| 0 | PI 516506 | GR 461 | Helictochloa bromoides (Gouan) Romero Zarco | Morocco | | | Historic | 1986 | COLLECTED | 07/15/1983 | 5km NW of Aknoul, near Forest Service Station, 1 km S of Road S 304. | 34.68333333, -3.90000000 | 1100 | | Wild material | | 1411442 | PI 516506 |
| 1 | PI 516507 | GR 557 | Helictochloa bromoides (Gouan) Romero Zarco | Morocco | | | Historic | 1986 | COLLECTED | 07/20/1983 | 13km E of junction of Roads P 24 and 4629 on Road 4630, 27km NE of Ifrane. | | 1625 | | Wild material | | 1411443 | PI 516507 |
| 2 | PI 422465 | | Helictochloa pratensis (L.) Romero Zarco | Rheinland-Pfalz, Germany | | | Historic | 1977 | DONATED | 12/30/1977 | | | | | | | 1318288 | PI 422465 |
| 3 | PI 318950 | A-168 | Helictochloa bromoides (Gouan) Romero Zarco | Castilla-La Mancha, Spain | | | Historic | 1967 | COLLECTED | 1963 | Ruidera | 38.96666667, -2.88333333 | 804 | | Wild material | | 1237284 | PI 318950 |
| 4 | PI 318951 | B-57 | Helictochloa bromoides (Gouan) Romero Zarco | Castilla-La Mancha, Spain | | | Historic | 1967 | COLLECTED | 07/1962 | Campillo de Altobuey | 39.60000000, -1.80000000 | 904 | | Wild material | | 1237285 | PI 318951 |
| 5 | PI 318952 | B-178 | Helictochloa bromoides (Gouan) Romero Zarco | Castilla-La Mancha, Spain | | | Historic | 1967 | COLLECTED | 1964 | Olmeda del Rey | 39.80000000, -2.08333333 | 960 | | Wild material | | 1237286 | PI 318952 |
| 6 | PI 318953 | D-95 | Helictochloa bromoides (Gouan) Romero Zarco | Castilla-La Mancha, Spain | | | Historic | 1967 | COLLECTED | 06/1965 | Aina | | | | | | 1711054 | PI 318953 |
| 7 | PI 318954 | F-110 | Helictochloa bromoides (Gouan) Romero Zarco | Aragón, Spain | | | Historic | 1967 | COLLECTED | 1965 | Montalban | 40.83333333, -0.80000000 | 861 | | Wild material | | 1237287 | PI 318954 |
| 8 | PI 318955 | G-24 | Helictochloa bromoides (Gouan) Romero Zarco | Castilla-La Mancha, Spain | | | Historic | 1967 | COLLECTED | 07/1962 | Urda | 39.41666667, -3.70000000 | 757 | | Wild material | | 1237288 | PI 318955 |
| 9 | PI 318956 | H-2 | Helictochloa bromoides (Gouan) Romero Zarco | Castilla-La Mancha, Spain | | | Historic | 1967 | COLLECTED | 07/1962 | Campillo de Altobuey, Cuenca | 39.60000000, -1.80000000 | 904 | | Wild material | | 1237289 | PI 318956 |
| 10 | PI 318957 | B-40 | Helictochloa marginata (Lowe) Romero Zarco | Andalucía, Spain | | | Historic | 1967 | COLLECTED | 06/1962 | Medinasidonia | | | | | | 1711055 | PI 318957 |
| 11 | PI 302859 | Col. No. A-24 | Helictochloa bromoides (Gouan) Romero Zarco | Aragón, Spain | | | Historic | 1964 | COLLECTED | | | | | | | | 1700124 | PI 302859 |
| 12 | PI 302860 | A-133 | Helictochloa bromoides (Gouan) Romero Zarco | Castilla-La Mancha, Spain | | | Historic | 1964 | COLLECTED | | | 40.00000000, -2.00000000 | | | Wild material | | 1227677 | PI 302860 |
| 13 | PI 302861 | B-33 | Helictochloa bromoides (Gouan) Romero Zarco | Aragón, Spain | | | Historic | 1964 | COLLECTED | | | 40.66666667, -0.66666667 | | | Wild material | | 1227678 | PI 302861 |
