| Mentha arvensis x spicata = M. x gracilis | GB, VC85 Fifeshire, Balmuto Cultivated | John Thomas Irvine Boswell-Syme | Druce Herbarium, Oxford Frederic Stratton | 9/1870 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC84 West Lothian, Linlithgow | | Isaac Bayley Balfour | 12/9/1871 | OXF |
| Mentha suaveolens x longifolia = M. x rotundifolia var. webberi | GB, VC83 Midlothian, Slateford | James Fraser | George Claridge Druce | 6/9/1920 | 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 arvensis x spicata = M. x gracilis | GB, VC83 Midlothian, Musselburgh | John Hutton Balfour | | | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC83 Midlothian, Hawthornden | John Hutton Balfour | Druce Herbarium, Oxford J Fraser John Hutton Balfour | 1835 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC80 Roxburghshire, Galashiels | George Claridge Druce | George Claridge Druce | 9/1917 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC79 Selkirkshire, Galashiels | Ida Margaret Hayward | Druce Herbarium, Oxford | 1913 | 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, VC79 Selkirkshire, Galashiels | J Fraser | | 1909 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC79 Selkirkshire, Galashiels | George Claridge Druce | | 9/1917 | OXF |
| Mentha suaveolens x longifolia = M. x rotundifolia var. webberi | GB, VC79 Selkirkshire, Galashiels | George Claridge Druce Ida Margaret Hayward | | 8/1913 | OXF |
| Mentha suaveolens x longifolia = M. x rotundifolia var. webberi | GB, VC79 Selkirkshire, Galashiels | Ida Margaret Hayward | Ida Margaret Hayward | 8/1913 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC79 Selkirkshire, Ettrick | Ida Margaret Hayward | Ida Margaret Hayward | 9/1909 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC78 Peeblesshire, Peebles | Charles Bailey | Botanical Exchange Club of The British Isles Charlotte Ellen Palmer George Claridge Druce | 27/9/1898 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC78 Peeblesshire, Peebles | George Claridge Druce | | 9/1917 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC78 Peeblesshire, Peebles | George Claridge Druce | George Claridge Druce | | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC78 Peeblesshire, Peebles | George Claridge Druce | | 9/1917 | 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 aquatica x spicata = M. x piperita | GB, VC78 Peeblesshire, Kittlegairy Hill | Charles Bailey | | 27/9/1898 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC74 Wigtownshire, Wigtown | George Claridge Druce | | | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC74 Wigtownshire, Garlieston | George Claridge Druce | | 7/1912 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC70 Cumberland, Skinwith Beck | Clara Winsome Muirhead | Carlisle Museum Herbarium | 27/8/1949 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC70 Cumberland, Melmerby | | Druce Herbarium, Oxford | 9/1920 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC70 Cumberland, Drigg | Robert Hardy Williamson | George Claridge Druce | 1924 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC70 Cumberland, Drigg | Robert Hardy Williamson | | 1924 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC69 Westmorland, Skelwith Bridge | | Druce Herbarium, Oxford | 8/1890 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC69 Westmorland, Skelwith Bridge | Henry Elliott Fox | | 8/1890 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC69 Westmorland, Kirkby Stephen | | | 8/1913 | 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, Northumberland, Twizel GB, VC81 Berwickshire, Whiteadder | | Druce Herbarium, Oxford | 1904 | 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, VC64 Mid-west Yorkshire, Ribblehead | Edgar Marston Reynolds | | 1916 | 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 | GB, VC64 Mid-west Yorkshire, Howgill | R C Palmer | Druce Herbarium, Oxford | 9/1952 | OXF |
| Mentha suaveolens x longifolia = M. x rotundifolia var. webberi | GB, VC64 Mid-west Yorkshire, Hawksworth | John Cryer | Botanical Society & Exchange Club of The British Isles Druce Herbarium, Oxford John Cryer | 14/8/1925 | 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 | GB, VC64 Mid-west Yorkshire, Buckden | Richard Charles Palmer | Druce Herbarium, Oxford | 30/8/1952 | OXF |
| Mentha suaveolens x longifolia = M. x rotundifolia var. webberi | GB, VC64 Mid-west Yorkshire, Baildon | John Cryer | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford John Cryer | 8/8/1917 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC63 South-west Yorkshire, Doncaster | John Hardy | John Hardy Charles Bailey | | OXF |