| 0 | PI 666029 | 'Paragon 7/27' | Rheum ×rhabarbarum L. | Washington, United States | W6 | | | 2009 | DONATED | NEAR 06/16/2009 | | | | | Cultivated material | | 1834986 | PI 666029 |
| 1 | PI 666035 | 'Ruby 200/29' | Rheum ×rhabarbarum L. | Washington, United States | | | Historic | 2009 | DONATED | NEAR 06/16/2009 | | | | | Cultivated material | Lost plants in Pullman and Central Ferry | 1834987 | PI 666035 |
| 2 | PI 665997 | 'Victoria 574/27' | Rheum ×rhabarbarum L. | United Kingdom | W6 |  | | 2001 | DEVELOPED | NEAR 1903 | | | | | Cultivar | | 1677546 | PI 665997 |
| 3 | PI 665998 | 'Plum Hutt' | Rheum ×rhabarbarum L. | Ontario, Canada | W6 |  | | 2001 | DEVELOPED | PRE 1980 | | | | | Cultivar | | 1677507 | PI 665998 |
| 4 | PI 665999 | 'Crimson Cherry' | Rheum ×rhabarbarum L. | Massachusetts, United States | W6 |  | | 2001 | DEVELOPED | PRE 1992 | | | | | Cultivar | | 1653651 | PI 665999 |
| 5 | PI 666000 | 'Sutton' | Rheum ×rhabarbarum L. | Michigan, United States | W6 |  | | 2001 | DONATED | NEAR 06/1976 | | | | | Cultivar | | 1653652 | PI 666000 |
| 6 | PI 666001 | 'Crimson Delicious 136/30' | Rheum ×rhabarbarum L. | Oregon, United States | W6 |  | | 2001 | DONATED | NEAR 11/1980 | | | | | Cultivar | | 1653656 | PI 666001 |
| 7 | PI 666002 | 'Rheum palmatum rubra' | Rheum palmatum L. | Minnesota, United States | W6 |  | | 2001 | DONATED | NEAR 11/01/1980 | | | | | Cultivar | | 1653657 | PI 666002 |
| 8 | PI 666003 | 'Crimson Wine 115/55' | Rheum ×rhabarbarum L. | Washington, United States | W6 |  | | 2001 | DEVELOPED | NEAR 1910 | | | | | Cultivar | | 1653665 | PI 666003 |
| 9 | PI 666004 | 'Coulter MacDonald' | Rheum ×rhabarbarum L. | Québec, Canada | W6 |  | | 2001 | DEVELOPED | PRE 1980 | | | | | Cultivar | | 1677396 | PI 666004 |
| 10 | PI 666005 | 'OR 23' | Rheum ×rhabarbarum L. | Oregon, United States | W6 |  | | 2001 | DEVELOPED | PRE 1996 | | | | | Cultivar | | 1677545 | PI 666005 |
| 11 | PI 666006 | 'Penn State #3' | Rheum ×rhabarbarum L. | Minnesota, United States | W6 |  | | 2001 | COLLECTED | NEAR 11/1980 | | | | | Cultivar | | 1677547 | PI 666006 |
| 12 | PI 666007 | 'Crimson Red' | Rheum ×rhabarbarum L. | Manitoba, Canada | W6 |  | | 2001 | DEVELOPED | NEAR 1930 | | | | | Cultivar | | 1677548 | PI 666007 |
| 13 | PI 666008 | 'Sutton' | Rheum ×rhabarbarum L. | Ontario, Canada | W6 |  | | 2001 | DEVELOPED | NEAR 04/1980 | | | | | Cultivar | | 1677550 | PI 666008 |
| 14 | PI 666009 | 'Moore's Red-Right-Thru' | Rheum ×rhabarbarum L. | Nova Scotia, Canada | W6 |  | | 2001 | DEVELOPED | PRE 1980 | | | | | Cultivar | | 1677551 | PI 666009 |
| 15 | PI 666010 | 'Oregon Giant' | Rheum ×rhabarbarum L. | New Zealand | W6 |  | | 2001 | DEVELOPED | NEAR 04/1980 | | | | | Cultivar | | 1677552 | PI 666010 |
| 16 | PI 666011 | 'Goliath' | Rheum ×rhabarbarum L. | Netherlands | W6 |  | | 2001 | DEVELOPED | NEAR 04/1980 | | | | | Cultivar | | 1677553 | PI 666011 |
| 17 | PI 666012 | 'Cawood Delight' | Rheum ×rhabarbarum L. | United Kingdom | W6 |  | | 2001 | DEVELOPED | PRE 1991 | | | | | Cultivar | | 1677556 | PI 666012 |
| 18 | PI 666013 | 'The Sutton' | Rheum ×rhabarbarum L. | Washington, United States | W6 |  | | 2001 | DONATED | NEAR 04/03/2001 | | | | | Cultivar | | 1677557 | PI 666013 |
| 19 | PI 666014 | 'Prince Albert' | Rheum ×rhabarbarum L. | Ontario, Canada | W6 |  | | 2001 | DEVELOPED | NEAR 11/1980 | | | | | Cultivar | | 1677561 | PI 666014 |
| 20 | PI 666015 | 'McDonald' | Rheum ×rhabarbarum L. | Michigan, United States | W6 |  | | 2001 | DEVELOPED | NEAR 05/1980 | | | | | Cultivar | | 1677563 | PI 666015 |
| 21 | PI 666016 | 'MacDonald' | Rheum ×rhabarbarum L. | Québec, Canada | W6 |  | | 2001 | DEVELOPED | PRE 1992 | | | | | Cultivar | | 1677564 | PI 666016 |
| 22 | PI 666017 | 'Johnson's St. Martin 426/27' | Rheum ×rhabarbarum L. | Minnesota, United States | W6 |  | | 2001 | DEVELOPED | PRE 1980 | | | | | Cultivar | | 1677566 | PI 666017 |
| 23 | PI 666018 | 'Parson's Crimson' | Rheum ×rhabarbarum L. | Missouri, United States | W6 |  | | 2001 | DEVELOPED | NEAR 1981 | | | | | Cultivar | | 1677568 | PI 666018 |
| 24 | PI 666019 | 'Minn No. 8' | Rheum ×rhabarbarum L. | Minnesota, United States | W6 |  | | 2001 | DONATED | NEAR 11/1980 | | | | | Cultivar | | 1677569 | PI 666019 |
| 25 | PI 666020 | 'Strawberry' | Rheum ×rhabarbarum L. | Michigan, United States | W6 |  | | 2001 | DONATED | NEAR 04/28/1999 | | | | | Cultivar | | 1677570 | PI 666020 |
| 26 | PI 666021 | 'Cooper' | Rheum ×rhabarbarum L. | Ireland | W6 |  | | 2001 | DONATED | NEAR 11/1980 | | | | | Cultivar | | 1677571 | PI 666021 |
| 27 | PI 666022 | 'Chipman' | Rheum ×rhabarbarum L. | Michigan, United States | W6 |  | | 2001 | DEVELOPED | NEAR 06/1976 | | | | | Cultivar | | 1677572 | PI 666022 |
| 28 | PI 666023 | 'Mammoth' | Rheum ×rhabarbarum L. | Minnesota, United States | W6 |  | | 2001 | DONATED | NEAR 03/1987 | | | | | Cultivar | | 1677575 | PI 666023 |
| 29 | PI 666024 | 'Crimson Cherry' | Rheum ×rhabarbarum L. | Oregon, United States | W6 |  | | 2001 | DEVELOPED | PRE 1992 | | | | | Cultivar | | 1677576 | PI 666024 |
| 30 | PI 666025 | 'Topps Winter' | Rheum ×rhabarbarum L. | New Zealand | | | Historic | 2001 | DEVELOPED | NEAR 04/1980 | | | | | Cultivar | Lost plants in Pullman and Central Ferry | 1677581 | PI 666025 |
| 31 | PI 666026 | 'Loher Blut' | Rheum ×rhabarbarum L. | Michigan, United States | W6 |  | | 2001 | DONATED | NEAR 04/28/1999 | | | | | Cultivar | | 1677586 | PI 666026 |
| 32 | PI 666027 | 'Kerwin' | Rheum ×rhabarbarum L. | Colorado, United States | W6 |  | | 2001 | DEVELOPED | PRE 1992 | | | | | Cultivar | | 1677587 | PI 666027 |
| 33 | PI 666028 | 'Cyclope' | Rheum ×rhabarbarum L. | United States | | | Historic | 2001 | DEVELOPED | PRE 1980 | | | | | Cultivar | Lost plants in Pullman and Central Ferry | 1677582 | PI 666028 |
| 34 | PI 666030 | 'McDonald' | Rheum ×rhabarbarum L. | Ontario, Canada | W6 | | | 2001 | DEVELOPED | PRE 1977 | | | | | Cultivar | | 1677583 | PI 666030 |
| 35 | PI 666031 | 'Detering' | Rheum ×rhabarbarum L. | Germany | W6 | | | 2001 | DEVELOPED | PRE 1980 | | | | | Cultivar | | 1677580 | PI 666031 |