| 14 | PI 302862 | B-41 | Helictochloa bromoides (Gouan) Romero Zarco | Aragón, Spain | | | Historic | 1964 | COLLECTED | | | 41.58333333, -1.00000000 | | | Wild material | | 1227679 | PI 302862 |
| 15 | PI 302863 | Col. No. B-171 | Helictochloa bromoides (Gouan) Romero Zarco | Castilla-La Mancha, Spain | | | Historic | 1964 | COLLECTED | | | | | | | | 1680256 | PI 302863 |
| 16 | PI 302864 | Col. No. D-46 | Helictochloa bromoides (Gouan) Romero Zarco | Murcia, Región de, Spain | | | Historic | 1964 | COLLECTED | | | | | | | | 1680257 | PI 302864 |
| 17 | PI 234877 | 9335 | Helictochloa hookeri (Scribn.) Romero Zarco subsp. hookeri | Alberta, Canada | | | Historic | 1956 | COLLECTED | | 2 mi. east of Fort Saskatchewan | | | | | | 1853080 | PI 234877 |
| 18 | PI 234878 | 9375 | Helictochloa hookeri (Scribn.) Romero Zarco subsp. hookeri | Alberta, Canada | | | Historic | 1956 | COLLECTED | | Fair grounds, Fort Saskatchewan | 53.71666667, -113.20000000 | 623 | | | | 1185242 | PI 234878 |
| 19 | PI 234879 | 9382 | Helictochloa hookeri (Scribn.) Romero Zarco subsp. hookeri | Alberta, Canada | | | Historic | 1956 | COLLECTED | | 2 miles below Fort Saskatchewan | | | | | | 1185243 | PI 234879 |
| 20 | PI 234880 | 9385 | Helictochloa hookeri (Scribn.) Romero Zarco subsp. hookeri | Alberta, Canada | | | Historic | 1956 | COLLECTED | | Fair grounds-native prairie-Fort Saskatchewan | 53.71666667, -113.20000000 | 623 | | | | 1185244 | PI 234880 |
| 21 | PI 234738 | 15981 | Helictochloa bromoides (Gouan) Romero Zarco | Spain | | | Historic | 1956 | COLLECTED | 1956 | 20km west of Sarinena, Aragon Province | | | saline land | Wild material | | 1853075 | PI 234738 |
| 22 | PI 234739 | 16037 | Helictochloa bromoides (Gouan) Romero Zarco | Spain | | | Historic | 1956 | COLLECTED | 1956 | Boltana, Pyrennes Mountains | | | rocky soil | Wild material | | 1853076 | PI 234739 |
| 23 | PI 234740 | 16041 | Helictochloa bromoides (Gouan) Romero Zarco | Spain | | | Historic | 1956 | COLLECTED | 1956 | near Mediano, Pyrennes foothills | | | rocky slope | Wild material | | 1853077 | PI 234740 |
| 24 | PI 234741 | 16056 | Helictochloa bromoides (Gouan) Romero Zarco | Spain | | | Historic | 1956 | COLLECTED | 1956 | Montalban, Teruel Province | | | protected slope among young pines | Wild material | | 1853078 | PI 234741 |
| 25 | PI 234711 | 16066 | Helictochloa bromoides (Gouan) Romero Zarco | France | | | Historic | 1956 | COLLECTED | 1956 | 20km northwest of Montpellier | | | rocky terrain | Wild material | | 1853028 | PI 234711 |
| 26 | PI 228398 | 15477 | Helictochloa pratensis (L.) Romero Zarco | Āz̄ārbāyjān-e Shārqī, Iran | | | Historic | 1955 | COLLECTED | 1955 | east base of Kuhe Sahand | 37.73333333, 46.83333333 | 3040 | | | | 1182469 | PI 228398 |
