| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC64 Mid-west Yorkshire, Tadcaster | J Jackson | John Durbin Gray | 7/1881 | CGE |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC64 Mid-west Yorkshire, Tadcaster | J Jackson | Arthur Bennett | 8/1881 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC61,VC62,VC64, York | Henry John Wilkinson | John Durbin Gray | 9/1883 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC65 North-west Yorkshire, Aske Wood | James Ward | | 9/9/1835 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC65 North-west Yorkshire, Richmond | James Ward | John Stevens Henslow | 9/9/1831 | CGE |
| Mentha aquatica x spicata = M. x piperita var. crispa | GB, VC67 South Northumberland, Langley | George Johnston | | 10/9/1834 | 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. crispa | GB, VC68 North Northumberland, Langleeford | George Johnston | Charles Cardale Babington | 9/10/1834 | CGE |
| Mentha aquatica x spicata = M. x piperita var. crispa | GB, Northumberland | | Lucy M Rickards | | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC70 Cumberland, Drigg | Robert Hardy Williamson | Botanical Society & Exchange Club of The British Isles George Claridge Druce Joseph Edward Little | 9/1924 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC70 Cumberland, Skirwith | Clara Winsome Muirhead | Job Edward Lousley Carlisle Museum Herbarium | 27/8/1949 | 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 | GB, VC83 Midlothian, Swanston | | | 9/1884 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC88 Mid Perthshire, Fortingall | Edward Shearburn Marshall | | 2/9/1913 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC88 Mid Perthshire, Fortingall | Charles Edward Moss | | 2/9/1913 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC88 Mid Perthshire, Fortingall | Charles Edward Moss | | 2/9/1913 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC88 Mid Perthshire, Glen Lyon | William Richardson Linton | William Richardson Linton | 1/8/1891 | 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 | GB, VC102 South Ebudes, Colonsay GB, VC9 Dorset, Edmondsham Cultivated | Edward Francis Linton | Edward Francis Linton | 15/9/1909 | CGE |
| Mentha aquatica x spicata = M. x piperita | IE, Cork | Isaac Carroll | | 9/1851 | CGE |
| Mentha aquatica x spicata = M. x piperita | IE, VCH19 Co. Kildare, Ballitore | Isaac Carroll | | 9/1848 | CGE |
| Mentha aquatica x spicata = M. x piperita | IE, VCH35 West Donegal, Tangaveane | | | 28/8/1952 | 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 arvensis x aquatica = M. x verticillata | | | Charles Cardale Babington | | CGE |
| Mentha arvensis x aquatica = M. x verticillata | | William Sole | Martyn | | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC1 West Cornwall, Perranarworthal | Frederick Hamilton Davey | Watson Botanical Exchange Club Frederick Hamilton Davey Spencer Henry Bickham | 3/8/1911 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC2 East Cornwall, Carkeel | Thomas Richard Archer Briggs | Charles Cardale Babington | 19/9/1873 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC2 East Cornwall, Saint Mellion | Thomas Richard Archer Briggs | | 4/9/1877 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC3 South Devon, Bere Ferrers | Cyril West | | 8/1957 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC3 South Devon, Egg Buckland | Thomas Richard Archer Briggs | Charles Cardale Babington | 7/9/1877 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1947 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1947 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1948 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1948 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1947 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1947 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC5 South Somerset, Hestercombe | Edward Shearburn Marshall | | 16/8/1906 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC5 South Somerset, Kings Brompton | Edward Shearburn Marshall | Spencer Henry Bickham | 9/9/1907 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC5 South Somerset, Minehead | Edward Shearburn Marshall | Edward Francis Linton | 20/9/1906 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC5 South Somerset, Monkton Heathfield | Edward Shearburn Marshall | Spencer Henry Bickham | 16/8/1906 | CGE |