| 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, VC38 Warwickshire, Warwick | Henry Bromwich | Druce Herbarium, Oxford F Stratton | 9/1877 | 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 arvensis x spicata = M. x gracilis | GB, VC40 Shropshire | William John Blake | Druce Herbarium, Oxford J Fraser William John Blake | 1820 | 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 spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC41 Glamorganshire, Cardiff | Arthur Edward Wade | Botanical Society & Exchange Club of The British Isles | 26/8/1947 | 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, VC41 Glamorganshire, Llangennith | Arthur Langford Still | Edward Charles Wallace | 16/9/1934 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC41 Glamorganshire, Llanmadoc | George Claridge Druce | George Claridge Druce | 6/1916 | 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 aquatica x spicata = M. x piperita | GB, VC43 Radnorshire, Bough Wood | | Druce Herbarium, Oxford | 1927 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC43 Radnorshire, Glasbury | George Claridge Druce | | 9/1929 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC47 Montgomeryshire, Craig Breidden | George Claridge Druce | George Claridge Druce | 1896 | 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, VC49 Caernarvonshire Cultivated | | | 9/1896 | 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, VC50 Denbighshire, Gresford | John Bland Wood | John Bland Wood | 24/10/1841 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC50 Denbighshire, Old Colwyn Cultivated | | George Claridge Druce | | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC49,VC50, Llanrwst | William Sole | George Claridge Druce | 1777 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC52 Anglesey, Beaumaris | George Claridge Druce | Druce Herbarium, Oxford | 8/1919 | OXF |
| Mentha spicata x suaveolens = M. x villosa | GB, VC54 North Lincolnshire, Swaby | | | | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC54 North Lincolnshire, Swaby | William Wright Mason | | 31/8/1928 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC54 North Lincolnshire, Tobyon | Marsden | Druce Herbarium, Oxford George Claridge Druce | | OXF |
| Mentha spicata x suaveolens = M. x villosa | GB, VC54 North Lincolnshire, West Keal | | | 21/8/1930 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC54 North Lincolnshire, Woodhall Spa | Frank Simpson Alston | | 1917 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC55 Leicestershire, Leicester | | | | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC55 Leicestershire, Leicester | Geoffrey John Victor Bemrose | George Claridge Druce | 1930 | OXF |
| Mentha spicata x suaveolens = M. x villosa | GB, VC55 Leicestershire, Woodhouse Eaves | Frederick Thompson Mott | Botanical Exchange Club of The British Isles Frederick Thompson Mott | 8/1895 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC56 Nottinghamshire, Nottingham Cultivated | R Bulley | R Bulley | 8/1933 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC57 Derbyshire, Belper | | Botanical Exchange Club of The British Isles Druce's Original Herbarium Edward Francis Linton | 9/1892 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC57 Derbyshire, Belper | Edward Francis Linton | Druce Herbarium, Oxford Edward Francis Linton | 22/9/1892 | 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, VC57 Derbyshire, Dovedale Cultivated | George Claridge Druce | Druce Herbarium, Oxford Edward Shearburn Marshall J Fraser | 9/1913 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC57 Derbyshire, Dovedale | | | 5/9/1893 | OXF |
| Mentha spicata x suaveolens = M. x villosa | GB, VC57 Derbyshire, Matlock | | Charlotte Ellen Palmer | | OXF |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC57 Derbyshire, Shirley Cultivated | | Botanical Exchange Club of The British Isles William Richardson Linton | 2/9/1898 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC57 Derbyshire, Shirley Cultivated | William Richardson Linton | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford Henry Elliott Fox J Fraser John Gilbert Baker William Richardson Linton | 4/9/1889 to 8/1890 | OXF |