| Mentha aquatica x spicata = M. x piperita | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1948 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1947 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC3 South Devon, Yelverton | Cyril West | | 8/1948 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC4 North Devon, Lynmouth | George Claridge Druce | Druce Herbarium, Oxford George Claridge Druce J Fraser | 8/1896 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC4 North Devon, Lynton | Spencer Henry Bickham | Spencer Henry Bickham | 17/9/1902 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, Devon, Tiverton | | Job Edward Lousley | 10/9/1943 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC5 South Somerset, Bossington | Edward Shearburn Marshall | | 14/9/1907 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC5 South Somerset, Minehead | Spencer Henry Bickham | Spencer Henry Bickham | 3/9/1895 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC5 South Somerset, Minehead | Isabella Gifford | | 1866 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC5 South Somerset, Minehead | Henry Oxley Stephens | | 1841 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Bath | | Druce Herbarium, Oxford Charlotte Ellen Palmer | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Cheddar | Lawrence | Cheltenham College | 1852 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Compton Dando | James Walter White | William Hunt Painter | 8/1896 | ABS |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Corston Cultivated | David Fry | William Hunt Painter | | ABS |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Corston Cultivated | David Fry | William Hunt Painter | 19/9/1895 | ABS |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, East Harptree | Arthur Langford Still | | 23/8/1938 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Glastonbury | | Charlotte Ellen Palmer | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Glastonbury | | Frederick Townsend | | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Gurney Slade | James Walter White | Watson Botanical Exchange Club James Walter White | 11/9/1925 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Keynsham | David Fry | William Hunt Painter | | ABS |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Lansdown | | | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Mendip Hills | James Walter White | | 16/9/1908 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Mendip Hills | James Walter White | | 16/9/1908 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Priddy Cultivated | Spencer Henry Bickham | Spencer Henry Bickham | 20/8/1909 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Priddy Cultivated | Spencer Henry Bickham | Spencer Henry Bickham | 15/8/1909 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Priddy | James Walter White | Druce's Original Herbarium J Fraser | 16/9/1906 1925 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Priddy | James Walter White | Spencer Henry Bickham | 16/9/1908 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Priddy | James Walter White | Botanical Society & Exchange Club of The British Isles Joseph Edward Little | 24/9/1925 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Priddy | James Walter White | Watson Botanical Exchange Club Job Edward Lousley | 19/9/1929 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Priddy | James Walter White | Watson Botanical Exchange Club | 19/9/1929 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Priddy Nine Barrows | James Walter White | Botanical Exchange Club of The British Isles George Claridge Druce James Walter White | 16/9/1908 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Priddy Nine Barrows | James Walter White | | 16/9/1908 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Priddy-on-Mendip | James Walter White | Spencer Henry Bickham | 24/9/1925 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Sharpham | Beverley Alan Miles | Beverley Alan Miles | 5/9/1954 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Walton in Gordano | James Walter White | Charles Edgar Salmon J Fraser Spencer Henry Bickham | 25/8/1925 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Walton in Gordano | James Walter White | | 25/8/1925 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Walton in Gordano | | Watson Botanical Exchange Club Isaac A Helsby James Walter White | 28/8/1927 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Walton in Gordano | James Walter White | Watson Botanical Exchange Club James Walter White | 28/8/1927 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Weston in Gordano | Cedric Bucknall | Botanical Exchange Club of The British Isles | 8/9/1919 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Weston in Gordano | Cedric Bucknall | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford Arthur Bennett J Fraser | 8/9/1919 | OXF |