| Mentha arvensis x spicata = M. x gracilis | GB, VC55 Leicestershire, Leicester | | | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Penzance | Edgar A Rees | Druce Herbarium, Oxford | 7/10/1923 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, Cornwall | Todd | Druce Herbarium, Oxford | 1920 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Bath | | Druce Herbarium, Oxford Charlotte Ellen Palmer | | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC9 Dorset, Swanage | Richard Charles L'Estrange Burges | Druce Herbarium, Oxford | 1938 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC10 Isle of Wight, Binstead | Mary Louisa Wedgwood | Druce Herbarium, Oxford | 1908 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC14 East Sussex, Danehill | Arthur Langford Still | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford Edward Charles Wallace | 8/9/1926 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC14 East Sussex, Groomsbridge | Richard Charles Palmer | Druce Herbarium, Oxford | 9/1956 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC14 East Sussex, Sheepscote Valley | Richard Charles Palmer | Druce Herbarium, Oxford | 14/8/1953 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC16 West Kent, Lamberhurst | John Richard Wallis | Druce Herbarium, Oxford | 8/1938 | OXF |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC17 Surrey, Chiddingfold | Edmund Browne Bishop | Druce Herbarium, Oxford | | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC17 Surrey, Leith Hill | Edward Charles Wallace | Botanical Society & Exchange Club of The British Isles Druce Herbarium, Oxford Edward Charles Wallace | 6/8/1934 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC17 Surrey, Sutton Cultivated | Edward Charles Wallace | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford | 9/1937 | OXF |
| Mentha spicata x suaveolens = M. x villosa | GB, VC19 North Essex, Great Henny | John Bury Higgens | Druce Herbarium, Oxford | 10/1916 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC19 North Essex, Peldon | George Charles Brown Herbert Stanley Redgrove | Druce Herbarium, Oxford | 30/8/1923 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC20 Hertfordshire, Bayford | | Druce Herbarium, Oxford | | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC20 Hertfordshire, Hertford | John Bury Higgens | Druce Herbarium, Oxford | 1912 | OXF |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC20 Hertfordshire, Northaw Cultivated | Spencer Henry Bickham | Druce Herbarium, Oxford Henry Elliott Fox Spencer Henry Bickham | 22/9/1918 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC20 Hertfordshire, Waterford | John Ansell | Druce Herbarium, Oxford | 5/8/1846 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC20 Hertfordshire, Waterford Marsh | John Ansell | Druce Herbarium, Oxford | 22/8/1846 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC21 Middlesex, Acton | Alfred Loydell | Druce Herbarium, Oxford | 7/1898 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC21 Middlesex, Stanmore Common | Arthur Langford Still | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford Edward Charles Wallace | 19/9/1936 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC22 Berkshire, Didcot | George Claridge Druce | Druce Herbarium, Oxford | 9/1888 9/1889 10/1891 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC22 Berkshire, Didcot | Richard Charles Palmer | Druce Herbarium, Oxford | 8/8/1998 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC22 Berkshire, Newbury | George Claridge Druce | Druce Herbarium, Oxford | 9/1891 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC12,VC22, Swallowfield | Gertrude Foggitt | Druce Herbarium, Oxford | 9/1920 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC23 Oxfordshire, Brackley | Richard Charles Palmer | Druce Herbarium, Oxford | 4/9/1963 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Goring Cultivated | Harry Joseph Riddelsdell | Druce Herbarium, Oxford | 2/9/1938 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Horley | Richard Charles Palmer | Druce Herbarium, Oxford | 27/9/1969 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC23 Oxfordshire, Mixbury | Richard Charles Palmer | Druce Herbarium, Oxford | 4/9/1963 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Oxford | | Druce Herbarium, Oxford Arthur Langford Still | 6/9/1937 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Oxford | | Druce Herbarium, Oxford | 8/9/1937 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Oxford | Richard Charles Palmer | Druce Herbarium, Oxford | 8/1958 | OXF |
| Mentha spicata x suaveolens = M. x villosa | GB, VC23 Oxfordshire, Oxford | Humphrey John Moule Bowen | Druce Herbarium, Oxford | 30/7/1965 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC23 Oxfordshire, Risinghurst | Richard Charles Palmer | Druce Herbarium, Oxford | 27/8/1968 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Shotover | George Claridge Druce | Druce Herbarium, Oxford | 30/9/1887 | OXF |
| Mentha spicata x suaveolens = M. x villosa | GB, VC23 Oxfordshire, Wolvercote | George Claridge Druce | Druce Herbarium, Oxford | 9/1912 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC23 Oxfordshire, Woodstock | George Claridge Druce | Druce Herbarium, Oxford | | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC23 Oxfordshire, Wroxton | Richard Charles Palmer | Druce Herbarium, Oxford | 29/8/1964 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC27 East Norfolk, Banningham | Kirby Trimmer | Druce Herbarium, Oxford | 8/1859 | OXF |