| Mentha arvensis x aquatica = M. x verticillata | GB, VC83 Midlothian, Banlaw | Robert Stephen Adamson | Botanical Society & Exchange Club of The British Isles Joseph Edward Little | 26/8/1913 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC89 East Perthshire, Alyth | McTaggert Cowan | Watson Botanical Exchange Club McTaggert Cowan Spencer Henry Bickham | 8/1912 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, Mid-East Perthshire, Dunkeld | Charles Edward Moss | | 6/9/1913 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC90 Angus, Rescobie | Charles Edward Moss | | 11/9/1912 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC95 Moray, kingston | Mary McCallum Webster | | 18/8/1964 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC95 Moray, Orton | Mary McCallum Webster | | 24/8/1973 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC99 Dunbartonshire, Shandon | Charles Bailey | | 29/9/1897 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC99 Dunbartonshire, Shandon | Charles Bailey | | 29/9/1897 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC99 Dunbartonshire, Shandon | Charles Bailey | | 1/10/1897 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC99 Dunbartonshire, Shandon | Charles Bailey | Watson Botanical Exchange Club | 29/9/1897 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC99 Dunbartonshire, Shandon | Charles Bailey | Joseph Edward Little | 1/10/1897 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, Ambiguous locality (GB), Mere | George Edward Hunt | Spencer Henry Bickham | 1/8/1862 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC100 Clyde Islands, Island of Bute | Edward Shearburn Marshall | | 20/8/1900 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC113 Channel Islands, Saint Saviour's, Guernsey | B H S Russell | | 29/11/1961 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | IE, Kerry, Killarney | | Charles Cardale Babington | 9/6/1836 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | IE, VCH3 West Cork, Gearagh | Peter Derek Sell | | 13/8/1952 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | IE, Cork | J Carroll | | 9/1855 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | IE, VCH16 West Galway, Cornamona | David Allardice Webb | | 31/8/1959 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | IE, VCH33 Fermanagh, Lough Erne | John Ball | | 1837 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | IE, Donegal, Rossmore | Edward Francis Linton | John Durbin Gray | 6/8/1885 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | Upper Ouby | John Fraser John (Joannis) Fraser | John Durbin Gray | 7/1882 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Gwennap | Frederick Hamilton Davey | Frederick Hamilton Davey | 30/8/1911 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Porkellis | Frederick Hamilton Davey | Watson Botanical Exchange Club Albert John Crosfield | 9/9/1907 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Saint Columb Minor | Spencer Henry Bickham | Spencer Henry Bickham | 4/10/1904 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Saint Columb Minor | Spencer Henry Bickham | Spencer Henry Bickham | 4/10/1904 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Saint Columb Minor | Chambre Corker Vigurs | | 1/9/1905 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Sennan | Frederick Robert Tennant | | 8/1899 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Sennen | Frederick Robert Tennant | | 8/1897 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Wendron | Frederick Hamilton Davey | Watson Botanical Exchange Club Frederick Hamilton Davey | 9/9/1907 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Wendron | Frederick Hamilton Davey | Frederick Hamilton Davey | 9/9/1907 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC2 East Cornwall, Porthscatho | Christopher Donald Pigott | | 9/1947 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC3 South Devon, Egg Buckland | Thomas Richard Archer Briggs | Charles Cardale Babington | 30/8/1881 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC3 South Devon, Egg Buckland | Thomas Richard Archer Briggs | Charles Cardale Babington | 30/8/1881 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Langridge | | Charles Cardale Babington | 8/1833 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Newton Saint Loe | Ida Mary Roper | Watson Botanical Exchange Club Spencer Henry Bickham | 13/9/1916 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC10 Isle of Wight, Newbridge | James Henry Augustus Steuart | John Durbin Gray | 9/1894 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC10 Isle of Wight, Swainston | Arthur George Gregor | Arthur George Gregor Spencer Henry Bickham | 6/9/1892 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC10 Isle of Wight, Totland,Lacy's Farm | Bolton King | Botanical Exchange Club of The British Isles Charlotte Ellen Palmer | 8/1893 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC13 West Sussex, Henfield | William Borrer | Charles Cardale Babington | | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC14 East Sussex, Lewes | James Herbert Augustus Jenner | James Herbert Augustus Jenner | 24/8/1877 | CGE |