| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Whitwell | Kirby Trimmer | The British Museum | 28/8/1883 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC99 Dunbartonshire, Tarbet | | Charles Cardale Babington George Arnott Walker Arnott | 8/1834 | CGE |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC17 Surrey, Croydon Cultivated GB, VC57 Derbyshire | Arthur Bennett William Curnow | Charles Cardale Babington Arthur Bennett | 8/1878 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Lizard | James Cunnack | Charles Cardale Babington | 7/1878 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC38 Warwickshire, Balsall Common | Henry Bromwich | Charles Cardale Babington | 9/1871 | CGE |
| Mentha aquatica x spicata = M. x piperita var. crispa | GB, VC68 North Northumberland, Langleeford | Charles Cardale Babington | George Johnston John Stevens Henslow | 10/9/1834 | CGE |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC45 Pembrokeshire, Castlemartin | | Charles Cardale Babington | 6/9/1851 | CGE |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC17 Surrey, Kew Gardens Cultivated | John Gilbert Baker | Charles Cardale Babington John Gilbert Baker | 9/1868 | CGE |
| Mentha aquatica x spicata = M. x piperita var. crispa | GB, VC68 North Northumberland, Langleeford | George Johnston | Charles Cardale Babington | 9/10/1834 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC38 Warwickshire, Warwick | Henry Bromwich | Charles Cardale Babington | 9/1877 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC38 Warwickshire, Balsall Common | Robert Large Baker | Botanical Exchange Club of The British Isles Charles Cardale Babington | 9/1880 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC40 Shropshire, Nobold | William Allport Leighton | Charles Cardale Babington | 4/9/1835 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC38 Warwickshire, Balsall Common | Henry Bromwich | Botanical Exchange Club of The British Isles Charles Cardale Babington | 9/1880 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC40 Shropshire, Nobold | William Allport Leighton | Charles Cardale Babington | 4/9/1835 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC47 Montgomeryshire, Glan Hafren | | Charles Cardale Babington | 8/1871 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC40 Shropshire, Weston Lullingfields | John Eddowes Bowman | Charles Cardale Babington | | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Mullion | James Cunnack | Charles Cardale Babington | 8/1882 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC3 South Devon, Plym Valley | Thomas Richard Archer Briggs | Charles Cardale Babington | 29/8/1877 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC37 Worcestershire, Alfrick | Richard Francis Towndrow | Charles Cardale Babington | | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC78 Peeblesshire, Kittlegairy Hill | Charles Bailey | Botanical Exchange Club of The British Isles | 27/9/1898 | CGE |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC20 Hertfordshire, Northaw | Spencer Henry Bickham | | 20/9/1918 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Crantock | Spencer Henry Bickham | Spencer Henry Bickham | 6/10/1904 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Priddy Cultivated | Spencer Henry Bickham | Spencer Henry Bickham | 20/8/1909 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC37 Worcestershire, Old Storridge | Richard Francis Towndrow | Spencer Henry Bickham William Richardson Linton | 1/9/1902 | CGE |
| Mentha aquatica x spicata = M. x piperita | IE, VCH39 Co. Antrim, Carnmoney | Coslett Herbert Waddell | Watson Botanical Exchange Club Coslett Herbert Waddell Spencer Henry Bickham | 8/1895 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC58 Cheshire, Hale | Spencer Henry Bickham | Spencer Henry Bickham | 9/8/1868 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Saint Columb Minor Cultivated | Spencer Henry Bickham | Spencer Henry Bickham | 21/8/1908 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Crantock | Spencer Henry Bickham | Spencer Henry Bickham | 6/10/1904 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC58 Cheshire, Hale | Spencer Henry Bickham | Spencer Henry Bickham | 9/8/1868 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC31 Huntingdonshire, Huntingdon Cultivated | Edward Walter Hunnybun | Spencer Henry Bickham | 22/9/1908 | CGE |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC20 Hertfordshire, Northaw | Spencer Henry Bickham | Spencer Henry Bickham | 16/9/1915 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC58 Cheshire, Hale | Spencer Henry Bickham | Spencer Henry Bickham | 9/8/1868 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC58 Cheshire, Hale | Spencer Henry Bickham | Spencer Henry Bickham | 8/8/1868 | CGE |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC20 Hertfordshire, Northaw | Spencer Henry Bickham | Spencer Henry Bickham | 13/9/1913 | CGE |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC20 Hertfordshire, Northaw | Spencer Henry Bickham | Spencer Henry Bickham | 22/9/1918 | CGE |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC20 Hertfordshire, Northaw | Spencer Henry Bickham | Spencer Henry Bickham | 20/9/1918 | CGE |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC20 Hertfordshire, Northaw | Spencer Henry Bickham | Spencer Henry Bickham | 13/9/1913 | CGE |
| Mentha aquatica x spicata = M. x piperita var. citrata | North Wales | William Peete | Spencer Henry Bickham | 1844 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Saint Columb Minor Cultivated | Spencer Henry Bickham | Spencer Henry Bickham | 4/10/1904 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Crantock | Spencer Henry Bickham | Spencer Henry Bickham | 5/10/1904 | CGE |