| Mentha aquatica x spicata = M. x piperita | | Octavius Corder | C E Robinson | | SLBI |
| Mentha aquatica x spicata = M. x piperita | | | Allan Octavian Hume Frederick Townsend | | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Bissoe | Frederick Hamilton Davey | Allan Octavian Hume | 14/9/1900 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Bissoe | Frederick Hamilton Davey | Allan Octavian Hume | 6/9/1900 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Crantock | Allan Octavian Hume | Allan Octavian Hume | 31/8/1901 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Crantock | Allan Octavian Hume | Allan Octavian Hume | 31/8/1901 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Crantock | Allan Octavian Hume | Allan Octavian Hume | 31/8/1901 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Crantock | Allan Octavian Hume | Allan Octavian Hume | 31/8/1901 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Cubert | Job Edward Lousley | Job Edward Lousley | 19/9/1936 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Hea Moor | Job Edward Lousley | Job Edward Lousley | 17/9/1936 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Helston | James Cunnack | William Hadden Beeby | 8/1878 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Newquay | | Allan Octavian Hume | 30/8/1900 | SLBI |
| 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, Ponsanooth | Frederick Hamilton Davey | Allan Octavian Hume | 30/8/1899 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Saint Columb Minor Cultivated | | Watson Botanical Exchange Club Spencer Henry Bickham William Robert Sherrin | 21/8/1908 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Tresamble | Job Edward Lousley | Job Edward Lousley | 14/9/1936 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Trungle Moor, Paul | Job Edward Lousley | Job Edward Lousley | 17/9/1936 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC2 East Cornwall, Sowden's Bridge | Francis Rilstone | Watson Botanical Exchange Club | 30/9/1926 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC2 East Cornwall, Sowden's Bridge | Francis Rilstone | Watson Botanical Exchange Club Job Edward Lousley | 30/9/1926 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, Cornwall GB, VC17 Surrey, Croydon Cultivated | Arthur Bennett William Curnow | | 1890 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC3 South Devon, Aveton Gifford | Arthur Langford Still | Job Edward Lousley | 21/8/1935 | SLBI |
| 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, VC6 North Somerset, East Harptree | Arthur Langford Still | | 23/8/1938 | SLBI |
| 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, 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, 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 | James Walter White | Botanical Exchange Club of The British Isles | 4/10/1923 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Weston in Gordano | James Walter White | Job Edward Lousley | 22/8/1927 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Weston in Gordano | James Walter White | Watson Botanical Exchange Club | 4/8/1924 5/9/1924 | 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, VC11 South Hampshire, Beaulieu | Richard Paget Murray | Frederick Townsend | 8/9/1885 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC13 West Sussex, River Rother | M P junior | Dulwich College | 8/1895 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC14 East Sussex, Danehill | Arthur Langford Still | Botanical Exchange Club of The British Isles Job Edward Lousley | 8/9/1936 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC14 East Sussex, Danehill | Job Edward Lousley | Job Edward Lousley | 11/9/1937 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC14 East Sussex, Danehill | Job Edward Lousley | Job Edward Lousley | 11/9/1937 | 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, VC16 West Kent, Chelsfield | William Henry Griffin | Allan Octavian Hume | 29/8/1903 | SLBI |