| Mentha arvensis x aquatica x spicata = M. x smithiana | | William Sole | Forsyth George Bentham | | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | | | Forsyth George Bentham William Sole | | K |
| 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, 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, 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, VC36 Herefordshire, Sellack Cultivated | Spencer Henry Bickham | Allan Octavian Hume | 10/8/1905 | 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, VC13 West Sussex, Henfield | William Borrer | Charles Cardale Babington | | CGE |
+ | Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC23 Oxfordshire, Shotover | Henry Boswell | John Bland Wood | 12/9/1861 | MANCH |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC57 Derbyshire, Bakewell | Bowman | | 1833 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC11 South Hampshire, Nursling | Raymond Paul Bowman | | 11/8/1981 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC33 East Gloucestershire, Compton Abdale | John Patrick Micklethwait Brenan | | 10/4/1936 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC3 South Devon, Plymstock | Thomas Richard Archer Briggs | | 27/9/1876 | LIV |
| 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, 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, 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, VC17 Surrey, Esher,West End Common | Charles Edward Britton | Charles Edward Britton | 18/9/1927 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Saint Columb Minor | Chambre Corker Vigurs | Botanical Exchange Club of The British Isles Chambre Corker Vigurs Charles Edward Britton | 1/9/1905 | 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, VC10 Isle of Wight, Calbourne | | William Arnold Bromfield William Jackson Hooker | 2/9/1841 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC38 Warwickshire, Haseley | Henry Bromwich | Botanical Exchange Club of The British Isles Shrewsbury Public Library | 8/1881 | K |
| 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, 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 | IE, VCH3,VCH4, South Bride | Isaac Carroll | National Museum Ireland Alexander Goodman More | 9/1855 | DBN |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Esher | S A Chambers | S A Chambers | 1928 | SLBI |
| 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, VC64 Mid-west Yorkshire, Settle | | George Cheetham Churchill John Tatham | 9/1838 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC64 Mid-west Yorkshire, Settle | | George Cheetham Churchill John Tatham | 9/1842 | K |
| 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, VC64 Mid-west Yorkshire, Settle | George Crozier | Spencer Henry Bickham | 1841 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Sennen Cove | William Curnow | | 9/1878 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Sennen Cove | William Curnow | William Hunt Painter | 9/1878 | ABS |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Wendron | Frederick Hamilton Davey | | 15/8/1900 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Wendron | Frederick Hamilton Davey | Allan Octavian Hume | 15/8/1900 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Hick's Mill, Gwennap | Frederick Hamilton Davey | Allan Octavian Hume Frederick Hamilton Davey | 30/8/1911 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Wendron | Frederick Hamilton Davey | Allan Octavian Hume | 12/9/1907 | SLBI |