| 36 | PI 666032 | 'Ruby Red' | Rheum ×rhabarbarum L. | Ontario, Canada | | | Historic | 2001 | DEVELOPED | NEAR 1980 | | | | | Cultivar | Lost plants in Pullman and Central Ferry | 1677578 | PI 666032 |
| 37 | PI 666033 | 'Goliath' | Rheum ×rhabarbarum L. | Netherlands | | | Historic | 2001 | DEVELOPED | NEAR 06/1979 | | | | | Cultivar | Lost plants in Pullman and Central Ferry | 1677584 | PI 666033 |
| 38 | PI 666034 | 'Gurney's Seedless' | Rheum ×rhabarbarum L. | South Dakota, United States | W6 | | | 2001 | DEVELOPED | NEAR 11/1980 | | | | | Cultivar | | 1677589 | PI 666034 |
| 39 | PI 666036 | 'Prince Albert' | Rheum ×rhabarbarum L. | Netherlands | W6 | | | 2001 | DEVELOPED | NEAR 04/1982 | | | | | Cultivar | | 1677585 | PI 666036 |
| 40 | PI 666037 | 'Strawberry' | Rheum ×rhabarbarum L. | Michigan, United States | W6 | | | 2001 | DONATED | NEAR 04/1990 | | | | | Cultivar | | 1677590 | PI 666037 |
| 41 | PI 666038 | 'Tilden' | Rheum ×rhabarbarum L. | Massachusetts, United States | W6 | | | 2001 | DEVELOPED | PRE 1991 | | | | | Cultivar | | 1677588 | PI 666038 |
| 42 | PI 307655 | | Rheum tanguticum (Maxim. ex Regel) Maxim. ex Balf. | Austria | | | Historic | 1965 | COLLECTED | | | | | | | | 1703883 | PI 307655 |
| 43 | PI 298045 | | Rheum australe D. Don | Austria | | | Historic | 1964 | COLLECTED | | | | | | | | 1682717 | PI 298045 |
| 44 | PI 248739 | 'GOLIATH' | Rheum ×rhabarbarum L. | Netherlands | | | Historic | 1958 | DONATED | 06/20/1958 | | | | | Cultivar | | 1191203 | PI 248739 |
| 45 | PI 248740 | 'QUEEN VICTORIA' | Rheum ×rhabarbarum L. | Netherlands | | | Historic | 1958 | DONATED | 06/20/1958 | | | | | Cultivar | | 1191204 | PI 248740 |
| 46 | PI 234630 | 'VICTORIA' | Rheum ×rhabarbarum L. | South Africa | W6 | | Not Available | 1956 | COLLECTED | | | | | | Cultivar | | 1185068 | PI 234630 |
| 47 | PI 223463 | SARU 390 | Rheum undulatum L. | Afghanistan | | | Historic | 1955 | COLLECTED | | Above the Helmand River, Hazarjat, Kabul | | 2700 | | | | 1180366 | PI 223463 |
| 48 | PI 182986 | SARU 389 | Rheum undulatum L. | India | W6 | | Not Available | 1949 | COLLECTED | | Thangi, Rampur-Busbabr | | | | Cultivar | | 1158388 | PI 182986 |
| 49 | PI 150254 | | Rheum officinale Baill. | Maryland, United States | | | Historic | 1945 | COLLECTED | | | | | | | | 1886819 | PI 150254 |
| 50 | PI 149492 | | Rheum ribes L. | Iran | | | Historic | 1944 | COLLECTED | | | | | | | | 1884061 | PI 149492 |
| 51 | PI 148603 | 'Victoria' | Rheum rhaponticum L. | Pennsylvania, United States | | | Historic | 1944 | COLLECTED | | | | | | | | 1882206 | PI 148603 |
| 52 | PI 141967 | | Rheum undulatum L. | Heilongjiang Sheng, China | | | Historic | 1941 | COLLECTED | | | | | | | | 1866717 | PI 141967 |
| 53 | PI 139446 | 'Giant Seedless' | Rheum rhaponticum L. | New Zealand | | | Historic | 1940 | COLLECTED | | | | | | | | 1862992 | PI 139446 |
| 54 | PI 139447 | 'Topp's Winter' | Rheum rhaponticum L. | New Zealand | | | Historic | 1940 | COLLECTED | | | | | | | | 1862993 | PI 139447 |
| 55 | PI 139193 | 'Giant Crimson Wonder' | Rheum rhaponticum L. | New Zealand | | | Historic | 1940 | COLLECTED | | | | | | | | 1862356 | PI 139193 |
| 56 | PI 139153 | 'Giant Non-seedling' | Rheum rhaponticum L. | New Zealand | | | Historic | 1940 | COLLECTED | | | | | | | | 1862320 | PI 139153 |
| 57 | PI 139154 | 'Topp-s Crimson Winter' | Rheum rhaponticum L. | New Zealand | | | Historic | 1940 | COLLECTED | | | | | | | | 1862321 | PI 139154 |
| 58 | PI 139163 | 'Horton's Champion' | Rheum rhaponticum L. | New Zealand | | | Historic | 1940 | COLLECTED | | | | | | | | 1862330 | PI 139163 |
| 59 | PI 139172 | 'Weightman's Invincible' | Rheum rhaponticum L. | New Zealand | | | Historic | 1940 | COLLECTED | | | | | | | | 1862338 | PI 139172 |
| 60 | PI 138499 | Rupas | Rheum sp. | Kermān, Iran | | | Historic | 1940 | COLLECTED | 01/03/1940 | Kirman | | | | | | 1860873 | PI 138499 |
| 61 | PI 137001 | | Rheum maximowiczii Losinsk. | Unknown | | | Historic | 1940 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1856340 | PI 137001 |
| 62 | PI 137002 | | Rheum turkestanicum Janisch. | Unknown | | | Historic | 1940 | COLLECTED | | union of Soviet Socialist Republics | | | | | | 1856341 | PI 137002 |
| 63 | PI 135848 | No. 4886 | Rheum sp. | Afghanistan | | | Historic | 1940 | COLLECTED | 10/15/1939 | Burchao Pass | | 2736 | | | | 1854009 | PI 135848 |
| 64 | PI 135033 | 'Early Red Champogne' | Rheum rhaponticum L. | England, United Kingdom | | | Historic | 1940 | COLLECTED | | | | | | | | 1852339 | PI 135033 |
| 65 | PI 134813 | Bottners Rotsteiliger | Rheum rhaponticum L. | Switzerland | | | Historic | 1940 | COLLECTED | | | | | | | | 1851987 | PI 134813 |
| 66 | PI 134814 | Elmsfeuer | Rheum rhaponticum L. | Switzerland | | | Historic | 1940 | COLLECTED | | | | | | | | 1851988 | PI 134814 |
| 67 | PI 134815 | Elmsjubilaum | Rheum rhaponticum L. | Switzerland | | | Historic | 1940 | COLLECTED | | | | | | | | 1851989 | PI 134815 |
| 68 | PI 134816 | Fruhe Monsdorfer | Rheum rhaponticum L. | Switzerland | | | Historic | 1940 | COLLECTED | | | | | | | | 1851990 | PI 134816 |
| 69 | PI 134817 | Kusnachter Reisen Verbesserter | Rheum rhaponticum L. | Switzerland | | | Historic | 1940 | COLLECTED | | | | | | | | 1851991 | PI 134817 |
| 70 | PI 134818 | Metzgers verbesserter Victoria Riesen | Rheum rhaponticum L. | Switzerland | | | Historic | 1940 | COLLECTED | | | | | | | | 1851992 | PI 134818 |
| 71 | PI 131025 | Elmsfeuer | Rheum rhaponticum L. | Germany | | | Historic | 1939 | COLLECTED | | | | | | | | 1846903 | PI 131025 |
| 72 | PI 131026 | Elmsjubilaum | Rheum rhaponticum L. | Germany | | | Historic | 1939 | COLLECTED | | | | | | | | 1846904 | PI 131026 |
| 73 | PI 131027 | Holsteiner Blut | Rheum rhaponticum L. | Germany | | | Historic | 1939 | COLLECTED | | | | | | | | 1846905 | PI 131027 |
| 74 | PI 131028 | Loher Blut | Rheum rhaponticum L. | Germany | | | Historic | 1939 | COLLECTED | | | | | | | | 1846906 | PI 131028 |
| 75 | PI 134650 | | Rheum sp. | Afghanistan | | | Historic | 1939 | COLLECTED | 07/27/1939 | Hills above Sari Chasma at 2432m to 2736m alltitude | | | | | | 1851783 | PI 134650 |
| 76 | PI 134438 | 'Champion Seedless' | Rheum rhaponticum L. | New Zealand | | | Historic | 1939 | COLLECTED | | | | | | | | 1851058 | PI 134438 |