| 27 | PI 136313 | No. 1426 | Helictochloa pratensis (L.) Romero Zarco | Canada | | | Historic | 1940 | COLLECTED | | | | | | | | 1854673 | PI 136313 |
| 28 | PI 135562 | No. 13 | Helictochloa hookeri (Scribn.) Romero Zarco subsp. schelliana (Hack.) Romero Zarco | Heilongjiang Sheng, China | | | Historic | 1940 | COLLECTED | 09/10/1939 | Desert district of Anda | | | | | | 1853755 | PI 135562 |
| 29 | PI 111259 | | Helictochloa compressa (Heuff.) Romero Zarco | Romania | | | Historic | 1935 | COLLECTED | | | | | | | | 1803658 | PI 111259 |
| 30 | PI 105035 | | Helictochloa bromoides (Gouan) Romero Zarco | France | | | Historic | 1934 | COLLECTED | | | | | | | | 1493842 | PI 105035 |
| 31 | PI 89813 | No. 172 | Helictochloa bromoides (Gouan) Romero Zarco | Andalucía, Spain | | | Historic | 1930 | COLLECTED | 09/02/1930 | | | | | | | 1754101 | PI 89813 |
| 32 | PI 89814 | No. 173 | Helictochloa bromoides (Gouan) Romero Zarco | Andalucía, Spain | | | Historic | 1930 | COLLECTED | 09/02/1930 | | | | | | | 1754102 | PI 89814 |
| 33 | PI 89815 | No. 174 | Helictochloa bromoides (Gouan) Romero Zarco | Andalucía, Spain | | | Historic | 1930 | COLLECTED | 09/02/1930 | | | | | | | 1754103 | PI 89815 |
| 34 | PI 89816 | No. 177 | Helictochloa bromoides (Gouan) Romero Zarco | Andalucía, Spain | | | Historic | 1930 | COLLECTED | 09/02/1930 | | | | | | | 1754104 | PI 89816 |
| 35 | PI 59374 | | Helictochloa planiculmis (Schrad.) Romero Zarco | La Habana, Cuba | | | Historic | 1924 | COLLECTED | | | | | | | | 1499971 | PI 59374 |
| 36 | PI 59693 | | Helictochloa planiculmis (Schrad.) Romero Zarco | Rzeszow, Poland | | | Historic | 1924 | COLLECTED | | | | | | | | 1660998 | PI 59693 |
| 37 | PI 59694 | | Helictochloa versicolor (Vill.) Romero Zarco | Rzeszow, Poland | | | Historic | 1924 | COLLECTED | | | | | | | | 1660999 | PI 59694 |
| 38 | PI 59364 | | Helictochloa planiculmis (Schrad.) Romero Zarco | Copenhagen, Denmark | | | Historic | 1924 | COLLECTED | | | | | | | | 1660663 | PI 59364 |
| 39 | PI 42634 | | Helictochloa planiculmis (Schrad.) Romero Zarco | Oslo, Norway | | | Historic | 1916 | COLLECTED | | | | | | | | 1511057 | PI 42634 |
| 40 | PI 25352 | | Helictochloa planiculmis (Schrad.) Romero Zarco | Madrid, Comunidad de, Spain | | | Historic | 1909 | COLLECTED | | | | | | | | 1587412 | PI 25352 |
| 41 | PI 16281 | | Helictochloa planiculmis (Schrad.) Romero Zarco | Grand-Est, France | | | Historic | 1905 | COLLECTED | | | | | | | | 1573902 | PI 16281 |
| 42 | PI 14841 | | Helictochloa planiculmis (Schrad.) Romero Zarco | Stockholms län, Sweden | | | Historic | 1905 | COLLECTED | | | | | | | | 1636372 | PI 14841 |
| 43 | W6 802 grin | | Helictochloa hookeri (Scribn.) Romero Zarco subsp. hookeri | | | | Historic | 2014 | | | | | | | | An accession only used for order items that do not have accessions linked to them. | 1915856 | W6 802 grin |
