| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Merton Cultivated GB, VC18 South Essex, Little Tawney | Charles Edward Britton | Charles Edward Britton | 16/9/1914 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Mitcham Common | Job Edward Lousley | Job Edward Lousley | 2/9/1956 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Newdigate | Edward Charles Wallace | Botanical Exchange Club of The British Isles Edward Charles Wallace Charles Edward Britton | 6/9/1933 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Newdigate | Charles Edgar Salmon | Charles Edgar Salmon | 15/9/1905 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Newdigate | Edward Charles Wallace | Edward Charles Wallace | 28/9/1930 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Newdigate | Edward Charles Wallace | Botanical Exchange Club of The British Isles Edward Charles Wallace | 6/9/1933 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, North Holmwood | Arthur Langford Still | | 2/9/1935 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Nutfield | | | 21/12/1978 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Nutfield | Edward Charles Wallace | Watson Botanical Exchange Club Edward Charles Wallace | 31/8/1929 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Nutfield | Albert John Crosfield | | 11/9/1884 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Nutfield | J Fraser | J Fraser | 10/9/1916 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Nutfield | Charles Edgar Salmon | Charles Edgar Salmon | 8/1899 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Nutfield | Ernest Stanley Salmon | Croydon Natural History and Scientific Society Ernest Stanley Salmon Henry Franklin Parsons | 17/9/1896 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Nutfield | John Richard Wallis | John Richard Wallis | 4/9/1943 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Nutfield Marsh | Edward Charles Wallace | Edward Charles Wallace | 31/8/1929 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Oxted | Stafford Edwin Chandler | Croydon Natural History and Scientific Society Stafford Edwin Chandler | 17/9/1933 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Reigate | Edward Charles Wallace | Edward Charles Wallace | 21/9/1935 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Sanderstead | | Botanical Society of The British Isles Donald Peter Young | 14/8/1951 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Sanderstead | Donald Peter Young | Donald Peter Young | 14/8/1951 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Send | Charles Edgar Salmon | Croydon Natural History and Scientific Society Charles Edgar Salmon | 9/9/1899 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Wandsworth | Charles Avery | Charles Avery | 3/8/1958 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, West End Common | J Fraser | J Fraser | 17/9/1916 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Wey Navigation, South End | Charles Edgar Salmon | Charles Edgar Salmon Charles Edgar Salmon | 9/9/1899 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Witley Cultivated | William Hadden Beeby | William Hadden Beeby | 6/9/1885 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Witley | Edward Shearburn Marshall | William Hadden Beeby | 17/8/1889 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Woking | William Borrer | Charles Cardale Babington | | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Woking | William Borrer | Charles Cardale Babington | 8/1842 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Woking | S A | Croydon Natural History and Scientific Society Arthur Bennett | 8/1883 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Woking | George Edgar Dennes | George Lloyd | 9/1866 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC18 South Essex, Little Tawney Cultivated | Charles Edward Britton | | 16/9/1914 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC18 South Essex, Sewardstone Green, nr Chingford | James Thomas Powell | | 5/9/1889 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC18 South Essex, Stapleford Tawney | Charles Edward Britton | Charles Edward Britton | 31/8/1913 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC19 North Essex, Abberton | Stanley Thomas Jermyn | | 9/1955 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC19 North Essex, Alphamstone | George Charles Brown | Richard Barker Ullman | 26/8/1928 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC19 North Essex, Alphamstone | George Charles Brown | Botanical Exchange Club of The British Isles George Charles Brown Job Edward Lousley | 26/8/1928 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC19 North Essex, Alphamstone | George Charles Brown | Botanical Society & Exchange Club of The British Isles George Charles Brown | 26/8/1928 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC19 North Essex, Little Maplestead | George Claridge Druce | Botanical Exchange Club of The British Isles | 8/1905 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC19 North Essex, Little Maplestead | George Claridge Druce | Botanical Exchange Club of The British Isles Spencer Henry Bickham | 8/1905 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC19 North Essex, Mersea Island | George Charles Brown | | 9/1912 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC21 Middlesex, Feltham | Richards | A G Leighton Ltd Ministry of Agriculture & Fisheries | 5/11/1924 | K |