| 77 | PI 133952 | 'Stone's Ruby' | Rheum rhaponticum L. | Australia | | | Historic | 1939 | COLLECTED | | | | | | | | 1850443 | PI 133952 |
| 78 | PI 133953 | 'Topp's Winter' | Rheum rhaponticum L. | Australia | | | Historic | 1939 | COLLECTED | | | | | | | | 1850444 | PI 133953 |
| 79 | PI 133954 | 'Wilson's Ruby' | Rheum rhaponticum L. | Australia | | | Historic | 1939 | COLLECTED | | | | | | | | 1850445 | PI 133954 |
| 80 | PI 133737 | 'Mould's Crimson' | Rheum rhaponticum L. | Australia | | | Historic | 1939 | COLLECTED | | | | | | | | 1850184 | PI 133737 |
| 81 | PI 132351 | | Rheum rhaponticum L. | New South Wales, Australia | | | Historic | 1939 | COLLECTED | | | | | | | | 1848463 | PI 132351 |
| 82 | PI 132231 | Schwabisches Vollblut | Rheum rhaponticum L. | Germany | | | Historic | 1939 | COLLECTED | | | | | | | | 1848327 | PI 132231 |
| 83 | PI 132156 | Holsteiner Blut | Rheum rhaponticum L. | Germany | | | Historic | 1939 | COLLECTED | | | | | | | | 1848235 | PI 132156 |
| 84 | PI 132021 | 'Insignis' | Rheum rhaponticum L. | Germany | | | Historic | 1939 | COLLECTED | | | | | | | | 1848081 | PI 132021 |
| 85 | PI 132004 | Mondorfer Rotstieliger | Rheum rhaponticum L. | Germany | | | Historic | 1939 | COLLECTED | | | | | | | | 1848065 | PI 132004 |
| 86 | PI 131892 | 'Early Albert' | Rheum rhaponticum L. | Scotland, United Kingdom | | | Historic | 1939 | COLLECTED | | | | | | | | 1847954 | PI 131892 |
| 87 | PI 131893 | 'Greenage' | Rheum rhaponticum L. | Scotland, United Kingdom | | | Historic | 1939 | COLLECTED | | | | | | | | 1847955 | PI 131893 |
| 88 | PI 131894 | 'Scott's Monarch' | Rheum rhaponticum L. | Scotland, United Kingdom | | | Historic | 1939 | COLLECTED | | | | | | | | 1847956 | PI 131894 |
| 89 | PI 131922 | | Rheum collinianum Baill. | Scotland, United Kingdom | | | Historic | 1939 | COLLECTED | | | | | | | | 1847980 | PI 131922 |
| 90 | PI 131923 | | Rheum palmatum L. | Scotland, United Kingdom | | | Historic | 1939 | COLLECTED | | | | | | | | 1847981 | PI 131923 |
| 91 | PI 131924 | | Rheum rhaponticum L. | Scotland, United Kingdom | | | Historic | 1939 | COLLECTED | | | | | | | | 1847982 | PI 131924 |
| 92 | PI 131427 | Schwabisches Vollblut | Rheum rhaponticum L. | Germany | | | Historic | 1939 | COLLECTED | | | | | | | | 1847374 | PI 131427 |
| 93 | PI 131097 | 'Appleton's Red' | Rheum rhaponticum L. | England, United Kingdom | | | Historic | 1938 | COLLECTED | | | | | | | | 1847102 | PI 131097 |
| 94 | PI 131062 | | Rheum undulatum L. | Heilongjiang Sheng, China | | | Historic | 1938 | COLLECTED | | | | | | | | 1847070 | PI 131062 |
| 95 | PI 130264 | No. 12849 | Rheum sp. | Yunnan Sheng, China | | | Historic | 1938 | COLLECTED | | Mowuh, Taucheng | | 3600 | | | | 1846191 | PI 130264 |
| 96 | PI 130265 | No. 13542 | Rheum sp. | Yunnan Sheng, China | | | Historic | 1938 | COLLECTED | | Haba, Chungtien | | 3400 | | | | 1846192 | PI 130265 |
| 97 | PI 130266 | No. 13546 | Rheum sp. | Yunnan Sheng, China | | | Historic | 1938 | COLLECTED | | Haba, Chungtien | | 3500 | | | | 1846193 | PI 130266 |
| 98 | PI 130267 | No. 13998 | Rheum sp. | Yunnan Sheng, China | | | Historic | 1938 | COLLECTED | | Kungsinshuh, Chungtien | | 3450 | | | | 1846194 | PI 130267 |
| 99 | PI 130269 | No. 14586 | Rheum sp. | Yunnan Sheng, China | | | Historic | 1938 | COLLECTED | | Jinchang, Muli | | 3300 | | | | 1846197 | PI 130269 |
| 100 | PI 130270 | No. 14656 | Rheum sp. | Yunnan Sheng, China | | | Historic | 1938 | COLLECTED | | Jinchang, Muli | | 4100 | | | | 1846198 | PI 130270 |
| 101 | PI 130268 | No. 14364 | Rheum sp. | Yunnan Sheng, China | | | Historic | 1938 | COLLECTED | | Kulu, Muli | | 3300 | | | | 1846196 | PI 130268 |
| 102 | PI 126984 | 'Hawke's Chanpagne' | Rheum rhaponticum L. | England, United Kingdom | | | Historic | 1938 | COLLECTED | | | | | | | | 1843194 | PI 126984 |
| 103 | PI 125845 | No. 3264 | Rheum sp. | Afghanistan | | | Historic | 1937 | COLLECTED | 08/09/1937 | Kargasi Pass | | 3010 | | | | 1841284 | PI 125845 |
| 104 | PI 125846 | No. 3157 | Rheum sp. | Badakhshān, Afghanistan | | | Historic | 1937 | COLLECTED | | Chakaran | | 2709 | | | | 1841286 | PI 125846 |
| 105 | PI 121986 | No. 1731 | Rheum australe D. Don | Jammu and Kashmir, India | | | Historic | 1937 | COLLECTED | | | | | | | | 1832924 | PI 121986 |
| 106 | PI 121987 | No. 1363 | Rheum sp. | Gilgit-Baltistan, Pakistan | | | Historic | 1937 | COLLECTED | 09/05/1936 | Brokdang Nulla, Baltistan | | | | | | 1832925 | PI 121987 |
| 107 | PI 121988 | Artzo | Rheum sp. | Jammu and Kashmir, India | | | Historic | 1937 | COLLECTED | 09/26/1936 | Below Taklung Pass, Ladak | | 4515 | | | | 1832926 | PI 121988 |
| 108 | PI 121989 | No. 1518 | Rheum webbianum Royle | Himachal Pradesh, India | | | Historic | 1937 | COLLECTED | 08/15/1936 | Kolung, Lahul | | 3311 | | | | 1832927 | PI 121989 |
| 109 | PI 121626 | No. 2012 | Rheum acuminatum Hook. f. & Thomson | West Bengal, India | | | Historic | 1937 | COLLECTED | 12/25/1936 | Darjeeling | | | | | | 1831898 | PI 121626 |
| 110 | PI 121627 | No. 2011 | Rheum nobile Hook. f. & Thomson | West Bengal, India | | | Historic | 1937 | COLLECTED | 12/25/1936 | Darjeeling | | | | | | 1831899 | PI 121627 |
| 111 | PI 118344 | Rhuibarbo roxo melhorado | Rheum rhaponticum L. | São Paulo, Brazil | | | Historic | 1936 | COLLECTED | 08/28/1936 | Seed stores in Sao Paulo | | | | | | 1827742 | PI 118344 |
| 112 | PI 116199 | | Rheum ribes L. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1823659 | PI 116199 |
| 113 | PI 116200 | | Rheum tataricum L. f. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1823660 | PI 116200 |
| 114 | PI 116201 | | Rheum wittrockii C. E. Lundstr. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1823661 | PI 116201 |
| 115 | PI 116202 | | Rheum sp. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1823662 | PI 116202 |
| 116 | PI 115985 | | Rheum nobile Hook. f. & Thomson | India | | | Historic | 1936 | COLLECTED | | | | | | | | 1823438 | PI 115985 |
| 117 | PI 115425 | | Rheum tetragonopus Mart. | Belgium | | | Historic | 1936 | COLLECTED | | | | | | | | 1815371 | PI 115425 |
| 118 | PI 115426 | | Rheum undulatum L. | Belgium | | | Historic | 1936 | COLLECTED | | | | | | | | 1815372 | PI 115426 |
