| Rumex crispus x obtusifolius = R. x pratensis | GB, VC19 North Essex, Broxbourne | William Williamson Newbould | Allan Octavian Hume Frederick Townsend | 19/7/1848 | SLBI |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC20 Hertfordshire, Broxbourne | William Williamson Newbould | Charles Bailey William Williamson Newbould | 19/7/1848 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC20 Hertfordshire, Hitchin | Joseph Edward Little | Watson Botanical Exchange Club Joseph Edward Little | 18/7/1920 | SLBI |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC21 Middlesex, Chiswick | William Robert Sherrin | | 7/1903 | SLBI |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC21 Middlesex, Chiswick | William Robert Sherrin | | 7/1903 | SLBI |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC21 Middlesex, Finchley | William Turner Thiselton Dyer | Charles Bailey | 5/8/1870 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC21 Middlesex, Finchley | William Turner Thiselton Dyer | Augustin Ley | 5/8/1870 | BIRM |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC21 Middlesex, Stoke Newington | Joseph Woods | Allan Octavian Hume Frederick Townsend | 8/8/1831 | SLBI |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC21 Middlesex, Uxbridge | William Robert Sherrin | | 8/1904 | SLBI |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC21 Middlesex, West Drayton | Leslie Beeching Hall William Robert Sherrin | | 28/7/1920 | SLBI |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC22 Berkshire, Twyford | Job Edward Lousley | Job Edward Lousley | 17/7/1932 | SLBI |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC23 Oxfordshire, Binsey | Charles Edward Hubbard | Job Edward Lousley | 19/8/1944 | SLBI |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC29 Cambridgeshire, Chatteris | Alfred Fryer | Alfred Fryer Charles Bailey | 9/1881 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC31 Huntingdonshire, Warboys | Alfred Fryer | Alfred Fryer Charles Bailey | 9/7/1881 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC32 Northamptonshire, Brackley | George Claridge Druce | Charles Bailey | 9/1900 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC34 West Gloucestershire, Clifton | | | 7/1880 | ABS |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC36 Herefordshire, Chase Wood | William Henry Purchas | Charles Bailey William Lowndes Notcutt | | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC36 Herefordshire, Colwall | Richard Francis Towndrow | Augustin Ley | 20/7/1899 | BIRM |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC36 Herefordshire, Ross,Chase Wood | William Henry Purchas | Charles Bailey William Lowndes Notcutt | 23/8/1850 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC36 Herefordshire, Sellack | Augustin Ley | Augustin Ley | 13/9/1876 | BIRM |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC37 Worcestershire, Madresfield | Richard Francis Towndrow | Botanical Exchange Club of The British Isles | 11/7/1889 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC37 Worcestershire, Madresfield | Richard Francis Towndrow | Botanical Exchange Club of The British Isles | 11/7/1889 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC37 Worcestershire, Worcester | Joseph Hesselgrave Thompson | | 27/7/1853 | ABS |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC38 Warwickshire, Dunchurch | Stephen Troyte Dunn | Charles Bailey | 20/7/1896 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC38 Warwickshire, Straight Mile | Stephen Troyte Dunn | | 20/7/1896 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC38 Warwickshire, Straight Mile | Stephen Troyte Dunn | Botanical Exchange Club of The British Isles | 20/7/1896 | ABS |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC38 Warwickshire, Warwick | Henry Bromwich | Charles Bailey | 9/1874 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC38 Warwickshire, Warwick | Henry Bromwich | Charles Bailey | 9/1874 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC38 Warwickshire, Warwick | Henry Bromwich | Augustin Ley | 9/1874 | BIRM |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC38 Warwickshire, Warwick | Henry Bromwich | Allan Octavian Hume Frederick Townsend | 9/1871 | SLBI |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC50 Denbighshire, Llangollen,Pengwern | Charles Bailey | | 30/8/1877 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC51 Flintshire, Prestatyn | W Horton-Smith | | 6/8/1916 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC55 Leicestershire, Cropston Reservoir | Thomas Arthur Preston | Charles Bailey Frederick Thompson Mott Thomas Thorp | 1886 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC55 Leicestershire, Gumley | Frederick Thompson Mott | Charles Bailey Frederick Thompson Mott Thomas Thorp | 7/1878 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC55 Leicestershire, Loddington | Frederick Thompson Mott | Charles Bailey Frederick Thompson Mott | | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC55 Leicestershire, Lutterworth | Frederick Thompson Mott | Charles Bailey Frederick Thompson Mott Thomas Thorp | 26/9/1877 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC55 Leicestershire, Woodhouse Eaves | Frederick Thompson Mott | Charles Bailey Frederick Thompson Mott | 7/1874 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC57 Derbyshire, Edlaston | Edward Francis Linton | Charles Bailey Edward Francis Linton | 8/8/1891 | MANCH |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC57 Derbyshire, Edlaston | | Augustin Ley William Richardson Linton | 8/8/1890 | BIRM |
| Rumex crispus x obtusifolius = R. x pratensis | GB, VC57 Derbyshire, Edlaston | William Richardson Linton | William Richardson Linton | 8/8/1891 | SLBI |