| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC28 West Norfolk, Billingford | Kirby Trimmer | Druce Herbarium, Oxford | 11/1868 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC32 Northamptonshire, Duston | George Claridge Druce | Druce Herbarium, Oxford | 9/1876 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC34 West Gloucestershire, River Wye | George Claridge Druce | Druce Herbarium, Oxford | 9/1900 | OXF |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC36 Herefordshire, Ledbury Cultivated | Spencer Henry Bickham | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford Spencer Henry Bickham | 20/9/1918 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC37 Worcestershire, Kidderminster | Richard Charles L'Estrange Burges | Druce Herbarium, Oxford | 1936 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC37 Worcestershire, Powick | Richard Francis Towndrow | Druce Herbarium, Oxford | 10/9/1900 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC38 Warwickshire, Balsall Common | Henry Bromwich | Druce Herbarium, Oxford F Stratton | 9/1869 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC38 Warwickshire, Haseley Cultivated | Henry Bromwich | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford | 8/1890 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC38 Warwickshire, Sutton Park | Richard Charles Palmer | Druce Herbarium, Oxford | 16/9/1995 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC40 Shropshire, Clun Church | Richard Charles Palmer | Druce Herbarium, Oxford | 4/9/1951 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC41 Glamorganshire, Bishopston | Arthur Langford Still | Botanical Society & Exchange Club of The British Isles Druce Herbarium, Oxford | 3/9/1937 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC41 Glamorganshire, Parkmill, Gower | Arthur Langford Still | Botanical Society & Exchange Club of The British Isles Druce Herbarium, Oxford | 1/9/1937 | OXF |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC47 Montgomeryshire, Pen-y-bont-fawr | H J Killick | Druce Herbarium, Oxford | 20/8/1999 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC52 Anglesey, Beaumaris | George Claridge Druce | Druce Herbarium, Oxford | 8/1919 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC57 Derbyshire, Bradford Dale | H J Killick | Druce Herbarium, Oxford | 28/8/1999 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC57 Derbyshire, Dovedale | George Claridge Druce | Druce Herbarium, Oxford | 1912 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC59 South Lancashire, Whalley Range Cultivated | Charles Bailey | Druce Herbarium, Oxford Charles Bailey | 26/8/1897 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC59 South Lancashire, Whalley Range Cultivated | Charles Bailey | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford Charles Bailey | 11/8/1900 1/9/1900 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC59 South Lancashire, Whalley Range Cultivated | Charles Bailey | Druce Herbarium, Oxford Charles Bailey | 1/9/1900 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC60 West Lancashire, Fairhaven Cultivated | | Druce Herbarium, Oxford Charles Bailey | 29/8/1906 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC64 Mid-west Yorkshire, Buckden | Richard Charles Palmer | Druce Herbarium, Oxford | 30/8/1952 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC64 Mid-west Yorkshire, Nunwick | Catherine Muriel Rob | Botanical Society of The British Isles Druce Herbarium, Oxford Catherine Muriel Rob | 11/9/1947 | OXF |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC68 North Northumberland, Hedgehope Hill | W Fampton | Druce Herbarium, Oxford William Wilson Saunders Dawes Cholmeley Russell | | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC69 Westmorland, Kirkby Stephen | | Druce Herbarium, Oxford | 8/1902 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC69 Westmorland, Skelwith Bridge | | Druce Herbarium, Oxford | 8/1890 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC78 Peeblesshire, Kittlegairy Hill | Charles Bailey | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford | 27/9/1898 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC79 Selkirkshire, Galashiels | Ida Margaret Hayward | Druce Herbarium, Oxford | 1914 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC83 Midlothian, Saint Bernards Well | William John Blake | Druce Herbarium, Oxford Charles Bailey | 1820 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC87 West Perthshire, Kennetpans | Edmund Frederic Warburg | Druce Herbarium, Oxford | 21/8/1947 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC88 Mid Perthshire, Fortingall | Edmund Frederic Warburg | Druce Herbarium, Oxford | 2/9/1947 | OXF |
| Mentha suaveolens x longifolia = M. x rotundifolia var. webberi | GB, VC90 Angus, Arbroath | R & M Corstorphine | Botanical Society & Exchange Club of The British Isles Druce Herbarium, Oxford | 19/9/1912 | OXF |
| Mentha suaveolens x longifolia = M. x rotundifolia var. webberi | GB, VC90 Angus, Bridge of Dun GB, VC90 Angus, Glen Ogilvie | | Druce Herbarium, Oxford George Claridge Druce | 1912 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC98 Argyllshire, Ballachulish | Edmund Frederic Warburg | Druce Herbarium, Oxford Edmund Frederic Warburg | 28/8/1947 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC98 Argyllshire, Ballachulish | Edmund Frederic Warburg | Druce Herbarium, Oxford | 28/8/1947 | OXF |
| Mentha spicata x longifolia = M. x villosonervata | GB, VC112 Shetland, Lerwick | Richard Charles Palmer | Druce Herbarium, Oxford | 15/8/1960 | OXF |
| Mentha spicata x suaveolens = M. x villosa | GB, VC113 Channel Islands, Saint Lawrence's Valley, Jersey | Jean Piquet | Druce Herbarium, Oxford | 8/1854 | OXF |
| Mentha arvensis x spicata = M. x gracilis | IE, Cork, Mallow | George Claridge Druce | Druce Herbarium, Oxford | 1927 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC41 Glamorganshire, Dinas Powis GB, VC41 Glamorganshire, Wenvoe | S Dewar | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford National Museum of Wales Arthur Edward Wade | 14/9/1932 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC14 East Sussex, Haywards Heath | Richard Charles Palmer | Oxford University Herbarium | 1958 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC23 Oxfordshire, Shotover | | Oxford University Herbarium | 30/9/1887 | OXF |