| 119 | PI 115270 | No. 700 | Rheum sp. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1815170 | PI 115270 |
| 120 | PI 115271 | No. 943 | Rheum compactum L. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1815171 | PI 115271 |
| 121 | PI 115272 | No. 944 | Rheum australe D. Don | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1815172 | PI 115272 |
| 122 | PI 115273 | No. 945 | Rheum undulatum L. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1815173 | PI 115273 |
| 123 | PI 115274 | No. 976 | Rheum palmatum L. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1815174 | PI 115274 |
| 124 | PI 115275 | No. 947 | Rheum rhaponticum L. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1815175 | PI 115275 |
| 125 | PI 115276 | No. 948 | Rheum ribes L. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1815176 | PI 115276 |
| 126 | PI 115277 | No. 696 | Rheum webbianum Royle | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | Native to the Himalayas, at 3010m to 4214m altitude | | | 1815177 | PI 115277 |
| 127 | PI 115278 | 'Victoria' | Rheum sp. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1815178 | PI 115278 |
| 128 | PI 115279 | No. 695 | Rheum sp. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1815179 | PI 115279 |
| 129 | PI 114652 | | Rheum acuminatum Hook. f. & Thomson | Scotland, United Kingdom | | | Historic | 1936 | COLLECTED | | | | | | | | 1813105 | PI 114652 |
| 130 | PI 114653 | | Rheum officinale Baill. | Scotland, United Kingdom | | | Historic | 1936 | COLLECTED | | | | | | | | 1813106 | PI 114653 |
| 131 | PI 114654 | | Rheum palmatum L. | Scotland, United Kingdom | | | Historic | 1936 | COLLECTED | | | | | | | | 1813107 | PI 114654 |
| 132 | PI 114655 | | Rheum rhaponticum L. | Scotland, United Kingdom | | | Historic | 1936 | COLLECTED | | | | | | | | 1813108 | PI 114655 |
| 133 | PI 114593 | | Rheum collinianum Baill. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1813050 | PI 114593 |
| 134 | PI 114594 | | Rheum australe D. Don | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1813051 | PI 114594 |
| 135 | PI 114595 | | Rheum undulatum L. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1813052 | PI 114595 |
| 136 | PI 114596 | | Rheum officinale Baill. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1813053 | PI 114596 |
| 137 | PI 114597 | | Rheum palmatum L. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1813054 | PI 114597 |
| 138 | PI 114598 | | Rheum tanguticum (Maxim. ex Regel) Maxim. ex Balf. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1813055 | PI 114598 |
| 139 | PI 114599 | | Rheum rhaponticum L. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1813056 | PI 114599 |
| 140 | PI 114600 | | Rheum tataricum L. f. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1813057 | PI 114600 |
| 141 | PI 114601 | | Rheum undulatum L. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1813058 | PI 114601 |
| 142 | PI 114602 | | Rheum wittrockii C. E. Lundstr. | Unknown | | | Historic | 1936 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1813059 | PI 114602 |
| 143 | PI 114628 | | Rheum rhaponticum L. | Czech Republic | | | Historic | 1936 | COLLECTED | | | | | | | | 1813084 | PI 114628 |
| 144 | PI 114629 | | Rheum undulatum L. | Czech Republic | | | Historic | 1936 | COLLECTED | | | | | | | | 1813085 | PI 114629 |
| 145 | PI 115529 | | Rheum palmatum L. | Netherlands | | | Historic | 1936 | COLLECTED | | | | | | | | 1822227 | PI 115529 |
| 146 | PI 115530 | | Rheum palmatum L. | Netherlands | | | Historic | 1936 | COLLECTED | | | | | | | | 1822228 | PI 115530 |
| 147 | PI 114467 | | Rheum undulatum L. | Sweden | | | Historic | 1936 | COLLECTED | | | | | | | | 1812928 | PI 114467 |
| 148 | PI 114468 | | Rheum tanguticum (Maxim. ex Regel) Maxim. ex Balf. | Sweden | | | Historic | 1936 | COLLECTED | | | | | | | | 1812929 | PI 114468 |
| 149 | PI 114469 | | Rheum pumilum Maxim. | Sweden | | | Historic | 1936 | COLLECTED | | | | | | | | 1812930 | PI 114469 |
| 150 | PI 114470 | | Rheum rhaponticum L. | Sweden | | | Historic | 1936 | COLLECTED | | | | | | | | 1812931 | PI 114470 |
| 151 | PI 114471 | | Rheum wittrockii C. E. Lundstr. | Sweden | | | Historic | 1936 | COLLECTED | | | | | | | | 1812932 | PI 114471 |
| 152 | PI 114170 | | Rheum australe D. Don | Netherlands | | | Historic | 1936 | COLLECTED | | | | | | | | 1811596 | PI 114170 |
| 153 | PI 114171 | | Rheum undulatum L. | Netherlands | | | Historic | 1936 | COLLECTED | | | | | | | | 1811597 | PI 114171 |
| 154 | PI 114172 | | Rheum sp. | Netherlands | | | Historic | 1936 | COLLECTED | | | | | | | | 1811598 | PI 114172 |
| 155 | PI 114173 | | Rheum moorcroftianum Royle | Netherlands | | | Historic | 1936 | COLLECTED | | | | | | | | 1811599 | PI 114173 |
| 156 | PI 114174 | | Rheum officinale Baill. | Netherlands | | | Historic | 1936 | COLLECTED | | | | | | | | 1811600 | PI 114174 |
| 157 | PI 114175 | | Rheum rhaponticum L. | Netherlands | | | Historic | 1936 | COLLECTED | | | | | | | | 1811601 | PI 114175 |
| 158 | PI 114176 | | Rheum ribes L. | Netherlands | | | Historic | 1936 | COLLECTED | | | | | | | | 1811602 | PI 114176 |
| 159 | PI 112050 | No. 1667 | Rheum turkestanicum Janisch. | Unknown | | | Historic | 1935 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1808096 | PI 112050 |
| 160 | PI 111145 | No. 1 | Rheum sp. | India | | | Historic | 1935 | COLLECTED | | | | | | | | 1803096 | PI 111145 |
| 161 | PI 111146 | No. 20 | Rheum sp. | India | | | Historic | 1935 | COLLECTED | | | | | | | | 1803097 | PI 111146 |
| 162 | PI 110986 | | Rheum tataricum L. f. | Unknown | | | Historic | 1935 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1802567 | PI 110986 |
| 163 | PI 110987 | | Rheum tataricum L. f. | Unknown | | | Historic | 1935 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1802568 | PI 110987 |
| 164 | PI 110988 | | Rheum wittrockii C. E. Lundstr. | Unknown | | | Historic | 1935 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1802569 | PI 110988 |
| 165 | PI 110989 | | Rheum sp. | Unknown | | | Historic | 1935 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1802570 | PI 110989 |
