| Mentha aquatica x spicata = M. x piperita | GB, VC64 Mid-west Yorkshire, Beckwithshaw | Edward Charles Wallace | Joseph Norman Frankland | 2/9/1940 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC64 Mid-west Yorkshire, Huby | Edward Charles Wallace | | 24/8/1943 | K |
| Mentha x piperita | GB, VC64 Mid-west Yorkshire, Huby | Edward Charles Wallace | | 24/8/1947 | K |
| Mentha aquatica x spicata = M. x piperita | IE, VCH38 Co. Down, Saul | Coslett Herbert Waddell | Alexander Goodman More Coslett Herbert Waddell | 2/10/1894 | DBN |
| Mentha aquatica x spicata = M. x piperita | IE, VCH38 Co. Down, Saul | Coslett Herbert Waddell | | 2/10/1894 | DBN |
| Mentha dumetorum | GB, VC1 West Cornwall, Crantock | Chambre Corker Vigurs | Chambre Corker Vigurs | 29/8/1908 | ABS |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Goonhavern | Chambre Corker Vigurs | | 1/9/1912 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Newquay | Chambre Corker Vigurs | Allan Octavian Hume | 30/8/1900 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Trevance Valley | Chambre Corker Vigurs | Chambre Corker Vigurs | 14/9/1905 | ABS |
| Mentha aquatica x spicata = M. x piperita | GB, VC113 Channel Islands, Guernsey | | Chambre Corker Vigurs | 30/8/1904 | ABS |
| Mentha x piperita | GB, VC28 West Norfolk, Dersingham | W A Vice | Albert Bruce Jackson | 25/8/1899 | K |
| Mentha aquatica x spicata = M. x piperita | GB, VC18 South Essex, Maldon | Ezekiel George Varenne | | 1847 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Catfield | Kirby Trimmer | | 8/1859 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Glastonbury | | Frederick Townsend | | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC10 Isle of Wight, Shanklin | | Frederick Townsend | 8/1838 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC33 East Gloucestershire, Tredington Mill | Frederick Townsend | Allan Octavian Hume Frederick Townsend | 14/9/1880 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC37 Worcestershire, Malvern | A Hamburgh | Frederick Townsend | 8/1842 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC37 Worcestershire, Malvern | Frederick Townsend | Allan Octavian Hume Frederick Townsend | 8/1842 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC47 Montgomeryshire, Llansantffraid | Clifford Charles Townsend | | 8/9/1987 | K |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC36 Herefordshire, Colwall | Richard Francis Towndrow | | 7/8/1899 | BIRM |
| Mentha x piperita | GB, VC1 West Cornwall, Holywell Bay | Edgar Thurston | Edgar Thurston | 22/8/1916 | K |
| Mentha x piperita | GB, VC2 East Cornwall, Sowden's Bridge | Edgar Thurston | Edgar Thurston | 25/9/1921 | K |
| Mentha piperita | GB, VC5 South Somerset, Staple Hill | Harold Stuart Thompson | Harold Stuart Thompson | 26/9/1915 | BIRM |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Norton's Wood | Edward Charles Wallace Harold Stuart Thompson | | 4/9/1932 | BIRM |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Walton Moor | Harold Stuart Thompson | | 30/8/1925 | BIRM |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC11 South Hampshire, Southampton Common | Harold Stuart Thompson | | 17/8/1924 | BIRM |
| Mentha aquatica x spicata = M. x piperita | GB, VC28 West Norfolk, Dersingham | Eric Lister Swann | | 31/8/1950 | OXF |
| Mentha x piperita | GB, VC28 West Norfolk, Dersingham | Eric Lister Swann | Botanical Society of The British Isles | 31/8/1950 | K |
| Mentha aquatica x spicata = M. x piperita | GB, VC28 West Norfolk, Roydon Common | Eric Lister Swann | Botanical Society of The British Isles Eric Lister Swann | 29/8/1950 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC28 West Norfolk, Roydon Common | Eric Lister Swann | Eric Lister Swann | 29/8/1950 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC28 West Norfolk, Roydon Common | Eric Lister Swann | Botanical Society & Exchange Club of The British Isles | 29/8/1950 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC34 West Gloucestershire, Longhope | Gustavus A Ornano St Brody | Druce Herbarium, Oxford Frederic Stratton | 1869 | OXF |
| 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, VC14 East Sussex, Danehill | Arthur Langford Still | Botanical Exchange Club of The British Isles | 8/9/1936 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC17 Surrey, Wallington Cultivated GB, VC6 North Somerset, Weston in Gordano | Arthur Langford Still | | 8/1937 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC24 Buckinghamshire, Iver | Arthur Langford Still | | 21/9/1935 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC90 Angus, Brechin,Fern Den | Arthur Langford Still | | | SLBI |
| Mentha aquatica x spicata = M. x piperita | IE, VCH39 Co. Antrim, Carnmoney | Samuel Alexander Stewart | Science & Art Museum Dublin | 14/9/1872 | DBN |
| Mentha aquatica x spicata = M. x piperita | IE, VCH39 Co. Antrim, Carnmoney | Samuel Alexander Stewart | Science & Art Museum Dublin | 12/8/1893 | DBN |
| Mentha aquatica x spicata = M. x piperita | IE, VCH39 Co. Antrim, Masserine Park | Samuel Alexander Stewart | | 2/8/1885 | DBN |