| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC3 South Devon, Totnes | Francis Morland Day | Job Edward Lousley Arthur Langford Still | 17/9/1938 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC21 Middlesex, Harefield | Francis Morland Day | | 5/8/1942 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC22 Berkshire, Blewbury | Francis Morland Day | | 7/9/1953 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC33 East Gloucestershire, Compton Abdale | Francis Morland Day | | 21/8/1937 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC36 Herefordshire, Colwall | Francis Morland Day | | 10/1934 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC36 Herefordshire, Colwall | Francis Morland Day | | 30/8/1947 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC36 Herefordshire, Dinedor | Francis Morland Day | | 5/9/1947 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC36 Herefordshire, Hereford | Francis Morland Day | | 30/9/1939 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC36 Herefordshire, Wellington | Francis Morland Day | | 28/9/1937 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC37 Worcestershire, Malvern, Barnard's Green | Francis Morland Day | | 24/9/1935 | 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, VC19 North Essex, Little Maplestead | George Claridge Druce | Botanical Exchange Club of The British Isles Spencer Henry Bickham | 8/1905 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC19 North Essex, Little Maplestead | George Claridge Druce | Botanical Exchange Club of The British Isles | 8/1905 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC33 East Gloucestershire, Compton Abdale | Harry Joseph Riddelsdell | Botanical Society & Exchange Club of The British Isles Charles Edgar Salmon George Claridge Druce Joseph Edward Little | 11/9/1919 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC36 Herefordshire, Ledbury, Underdown Cultivated | Spencer Henry Bickham | Edward Francis Linton George Claridge Druce Spencer Henry Bickham | 10/8/1905 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC89 East Perthshire, Tayside | George Claridge Druce | Botanical Exchange Club of The British Isles George Claridge Druce | 8/1911 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | IE, VCH12 Co. Wexford, Kildavin Bridge | Rosemary Fitzgerald | | 15/9/1991 | DBN |
| Mentha arvensis x aquatica x spicata = M. x smithiana | IE, VCH12 Co. Wexford, Killowen | Rosemary Fitzgerald | | 22/9/1991 | DBN |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC14 East Sussex, Lewes | James Herbert Augustus Jenner | | 8/1882 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC19 North Essex, Abberton | Stanley Thomas Jermyn | | 9/1955 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC57 Derbyshire, Osmaston | | | 8/10/1887 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC85 Fifeshire, Dunfermline | Deane | | 8/1845 | LIV |
| 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, VC12 North Hampshire, Fleet | G A R Watts | J Fraser | 10/9/1934 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC13 West Sussex, Billingshurst | Alfred Webster | J Fraser | 9/1904 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Albury | Edward Charles Wallace | Watson Botanical Exchange Club Edward Charles Wallace J Fraser | 7/9/1929 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Albury | J Fraser | Watson Botanical Exchange Club J Fraser Job Edward Lousley | 20/8/1931 | SLBI |
| Mentha rubra | GB, VC17 Surrey, Albury | J Fraser | Watson Botanical Exchange Club Harold Stuart Thompson J Fraser | 20/9/1931 | BIRM |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Albury | J Fraser | Watson Botanical Exchange Club J Fraser | 20/9/1931 | SLBI |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Brook | J Fraser | J Fraser | 21/9/1902 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Chobham | Job Edward Lousley | Watson Botanical Exchange Club J Fraser | 7/9/1930 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Cobham | J Fraser | J Fraser | 10/1916 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Dorking, Stonebridge | J Fraser | J Fraser | 4/9/1921 | K |
| Mentha gentilis var. wirtgeniana | GB, VC17 Surrey, Kew Cultivated GB, VC17 Surrey, North Sheen | J Fraser | J Fraser | 17/8/1929 | K |
| Mentha gentilis var. wirtgeniana | GB, VC17 Surrey, Kew Cultivated GB, VC17 Surrey, Kingston | J Fraser | J Fraser | 3/9/1930 | K |
| Mentha gentilis var. wirtgeniana | GB, VC17 Surrey, Kingston Cultivated | J Fraser | J Fraser | 24/7/1921 | K |
| Mentha gentilis var. wirtgeniana | GB, VC17 Surrey, Kingston GB, VC17 Surrey, North Sheen Cultivated | J Fraser | J Fraser | 21/8/1933 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, Nutfield | J Fraser | J Fraser | 10/9/1916 | K |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC17 Surrey, West End Common | J Fraser | J Fraser | 17/9/1916 | K |
| Mentha rubra | GB, VC28 West Norfolk, Watton | | George Claridge Druce | 1918 | OXF |