| 166 | PI 110758 | | Rheum palmatum L. | Lithuania | | | Historic | 1935 | COLLECTED | | | | | | | | 1802371 | PI 110758 |
| 167 | PI 110759 | | Rheum tanguticum (Maxim. ex Regel) Maxim. ex Balf. | Lithuania | | | Historic | 1935 | COLLECTED | | | | | | | | 1802372 | PI 110759 |
| 168 | PI 110760 | | Rheum rhaponticum L. | Lithuania | | | Historic | 1935 | COLLECTED | | | | | | | | 1802373 | PI 110760 |
| 169 | PI 110761 | | Rheum undulatum L. | Lithuania | | | Historic | 1935 | COLLECTED | | | | | | | | 1802374 | PI 110761 |
| 170 | PI 110657 | | Rheum alexandrae Batalin | Sweden | | | Historic | 1935 | COLLECTED | | | | | | | | 1802099 | PI 110657 |
| 171 | PI 110582 | | Rheum australe D. Don | France | | | Historic | 1935 | COLLECTED | | | | | | | | 1802033 | PI 110582 |
| 172 | PI 110583 | | Rheum officinale Baill. | France | | | Historic | 1935 | COLLECTED | | | | | | | | 1802034 | PI 110583 |
| 173 | PI 110584 | | Rheum rhaponticum L. | France | | | Historic | 1935 | COLLECTED | | | | | | | | 1802035 | PI 110584 |
| 174 | PI 110625 | | Rheum undulatum L. | Sweden | | | Historic | 1935 | COLLECTED | | | | | | | | 1802067 | PI 110625 |
| 175 | PI 110626 | | Rheum sp. | Sweden | | | Historic | 1935 | COLLECTED | | | | | | | | 1802068 | PI 110626 |
| 176 | PI 110627 | | Rheum officinale Baill. | Sweden | | | Historic | 1935 | COLLECTED | | | | | | | | 1802069 | PI 110627 |
| 177 | PI 110628 | | Rheum undulatum L. | Sweden | | | Historic | 1935 | COLLECTED | | | | | | | | 1802070 | PI 110628 |
| 178 | PI 110629 | | Rheum webbianum Royle | Sweden | | | Historic | 1935 | COLLECTED | | | | | Native to the Himalayas at altitudes of 3010m t0 4214m | | | 1802071 | PI 110629 |
| 179 | PI 110147 | | Rheum tataricum L. f. | Unknown | | | Historic | 1935 | COLLECTED | | Union of Soviet Socialist Republics | | | | | | 1801548 | PI 110147 |
| 180 | PI 108951 | No. 39 | Rheum sp. | Ahal, Turkmenistan | | | Historic | 1934 | COLLECTED | 06/21/1934 | Kopet Dagh south of Ashkhabad | | | | | | 1799930 | PI 108951 |
| 181 | PI 108952 | No. 48 | Rheum turkestanicum Janisch. | Turkmenistan | | | Historic | 1934 | COLLECTED | 06/23/1934 | Repetek | | | | | | 1799931 | PI 108952 |
| 182 | PI 108953 | No. 49 | Rheum turkestanicum Janisch. | Turkmenistan | | | Historic | 1934 | COLLECTED | | Repetek | | | | | | 1799932 | PI 108953 |
| 183 | PI 107404 | No. 357 | Rheum sp. | Tashkent, Uzbekistan | | | Historic | 1934 | COLLECTED | 07/15/1934 | Little Chimgan, east of Tashkent | | | | | | 1796778 | PI 107404 |
| 184 | PI 107405 | No. 395 | Rheum sp. | Tashkent, Uzbekistan | | | Historic | 1934 | COLLECTED | 07/15/1934 | Chimgan, east of Tashkent | | | | | | 1796779 | PI 107405 |
| 185 | PI 106528 | No. 31 | Rheum rhaponticum L. | Bulgaria | | | Historic | 1934 | COLLECTED | 08/13/1934 | Henyi, Vrch-Rila | | 1806 | | | | 1795722 | PI 106528 |
| 186 | PI 105159 | | Rheum alexandrae Batalin | Sweden | | | Historic | 1934 | COLLECTED | | | | | | | | 1793721 | PI 105159 |
| 187 | PI 105160 | | Rheum undulatum L. | Sweden | | | Historic | 1934 | COLLECTED | | | | | | | | 1793722 | PI 105160 |
| 188 | PI 105161 | | Rheum palmatum L. | Sweden | | | Historic | 1934 | COLLECTED | | | | | | | | 1793723 | PI 105161 |
| 189 | PI 104859 | | Rheum rhaponticum L. | England, United Kingdom | | | Historic | 1934 | COLLECTED | | | | | | | | 1793375 | PI 104859 |
| 190 | PI 104648 | | Rheum undulatum L. | Lithuania | | | Historic | 1934 | COLLECTED | | | | | | | | 1793192 | PI 104648 |
| 191 | PI 104375 | | Rheum officinale Baill. | Scotland, United Kingdom | | | Historic | 1934 | COLLECTED | | | | | | | | 1792924 | PI 104375 |
| 192 | PI 104376 | | Rheum palmatum L. | Scotland, United Kingdom | | | Historic | 1934 | COLLECTED | | | | | | | | 1792925 | PI 104376 |
| 193 | PI 104377 | | Rheum rhaponticum L. | Scotland, United Kingdom | | | Historic | 1934 | COLLECTED | | | | | | | | 1792926 | PI 104377 |
| 194 | PI 98382 | | Rheum alexandrae Batalin | Zhejiang Sheng, China | | | Historic | 1932 | COLLECTED | | | | | | | | 1785711 | PI 98382 |
| 195 | PI 98217 | No. 134836 | Rheum turkestanicum Janisch. | Unknown | | | Historic | 1932 | COLLECTED | | | | | | | | 1784908 | PI 98217 |
| 196 | PI 93935 | No. 28509 | Rheum delavayi Franch. | China | | | Historic | 1931 | COLLECTED | | | | | | | | 1781027 | PI 93935 |
| 197 | PI 92987 | | Rheum turkestanicum Janisch. | Turkmenistan | | | Historic | 1931 | COLLECTED | | | | | | | | 1779731 | PI 92987 |
| 198 | PI 84049 | No. 18200 | Rheum alexandrae Batalin | China | | | Historic | 1930 | COLLECTED | 09/1929 | Kulu Mountains | | 4365 | | | | 1747568 | PI 84049 |
| 199 | PI 76929 | 'Ruba' | Rheum ×rhabarbarum L. | Ontario, Canada | | | Historic | 1928 | COLLECTED | | | | | | | | 1495800 | PI 76929 |
| 200 | PI 72499 | No. 7101 | Rheum sp. | Myanmar | | | Historic | 1927 | COLLECTED | | | | | | | | 1727363 | PI 72499 |
| 201 | PI 69105 | No. 919 | Rheum undulatum L. | Stockholms län, Sweden | | | Historic | 1926 | COLLECTED | | | | | | | | 1722660 | PI 69105 |
| 202 | PI 69106 | No. 921 | Rheum sp. | Stockholms län, Sweden | | | Historic | 1926 | COLLECTED | | | | | | | | 1722661 | PI 69106 |
| 203 | PI 69107 | No. 917 | Rheum wittrockii C. E. Lundstr. | Stockholms län, Sweden | | | Historic | 1926 | COLLECTED | | | | | | | | 1722662 | PI 69107 |
| 204 | PI 68412 | No. 6328 | Rheum sp. | Unknown | | | Historic | 1926 | COLLECTED | 07/23/1926 | White River Valley near Bariam | | | | | | 1721126 | PI 68412 |
| 205 | PI 64267 | No. 5805 | Rheum sp. | Xizang Zizhiqu, China | | | Historic | 1925 | COLLECTED | | | | | | | | 1665584 | PI 64267 |
| 206 | PI 60223 | No. 7 | Rheum officinale Baill. | Gansu Sheng, China | | | Historic | 1924 | COLLECTED | | | | | | | | 1661666 | PI 60223 |
| 207 | PI 55789 | | Rheum ×rhabarbarum L. | Ontario, Canada | | | Historic | 1922 | COLLECTED | | | | | | | | 1502328 | PI 55789 |
| 208 | PI 49410 | | Rheum sp. | Sichuan Sheng, China | | | Historic | 1920 | COLLECTED | | | | | | | | 1505485 | PI 49410 |
| 209 | PI 48020 | | Rheum sp. | KwaZulu-Natal, South Africa | | | Historic | 1919 | COLLECTED | | | | | | | | 1503083 | PI 48020 |
| 210 | PI 39049 | | Rheum acuminatum Hook. f. & Thomson | West Bengal, India | | | Historic | 1914 | COLLECTED | | | | | | | | 1603913 | PI 39049 |