| 44 | W6 805 grin | | Helictochloa hookeri (Scribn.) Romero Zarco subsp. schelliana (Hack.) Romero Zarco | | | | Historic | 2014 | | | | | | | | An accession only used for order items that do not have accessions linked to them. | 1916508 | W6 805 grin |
| 45 | W6 41742 | R10-42-176 | Helictochloa versicolor (Vill.) Romero Zarco subsp. caucasica (Holub) Romero Zarco | Karačaevo-Čerkesskaja Respublika, Russian Federation | W6 | | Not Available | 2011 | COLLECTED | 07/31/2010 | Musatcheri Mountain in the Grand Caucasuses, chairlifts near Dombai | 43.29400000, 41.65400000 | 2436 | Alpine meadow. Shale outcrop, stony, little organic matter: seed collected from >100 plants | Wild material | | 1883399 | W6 41742 |
| 46 | W6 41822 | R10-60-257 | Helictochloa versicolor (Vill.) Romero Zarco subsp. caucasica (Holub) Romero Zarco | Adygeja, Russian Federation | W6 | | Not Available | 2011 | COLLECTED | 08/06/2010 | Lago-Naki Nature Reserve | 44.05700000, 40.02300000 | 1817 | Sub-alpine meadow. Limestone parent material, slopes ranging from 0-20% with W to NNE exposure: seed collected from >100 plants | Wild material | | 1883405 | W6 41822 |
| 47 | W6 28073 | CZEPOA-06:005 | Helictochloa pratensis (L.) Romero Zarco | Czech Republic | | | Historic | 2006 | COLLECTED | 06/21/2006 | Milovice | 48.50583333, 16.41305556 | 198 | Grassland | Wild material | | 1707041 | W6 28073 |
| 48 | W6 19722 | 96N-231 | Helictochloa hookeri (Scribn.) Romero Zarco subsp. schelliana (Hack.) Romero Zarco | Mongolia | | | Historic | 1997 | COLLECTED | 08/1996 | Site 14 km west of Songino. | 48.90694444, 95.68222222 | 1971 | 15% slope. Site is an east aspect mountain side. Ground is grass covered with no tree or shrubs. Soils are tan and appear to have significant gravel. Winter grazing areas. | Wild material | DOMINANT VEG: Poa attenuata, Festuca lenensis, Thermompsis dahurica, Artemisia commutata, Artemisia frigida ECOLOGICAL ZONE: Mountain steppe | 1542925 | W6 19722 |
| 49 | W6 19736 | 96N-246 | Helictochloa hookeri (Scribn.) Romero Zarco subsp. schelliana (Hack.) Romero Zarco | Mongolia | | | Historic | 1997 | COLLECTED | 08/1996 | | 49.30361111, 94.51166667 | 2125 | 5% slope. East aspect hillside just below the Larix timber. Road is below the site. Soils are almost white in color and appear to be fine texture. Normally a wet meadow area, but dry this year. | Wild material | DOMINANT VEG: Agrostis trinii, Carex pediformis, Poa pratensis, Koelaria glauca ECOLOGICAL ZONE: Forest steppe | 1542936 | W6 19736 |
| 50 | W6 19239 | 4218 | Helictochloa planiculmis (Schrad.) Romero Zarco | Bayburt, Turkey | | | Historic | 1997 | COLLECTED | 08/01/1993 | 26 km northwest of Bayburt on Highway E97/050 to Trabzon, 1 km west of Aksar. | 40.41666667, 40.03333333 | 1677 | Steppe and Juniperus sabiana covered hills south of the Pontic Mountains north facing, limestone, loamy, 30% slopes, with Astragalus microcephalus, Rosa, Cotoneaster and many grasses; Sesleria, Poa, Avenula, Phleum, Festuca, Stipa. | Wild material | | 1539524 | W6 19239 |