| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC5 South Somerset, Hestercombe | Laurence Athelstan Molesworth Riley | Laurence Athelstan Molesworth Riley Riley | 4/10/1906 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC5 South Somerset, Kingston | Laurence Athelstan Molesworth Riley | Laurence Athelstan Molesworth Riley | 26/9/1906 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Bath Cultivated | William Sole | Samuel Goodenough | | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Compton Dando | Henry Francois Devis | | 27/8/1916 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Compton Dando | James Walter White | James Walter White William Hunt Painter | 2/9/1896 | ABS |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Compton Dando | James Walter White | William Hunt Painter | 1/8/1896 | ABS |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Dundry | George Henry Kendrick Thwaites | George Lloyd | 8/1846 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Dundry | George Henry Kendrick Thwaites | George Henry Kendrick Thwaites | 8/1846 | K |
| 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, Litton | Harold Stuart Thompson | Harold Stuart Thompson | 22/8/1935 | BIRM |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Litton | Harold Stuart Thompson | Botanical Exchange Club of The British Isles | 12/8/1935 to 22/8/1935 | K |
| 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, VC6 North Somerset, Pensford | Henry Haselfoot Haines | | 6/8/1938 | ABS |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Rowberrow | James Walter White | | 23/8/1908 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Rowberrow | James Walter White | Job Edward Lousley | 13/8/1915 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Rowberrow | James Walter White | | 13/8/1915 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Rowberrow | James Walter White | Charles Edward Britton | 23/8/1903 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC6 North Somerset, Rowberrow | James Walter White | | 29/9/1927 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, Somerset | William Hudson William Sole | Carlisle Museum Herbarium Samuel Goodenough | | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, Somerset | William Sole | | | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, Somerset | William Sole | Carlisle Museum Herbarium Samuel Goodenough | | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC7 North Wiltshire, Aldbourne | Emily Sophia Todd | J Fraser | 1/9/1927 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC9 Dorset, Shapwick | William Richardson Linton | | 27/8/1893 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC9 Dorset, Silton | W Herridge | University of Exeter | 1916 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC10 Isle of Wight | Edward Francis Linton | | 22/9/1893 | LIV |
| 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, VC10 Isle of Wight, Landguard | Frederick Townsend | | 1854 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC10 Isle of Wight, Luccombe Chine | Benjamin Thompson Lowne jnr | Benjamin Thompson Lowne jnr | 27/8/1911 | K |
| 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, Shide | | E H Metcalf | | 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, VC10 Isle of Wight, Totland | Bolton King | Charlotte Ellen Palmer | 8/1893 | LIV |
| 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 | LIV |
| 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, VC11 South Hampshire, Blashford | William Richardson Linton | | 25/8/1893 | 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, VC12 North Hampshire, Fleet | G A R Watts | J Fraser | 10/9/1934 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC12 North Hampshire, Liphook | Edward Charles Wallace | Edward Charles Wallace | 15/9/1935 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC12 North Hampshire, Waggoners Wells | Edward Charles Wallace | Job Edward Lousley | 15/9/1935 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC12 North Hampshire, Winchfield Cultivated | Arthur Langford Still | Job Edward Lousley | 26/8/1935 | SLBI |