| 211 | PI 39050 | | Rheum nobile Hook. f. & Thomson | West Bengal, India | | | Historic | 1914 | COLLECTED | | | | | | | | 1603914 | PI 39050 |
| 212 | PI 31035 | | Rheum tanguticum (Maxim. ex Regel) Maxim. ex Balf. | Leningradskaja oblast', Russian Federation | | | Historic | 1911 | COLLECTED | | | | | | | | 1596888 | PI 31035 |
| 213 | PI 31036 | | Rheum spiciforme Royle | Leningradskaja oblast', Russian Federation | | | Historic | 1911 | COLLECTED | | | | | | | | 1596889 | PI 31036 |
| 214 | PI 31037 | | Rheum australe D. Don | Leningradskaja oblast', Russian Federation | | | Historic | 1911 | COLLECTED | | | | | | | | 1596890 | PI 31037 |
| 215 | PI 31038 | 'Corallinum' | Rheum palmatum L. | Leningradskaja oblast', Russian Federation | | | Historic | 1911 | COLLECTED | | | | | | | | 1596891 | PI 31038 |
| 216 | PI 31039 | | Rheum palmatum L. | Leningradskaja oblast', Russian Federation | | | Historic | 1911 | COLLECTED | | | | | | | | 1644691 | PI 31039 |
| 217 | PI 31040 | | Rheum rhaponticum L. | Leningradskaja oblast', Russian Federation | | | Historic | 1911 | COLLECTED | | | | | | | | 1596892 | PI 31040 |
| 218 | PI 31041 | | Rheum undulatum L. | Leningradskaja oblast', Russian Federation | | | Historic | 1911 | COLLECTED | | | | | | | | 1596893 | PI 31041 |
| 219 | PI 31042 | | Rheum moorcroftianum Royle | Leningradskaja oblast', Russian Federation | | | Historic | 1911 | COLLECTED | | | | | | | | 1596894 | PI 31042 |
| 220 | PI 26501 | | Rheum nobile Hook. f. & Thomson | Sikkim, India | | | Historic | 1910 | COLLECTED | | | | | | | | 1523758 | PI 26501 |
| 221 | PI 24851 | | Rheum officinale Baill. | Sichuan Sheng, China | | | Historic | 1909 | COLLECTED | | | | | | | | 1587034 | PI 24851 |
| 222 | PI 23274 | | Rheum sp. | Chile | | | Historic | 1908 | COLLECTED | | | | | | | | 1585218 | PI 23274 |
| 223 | PI 21758 | 'Queen Victoria' | Rheum rhaponticum L. | Leningradskaja oblast', Russian Federation | | | Historic | 1908 | COLLECTED | | | | | | | | 1521331 | PI 21758 |
| 224 | PI 21759 | 'Queen Victoria' | Rheum undulatum L. | Leningradskaja oblast', Russian Federation | | | Historic | 1908 | COLLECTED | | | | | | | | 1581935 | PI 21759 |
| 225 | PI 21760 | | Rheum rhaponticum L. | Leningradskaja oblast', Russian Federation | | | Historic | 1908 | COLLECTED | | | | | | | | 1581937 | PI 21760 |
| 226 | PI 21761 | | Rheum tanguticum (Maxim. ex Regel) Maxim. ex Balf. | Leningradskaja oblast', Russian Federation | | | Historic | 1908 | COLLECTED | | | | | | | | 1581936 | PI 21761 |
| 227 | PI 21762 | | Rheum palmatum L. | Leningradskaja oblast', Russian Federation | | | Historic | 1908 | COLLECTED | | | | | | | | 1581938 | PI 21762 |
| 228 | PI 21763 | | Rheum australe D. Don | Leningradskaja oblast', Russian Federation | | | Historic | 1908 | COLLECTED | | | | | | | | 1581939 | PI 21763 |
| 229 | PI 21764 | | Rheum compactum L. | Leningradskaja oblast', Russian Federation | | | Historic | 1908 | COLLECTED | | | | | | | | 1581940 | PI 21764 |
| 230 | PI 21765 | | Rheum palmatum L. | Leningradskaja oblast', Russian Federation | | | Historic | 1908 | COLLECTED | | | | | | | | 1581941 | PI 21765 |
| 231 | PI 21766 | | Rheum moorcroftianum Royle | Leningradskaja oblast', Russian Federation | | | Historic | 1908 | COLLECTED | | | | | | | | 1581942 | PI 21766 |
| 232 | PI 21767 | | Rheum acuminatum Hook. f. & Thomson | Leningradskaja oblast', Russian Federation | | | Historic | 1908 | COLLECTED | | | | | | | | 1581943 | PI 21767 |
| 233 | PI 21319 | | Rheum officinale Baill. | Hebei Sheng, China | | | Historic | 1907 | COLLECTED | | | | | | | | 1533245 | PI 21319 |
| 234 | PI 20801 | | Rheum compactum L. | England, United Kingdom | | | Historic | 1907 | COLLECTED | | | | | | | | 1578371 | PI 20801 |
| 235 | PI 20802 | | Rheum officinale Baill. | England, United Kingdom | | | Historic | 1907 | COLLECTED | | | | | | | | 1578372 | PI 20802 |
| 236 | PI 20803 | | Rheum sp. | England, United Kingdom | | | Historic | 1907 | COLLECTED | | | | | | | | 1578373 | PI 20803 |
| 237 | PI 20804 | | Rheum tataricum L. f. | England, United Kingdom | | | Historic | 1907 | COLLECTED | | | | | | | | 1578374 | PI 20804 |
| 238 | PI 20805 | | Rheum compactum L. | England, United Kingdom | | | Historic | 1907 | COLLECTED | | | | | | | | 1532990 | PI 20805 |
| 239 | PI 20420 | No. 669a | Rheum rhaponticum L. | Habarovskij kraj, Russian Federation | | | Historic | 1907 | COLLECTED | 11/20/1906 | | | | | | | 1577480 | PI 20420 |
| 240 | PI 19581 | | Rheum tanguticum (Maxim. ex Regel) Maxim. ex Balf. | England, United Kingdom | | | Historic | 1906 | COLLECTED | | | | | | | | 1532538 | PI 19581 |
| 241 | PI 19567 | 'Hybride Florentin' | Rheum hybr. | Île-de-France, France | | | Historic | 1906 | COLLECTED | | | | | | | | 1532534 | PI 19567 |
| 242 | PI 19563 | | Rheum collinianum Baill. | England, United Kingdom | | | Historic | 1906 | COLLECTED | | | | | | | | 1532532 | PI 19563 |
| 243 | PI 19564 | | Rheum australe D. Don | England, United Kingdom | | | Historic | 1906 | COLLECTED | | | | | | | | 1576698 | PI 19564 |
| 244 | PI 19565 | | Rheum undulatum L. | England, United Kingdom | | | Historic | 1906 | COLLECTED | | | | | | | | 1576699 | PI 19565 |
| 245 | PI 13093 | | Rheum palmatum L. | Île-de-France, France | | | Historic | 1905 | COLLECTED | | | | | | | | 1528960 | PI 13093 |
| 246 | PI 13089 | | Rheum officinale Baill. | Île-de-France, France | | | Historic | 1905 | COLLECTED | | | | | | | | 1528956 | PI 13089 |
| 247 | PI 7188 | | Rheum tanguticum (Maxim. ex Regel) Maxim. ex Balf. | Thüringen, Germany | | | Historic | 1901 | COLLECTED | | | | | | | | 1545365 | PI 7188 |
| 248 | PI 7214 | | Rheum tanguticum (Maxim. ex Regel) Maxim. ex Balf. | Thüringen, Germany | | | Historic | 1901 | COLLECTED | | | | | | | | 1545402 | PI 7214 |
| 249 | W6 42986 | SARU 530 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/14/2008 | | | | | Breeding material | | 1893960 | W6 42986 |
| 250 | W6 42987 | SARU 531 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/14/2008 | | | | | Breeding material | | 1893966 | W6 42987 |
| 251 | W6 42988 | SARU 532 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/14/2008 | | | | | Breeding material | | 1893971 | W6 42988 |
