COLLECTED | 07/15/1997 | Kiowa County; Near intersection of Hwy 54 and Ozark Trail Road. | 35.01444444, -98.86805556 | | Roadway, slope 0-5%. Open, loam/clay, moist to seasonally dry, floodplain. pH 8.0. | Wild material | Collection area 7 sq. meters. Source is wild, in situ. | 1639451 | W6 24224 |
| 101 | W6 24225 | 97WW16 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Oklahoma, United States | W6 | | | 2002 | COLLECTED | 07/15/1997 | Kiowa County; South of Gotebo, Oklahoma | 35.03166667, -98.88444444 | | Roadway, slope 0-5%. Open, loam/clay, seasonally dry to always dry, plateau. pH 6.7. | Wild material | Collection area 10 sq. meters. Population is patchy and occasional; source is wild, in situ. | 1639452 | W6 24225 |
| 102 | W6 24227 | 97WW17 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Oklahoma, United States | W6 | | Not Available | 2002 | COLLECTED | 07/16/1997 | Jackson County; Near Hwy 62 | 34.66500000, -99.58305556 | | Roadway, slope 0-5%. Open, loam/clay, seasonally dry, floodplain. pH 7.9. | Wild material | Collection area 20 sq. meters. Population is uniform and abundant; source is wild, in situ. | 1639454 | W6 24227 |
| 103 | W6 24228 | 97WW19 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Oklahoma, United States | W6 | | Not Available | 2002 | COLLECTED | 07/16/1997 | Greeg County; East of Reed, Oklahoma. | 34.90055556, -99.65805556 | | Roadway. Slope 6-10%, aspect SW/W. Open, loam, seasonally dry, mid slope. pH 7.3. | Wild material | Collection area 20 sq. meters. Population is uniform and frequent; source is wild, in situ. | 1639455 | W6 24228 |
| 104 | W6 24230 | 97WW21 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Oklahoma, United States | W6 |  | Not Available | 2002 | COLLECTED | 07/16/1997 | Greer County. | 34.97333333, -99.80000000 | | Grazed and roadway, slope 6-10%. Aspect SE, open light, loam, always dry, ridgetop. pH=7.8. | Wild material | Collection area 3 sq. meters. Population is patchy and occasional; source is wild, in situ. | 1639457 | W6 24230 |
| 105 | W6 24231 | 97WW22 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Oklahoma, United States | W6 | | | 2002 | COLLECTED | 07/16/1997 | Beskham county; Hwy. 30 at the Beckham County, Harmon Colorado Oklahoma line. | 35.03000000, -99.90222222 | | Roadway. Slope 0-5%, aspect S. Open, loam/clay, seasonally dry to always dry, ridgetop/upper slope. pH7.6. | Wild material | Collection area 5 sq. meters. Population is patchy and frequent; source is wild, in situ. | 1639458 | W6 24231 |
| 106 | W6 24235 | 97WW25 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Oklahoma, United States | W6 | | Not Available | 2002 | COLLECTED | 07/27/1997 | Cimarron County; Between Boise City, Oklahoma and Colorado border on Hwy 287. South of Cimmaron | 36.87277778, -10.51722222 | | Roadway, slope 0-5%. Open, loam, seasonally dry to always dry, mid slope. pH 8.1 | Wild material | Colletion area 5 sq. meters. Population is patchy and occasional; source is wild, in situ. | 1639462 | W6 24235 |
| 107 | W6 24238 | 97WW27 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Oklahoma, United States | W6 | | | 2002 | COLLECTED | 07/27/1997 | About 1 mile south of Hwy 412. | 36.60527778, -100.49611110 | | Roadway, slope 0-5%. Open, loam, seasonally dry to always dry, ridgetop. pH 8.1. | Wild material | Collection area 10 sq. meters. Population is uniform and occasional; source is wild, in situ. | 1639465 | W6 24238 |
| 108 | W6 24257 | 97WW1 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Texas, United States | W6 |  | Not Available | 2002 | COLLECTED | 07/07/1997 | Cooke County; Northeast of St. Jo, Texas | 33.71888889, -97.43111111 | | Open, loam/clay, moist to seasonally dry, alluvial fan. pH 7.7. | Wild material | Collection area 500 sq. meters. Population is uniform adn abundant; source is wild, in situ. | 1639484 | W6 24257 |
| 109 | W6 24264 | 97WW6 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Texas, United States | W6 | | Not Available | 2002 | COLLECTED | 07/08/1997 | Cottle County; Near a bridge on FM 2278 | 33.94555556, -10.36277778 | | Roadway, slope 0-5%. Open, sand/loam, seasonally dry, floodplain. pH 7.2. | Wild material | Collection area 3 sq. meters. Population is patchy and occasional; source is wild, in situ. | 1639491 | W6 24264 |
| 110 | W6 24265 | 97WW7 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Texas, United States | W6 | | | 2002 | COLLECTED | 07/08/1997 | Located approximately 1 mile east of the King County and Knox County line on north side of Hwy 82. | 33.58250000, -99.97722222 | | Roadway, slope 0-5%. Open, clay, seasonally dry, floodplain. pH 8.1. | Wild material | Collection area 5 sq. meters. Population is patchy and frequent; source is wild, in situ. | 1639492 | W6 24265 |
| 111 | W6 24276 | 98WW11 | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Texas, United States | W6 | | Not Available | 2002 | COLLECTED | 07/15/1998 | Lamb County, West of Littlefield, Texas on Hwy 54 | 33.90972222, -10.43083333 | | Roadway, slope 0-5% and 6-10%, aspect S. Openn sand/loam, seasonally dry to always dry, plateau. pH 8.1. | Wild material | Collection area 10 sq. meters. Population is patchy and occasional; source is wild, in situ. | 1639503 | W6 24276 |
| 112 | CSR 477 | 'Walsh' | Pascopyrum smithii (Rydb.) Barkworth & D. R. Dewey | Alberta, Canada | | | Historic | 1984 | DEVELOPED | | | | | | Cultivar | Well adapted for pasture and hay production. | 1006623 | CSR 477 |