| Mentha arvensis x spicata = M. x gracilis | GB, VC36 Herefordshire, Wareham | Augustin Ley | | 15/9/1886 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC36 Herefordshire, Llanwarne | B King | | 1887 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC17 Surrey, Gomshall Cultivated | J J | | 8/1870 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC8 South Wiltshire, Bedwyn Brail | Cecil Prescott Hurst | Druce Herbarium, Oxford | 14/7/1922 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Stonesfield | William H Holliday | | 27/9/1861 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Woodstock | William H Holliday | | 9/1861 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC8 South Wiltshire, Mere Cultivated | W Herridge | | | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC79 Selkirkshire, Ettrick | Ida Margaret Hayward | Ida Margaret Hayward | 9/1909 | OXF |
| Mentha suaveolens x longifolia = M. x rotundifolia var. webberi | GB, VC79 Selkirkshire, Galashiels | Ida Margaret Hayward | Ida Margaret Hayward | 8/1913 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC17 Surrey, Wallington Cultivated GB, VC20 Hertfordshire, Roydon | Arthur Langford Still | Botanical Exchange Club of The British Isles | 6/9/1936 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC22 Berkshire, Didcot | Richard Charles Palmer | | 29/8/1975 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC28 West Norfolk, Woodrising | Kirby Trimmer | | 9/1850 | OXF |
| Mentha spicata x suaveolens = M. x villosa | GB, VC23 Oxfordshire, Culham | Richard Charles Palmer | | 17/7/1976 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Lansdown | | | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Weston in Gordano | Ida Mary Roper | Ida Mary Roper | 27/8/1919 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Weston in Gordano | Ida Mary Roper | Ida Mary Roper | 29/8/1919 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC17 Surrey, Virginia Water | | | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC21 Middlesex, Northwood Cultivated | Rex Alan Henry Graham | Rex Alan Henry Graham | 16/8/1952 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC23 Oxfordshire, Oxford Cultivated | | | 9/1866 | OXF |
| 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, VC27 East Norfolk, Heigham | Kirby Trimmer | | 9/1862 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Heigham Sound | Kirby Trimmer | | 9/1861 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Limpenhoe | Kirby Trimmer | | 9/1863 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Norwich, Heigham | Kirby Trimmer | | 9/1862 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Southwood | Kirby Trimmer | | 6/1861 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Southwood | Kirby Trimmer | | 1861 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Southwood | Kirby Trimmer | | 9/1859 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Sprowston | Kirby Trimmer | | 8/1858 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Tibenham | Kirby Trimmer | | 9/1858 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC28 West Norfolk, Holme Hale | Kirby Trimmer | | 10/1867 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC34 West Gloucestershire, Longhope | Gustavus A Ornano St Brody | | 1869 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC37 Worcestershire, Alfrick Cultivated | Job Edward Lousley | Botanical Exchange Club of The British Isles | 19/8/1934 | OXF |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC39 Staffordshire, Barton under Needwood | Kirby Trimmer | | 15/8/1854 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC39 Staffordshire, Langley | Kirby Trimmer | | 8/1854 | OXF |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC49 Caernarvonshire, Capel Curig | | Druce's Original Herbarium | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC64 Mid-west Yorkshire, Cookridge | William Arthur Sledge | Botanical Exchange Club of The British Isles William Arthur Sledge | 26/9/1928 | OXF |
| Mentha arvensis x spicata = M. x gracilis | | | | | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC2 East Cornwall, Looe | Arthur Langford Still | | 8/1906 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC3 South Devon, Bovey Tracey | Todd | | 1920 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC3 South Devon, Meavy | William Booth Waterfall | | 15/7/1878 | OXF |