| 252 | W6 42989 | SARU 533 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/14/2008 | | | | | Breeding material | | 1893994 | W6 42989 |
| 253 | W6 42964 | SARU 508 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/14/2008 | | | | | Breeding material | | 1892543 | W6 42964 |
| 254 | W6 42965 | SARU 509 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 09/09/2008 | | | | | Breeding material | | 1892544 | W6 42965 |
| 255 | W6 42966 | SARU 510 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/14/2008 | | | | | Breeding material | | 1892546 | W6 42966 |
| 256 | W6 42967 | SARU 511 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/14/2008 | | | | | Breeding material | | 1892548 | W6 42967 |
| 257 | W6 42968 | SARU 512 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/23/2007 | | | | | Breeding material | | 1892550 | W6 42968 |
| 258 | W6 42969 | SARU 513 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/14/2008 | | | | | Breeding material | | 1892552 | W6 42969 |
| 259 | W6 42970 | SARU 514 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/14/2008 | | | | | Breeding material | | 1892555 | W6 42970 |
| 260 | W6 42971 | SARU 515 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/23/2007 | | | | | Breeding material | | 1892556 | W6 42971 |
| 261 | W6 42972 | SARU 516 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/14/2008 | | | | | Breeding material | | 1892559 | W6 42972 |
| 262 | W6 42973 | SARU 517 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/14/2008 | | | | | Breeding material | | 1892561 | W6 42973 |
| 263 | W6 42974 | SARU 518 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 09/03/2008 | | | | | Breeding material | | 1892564 | W6 42974 |
| 264 | W6 42975 | SARU 519 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 09/03/2008 | | | | | Breeding material | | 1892567 | W6 42975 |
| 265 | W6 42976 | SARU 520 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 09/03/2008 | | | | | Breeding material | | 1892571 | W6 42976 |
| 266 | W6 42977 | SARU 521 | Rheum palmatum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 09/03/2008 | | | | | Breeding material | | 1892576 | W6 42977 |
| 267 | W6 42978 | SARU 522 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/14/2008 | | | | | Breeding material | | 1892727 | W6 42978 |
| 268 | W6 42979 | SARU 523 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/23/2007 | | | | | Breeding material | | 1892729 | W6 42979 |
| 269 | W6 42980 | SARU 524 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/14/2008 | | | | | Breeding material | | 1892731 | W6 42980 |
| 270 | W6 42981 | SARU 525 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/14/2008 | | | | | Breeding material | | 1892733 | W6 42981 |
| 271 | W6 42982 | SARU 526 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/14/2008 | | | | | Breeding material | | 1892734 | W6 42982 |
| 272 | W6 42983 | SARU 527 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/14/2008 | | | | | Breeding material | | 1892736 | W6 42983 |
| 273 | W6 42984 | SARU 528 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/23/2007 | | | | | Breeding material | | 1892738 | W6 42984 |
| 274 | W6 42985 | SARU 529 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/23/2007 | | | | | Breeding material | | 1892744 | W6 42985 |
| 275 | W6 42955 | SARU 499 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | DEVELOPED | NEAR 08/23/2007 | | | | | Cultivated material | | 1892522 | W6 42955 |
| 276 | W6 42956 | SARU 500 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/23/2007 | | | | | Breeding material | | 1892523 | W6 42956 |
| 277 | W6 42957 | SARU 501 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/16/2006 | | | | | Breeding material | | 1892524 | W6 42957 |
| 278 | W6 42958 | SARU 502 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | DEVELOPED | NEAR 08/23/2007 | | | | | Breeding material | | 1892525 | W6 42958 |
| 279 | W6 42959 | SARU 503 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/16/2006 | | | | | Breeding material | | 1892526 | W6 42959 |
| 280 | W6 42960 | SARU 504 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/16/2006 | | | | | Breeding material | | 1892527 | W6 42960 |
| 281 | W6 42961 | SARU 505 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/16/2006 | | | | | Breeding material | | 1892528 | W6 42961 |
| 282 | W6 42962 | SARU 506 | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/16/2006 | | | | | Breeding material | | 1892529 | W6 42962 |
| 283 | W6 42963 | SARU 507 | Rheum palmatum L. | Alaska, United States | W6 | | Not Available | 2011 | COLLECTED | NEAR 08/16/2006 | | | | | Uncertain improvement status | | 1892530 | W6 42963 |
| 284 | RB 69 | RB 69 | Rheum ×rhabarbarum L. | Connecticut, United States | | | Historic | 2010 | DONATED | 12/22/2010 | | | | | Cultivar | | 1860772 | RB 69 |
| 285 | RB 67 | Kremlin Red | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | | 2010 | DONATED | NEAR 05/18/2010 | | | | | Cultivated material | | 1834920 | RB 67 |
| 286 | RB 59 | 'The Sutton' | Rheum ×rhabarbarum L. | Washington, United States | | | Historic | 2009 | DONATED | NEAR 06/16/2009 | | | | | Cultivated material | All plants died. | 1834989 | RB 59 |
| 287 | RB 68 | 'Red Right Through' | Rheum ×rhabarbarum L. | Washington, United States | W6 | | | 2009 | DONATED | NEAR 06/16/2009 | | | | | Cultivated material | | 1834988 | RB 68 |
| 288 | RB 64 | North Pole Variety | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | | 2008 | DONATED | NEAR 06/27/2008 | | | | | Cultivated material | | 1834885 | RB 64 |
| 289 | RB 65 | 'Ben Vanderweel 1' | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | | 2008 | DONATED | NEAR 06/13/2008 | | | | | Cultivated material | | 1834894 | RB 65 |
| 290 | RB 66 | 'Ben Vanderweel 2' | Rheum ×rhabarbarum L. | Alaska, United States | W6 | | | 2008 | DONATED | NEAR 06/13/2008 | | | | | Cultivated material | | 1834909 | RB 66 |
| 291 | RB 30 | 'German Wine (morphotype 1)' | Rheum ×rhabarbarum L. | | W6 |  | | 2008 | DEVELOPED | NEAR 1910 | | | | | Cultivated material | | 1790143 | RB 30 |
| 292 | RB 49 | Rheum UK Lot 540533/3/CC/JO | Rheum sp. | United Kingdom | |  | Historic | 2008 | DONATED | PRE 2004 | | | | | Uncertain improvement status | All plants died. | 1790145 | RB 49 |
