| Mentha aquatica x spicata = M. x piperita | | | Druce Herbarium, Oxford | | OXF |
| Mentha aquatica x spicata = M. x piperita | | Octavius Corder | C E Robinson | | SLBI |
| Mentha aquatica x spicata = M. x piperita | | | J Dickinson | | LIV |
| Mentha aquatica x spicata = M. x piperita | | | Liverpool University Joseph Dickinson | | LIV |
| Mentha aquatica x spicata = M. x piperita | | | Botanical Exchange Club of The British Isles George Claridge Druce | | CGE |
| Mentha aquatica x spicata = M. x piperita | Cultivated | James Walter White | Druce Herbarium, Oxford Edward Walter Hunnybun J Fraser | | OXF |
| Mentha aquatica x spicata = M. x piperita | | | John Harriman William Sole | | LIV |
| Mentha aquatica x spicata = M. x piperita | | | Allan Octavian Hume Frederick Townsend | | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Lizard Cultivated | William Curnow | | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, Cornwall GB, VC17 Surrey, Croydon Cultivated | Arthur Bennett | Botanical Exchange Club of The British Isles | | LIV |
| 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, Corston Cultivated | David Fry | William Hunt Painter | | ABS |
| 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, 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, VC17 Surrey, Croydon Cultivated | Arthur Bennett | | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC17 Surrey, Virginia Water | | | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC20 Hertfordshire, Bayford | | Druce Herbarium, Oxford | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC23 Oxfordshire, Woodstock | George Claridge Druce | Druce Herbarium, Oxford | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC37 Worcestershire, Alfrick | Richard Francis Towndrow | Charles Cardale Babington | | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC38 Warwickshire, Brailes | | Druce Herbarium, Oxford Henry Elliott Fox | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC40 Shropshire, Weston Lullingfields | John Eddowes Bowman | Charles Cardale Babington | | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC54 North Lincolnshire, Tobyon | Marsden | Druce Herbarium, Oxford George Claridge Druce | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC57 Derbyshire | | William Hadden Beeby | | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, Lancashire | Leonard Albert Livermore | | | K |
| Mentha aquatica x spicata = M. x piperita | GB, VC61 South-east Yorkshire, Hull | | Forsyth George Bentham | | K |
| Mentha aquatica x spicata = M. x piperita | GB, VC63 South-west Yorkshire, Doncaster | John Hardy | John Hardy Charles Bailey | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC78 Peeblesshire, Peebles | George Claridge Druce | George Claridge Druce | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC83 Midlothian, Edinburgh | B A G | William Jackson Hooker | | K |
| Mentha aquatica x spicata = M. x piperita | GB, VC87 West Perthshire, Callander | Young | | | OXF |
| Mentha aquatica x spicata = M. x piperita | IE, VCH4 Mid Cork, Inishcarra | | | | K |
| Mentha x piperita | | John Eddowes Bowman | Shrewsbury Public Library | | K |
| Mentha x piperita | | | Dubois J Fraser William Stonestreet | | K |
| Mentha x piperita | | | | | K |
| Mentha x piperita | GB, VC1 West Cornwall, Newlyn, Penzance GB, VC17 Surrey, Croydon Cultivated | Arthur Bennett | J Fraser | | K |
| Mentha x piperita | GB, VC2 East Cornwall, Par | | Arthur Bennett | | K |
| Mentha x piperita | GB, VC54 North Lincolnshire, Hull | | Forsyth George Bentham | | K |
| Mentha x piperita | GB, VC93 North Aberdeenshire, New Aberdour | J Fraser | E H Metcalf | | K |
| Mentha aquatica x spicata = M. x piperita | GB, VC90 Angus, Brechin,Fern Den | Arthur Langford Still | | | SLBI |