| 293 | RB 50 | Rheum palmatum 2/24 UK | Rheum palmatum L. | United Kingdom | W6 |  | | 2008 | DONATED | PRE 2004 | | | | | Uncertain improvement status | | 1790144 | RB 50 |
| 294 | RB 63 | Ayakulik | Rheum ×rhabarbarum L. | Alaska, United States | | | Historic | 2007 | DONATED | NEAR 08/20/2007 | | | | | Cultivated material | All plants died. | 1834874 | RB 63 |
| 295 | RB 43 | 'Valentine' | Rheum ×rhabarbarum L. | Ontario, Canada | |  | Historic | 2005 | DEVELOPED | NEAR 1938 | | | | | Cultivar | All plants died. | 1686864 | RB 43 |
| 296 | RB 44 | 'Sunrise' | Rheum ×rhabarbarum L. | Michigan, United States | W6 |  | | 2005 | DONATED | NEAR 11/01/2005 | | | | | Cultivar | | 1686865 | RB 44 |
| 297 | RB 45 | 'Rheum officinale' | Rheum officinale Baill. | Michigan, United States | W6 |  | | 2005 | DONATED | NEAR 11/01/2005 | | | | | Uncertain improvement status | | 1686867 | RB 45 |
| 298 | RB 46 | 'Ruby 565/27' | Rheum ×rhabarbarum L. | Michigan, United States | W6 |  | | 2005 | DONATED | NEAR 11/01/2005 | | | | | Cultivar | | 1686869 | RB 46 |
| 299 | RB 47 | 'Sutton Seedless' | Rheum ×rhabarbarum L. | Michigan, United States | W6 |  | | 2005 | DONATED | NEAR 11/01/2005 | | | | | Cultivar | | 1686871 | RB 47 |
| 300 | RB 48 | 'Rheum palmatum tanguticum' | Rheum palmatum L. | Michigan, United States | |  | Historic | 2005 | DONATED | NEAR 11/01/2005 | | | | | Uncertain improvement status | All plants died. | 1686872 | RB 48 |
| 301 | AG 1266 | SARU 387 | Rheum tataricum L. f. | | | | Historic | 2005 | | | | | | | Wild material | | 1677790 | AG 1266 |
| 302 | AG 1268 | SARU 388 | Rheum tataricum L. f. | | | | Historic | 2005 | | | | | | | Cultivar | | 1677792 | AG 1268 |
| 303 | AG 1205 | 'Victoria PI7916' | Rheum ×rhabarbarum L. | United Kingdom | |  | Historic | 2001 | DEVELOPED | NEAR 1903 | | | | | Cultivar | | 1677394 | AG 1205 |
| 304 | AG 1220 | 'Red Delicious (MN) MS38' | Rheum ×rhabarbarum L. | Illinois, United States | | | Historic | 2001 | DEVELOPED | PRE 1980 | | | | | Cultivar | | 1677555 | AG 1220 |
| 305 | AG 1241 | 'Jersey (MN) MS37' | Rheum ×rhabarbarum L. | New Jersey, United States | | | Historic | 2001 | DEVELOPED | PRE 1980 | | | | | Cultivar | | 1677577 | AG 1241 |
| 306 | AG 1243 | 'Giant Victoria (NZ) MS14' | Rheum ×rhabarbarum L. | United Kingdom | | | Historic | 2001 | DEVELOPED | PRE 1980 | | | | | Cultivar | | 1677579 | AG 1243 |
| 307 | RB 14 | 'Timperly Early' | Rheum ×rhabarbarum L. | United Kingdom | W6 |  | | 2001 | DEVELOPED | NEAR 08/1980 | | | | | Cultivar | | 1677549 | RB 14 |
| 308 | RB 19 | 'New Zealand' | Rheum ×rhabarbarum L. | New Zealand | W6 |  | | 2001 | DONATED | NEAR 04/1980 | | | | | Cultivar | | 1677554 | RB 19 |
| 309 | RB 2 | 'Ruby 201/29' | Rheum ×rhabarbarum L. | Ontario, Canada | |  | Historic | 2001 | DEVELOPED | NEAR 1895 | | | | | Cultivar | | 1677497 | RB 2 |
| 310 | RB 22 | 'Crimson Red' | Rheum ×rhabarbarum L. | Michigan, United States | |  | Historic | 2001 | DEVELOPED | PRE 1991 | | | | | Cultivar | All plants died. | 1677559 | RB 22 |
| 311 | RB 23 | 'Cherry Red' | Rheum ×rhabarbarum L. | Michigan, United States | W6 |  | | 2001 | DEVELOPED | NEAR 06/1975 | | | | | Cultivar | | 1677560 | RB 23 |
| 312 | RB 25 | 'Canada Red' | Rheum ×rhabarbarum L. | Michigan, United States | W6 |  | | 2001 | DEVELOPED | NEAR 05/1980 | | | | | Cultivar | | 1677562 | RB 25 |
| 313 | RB 28 | 'Coulter McDonald' | Rheum ×rhabarbarum L. | Manitoba, Canada | W6 |  | | 2001 | DEVELOPED | PRE 1990 | | | | | Cultivar | | 1677565 | RB 28 |
| 314 | RB 3 | 'Linnaeus 137/31' | Rheum ×rhabarbarum L. | United States | W6 |  | | 2001 | DEVELOPED | PRE 1980 | | | | | Cultivar | | 1677539 | RB 3 |
| 315 | RB 31 | 'German Wine (morphotype 2)' | Rheum ×rhabarbarum L. | | W6 |  | | 2001 | DEVELOPED | NEAR 1910 | | | | | Cultivar | | 1677567 | RB 31 |
| 316 | W6 22157 | POL 177606 | Rheum undulatum L. | Poland | | | Historic | 2000 | COLLECTED | 07/1999 | | | | | Cultivar | | 1593533 | W6 22157 |
| 317 | RB 37 | 'Reeds Early Superb' | Rheum ×rhabarbarum L. | United Kingdom | W6 |  | | 1999 | DEVELOPED | NEAR 08/1980 | | | | | Cultivar | | 1677573 | RB 37 |
| 318 | W6 13222 | Camel's leaf | Rheum tataricum L. f. | Kazakhstan | W6 | | Not Available | 1993 | COLLECTED | 07/18/1992 | Sandy-clay (silty) soil, 105km west-southwest of Chelkar | 47.31666667, 58.46666667 | 190 | | Wild material | Annual precipitation 160mm. Vegetation - Artemisia terrae-albae, Poa bulbosa, Stipa capillata, and some Agropyron fragile (about 10%). Lower drought limit of Agropyron. A. fragile is only Agropyron on site | 1062802 | W6 13222 |
| 319 | W6 13223 | VIR U-0134953 | Rheum tataricum L. f. | Kazakhstan | W6 | | Not Available | 1993 | COLLECTED | 07/19/1992 | Clay soil along dry creek bed, 105km west-southwest of Chelkar | 47.48333333, 58.25000000 | 200 | | Wild material | Annual precipitation 200mm. Vegetation - Bromus inermis, Leymus angustus, Elytrigia repens, Agropyron cristatum and Psathyrostachys juncea in better moisture areas, Artemisia terrae-albae, Kochia prostrata, and tall shrubs | 1062805 | W6 13223 |
| 320 | W6 3008 | U004 | Rheum turkestanicum Janisch. | Turkmenistan | | | Historic | 1989 | COLLECTED | 07/14/1989 | 18km S Ashkhabad near Firunzu, Turkmen | 37.83333333, 58.16666667 | 450 | | Wild material | Two plants sampled from population of 150 | 1022880 | W6 3008 |
| 321 | W6 9431 | Uckun | Rheum ribes L. | Hakkâri, Turkey | W6 |  | Not Available | 1986 | COLLECTED | 07/27/1985 | South steep scree slope, 13km E of jct Hakkari-Van road and Hakkari-Yuksekova road. (13km E of Zap River on the Hakkari-Yuksekova road), Hakkari Province | 37.65000000, 44.16666667 | 1820 | | Wild material | Fruits scatter when peduncle pushed. Common. Three bags of fruit collected. | 1048603 | W6 9431 |
| 322 | W6 7158 | VICTORIA | Rheum ×rhabarbarum L. | California, United States | W6 | | Not Available | 1961 | DONATED | 1961 | | | | | Cultivated material | | 1036540 | W6 7158 |
| 323 | W6 42954 | SARU 384 | Rheum alexandrae Batalin | Alaska, United States | W6 | | Not Available | 1948 | DONATED | PRE 2010 | | | | | Wild material | | 1835005 | W6 42954 |