| 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 arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Oxford | Henry Boswell | Henry Boswell | | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC1 West Cornwall, Crantock GB, VC23 Oxfordshire, Oxford Cultivated | J Fraser | Druce Herbarium, Oxford | 9/1915 | OXF |
| Mentha spicata x suaveolens = M. x villosa | GB, VC23 Oxfordshire, Oxford | Humphrey John Moule Bowen | Druce Herbarium, Oxford | 30/7/1965 | OXF |
| Mentha spicata x suaveolens = M. x villosa | GB, VC23 Oxfordshire, Oxford | George Claridge Druce | | 9/1926 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Oxford, Yardley Lodge Cultivated | George Claridge Druce | | 9/1915 | OXF |
+ | Impatiens glandulifera | GB, VC23 Oxfordshire, Oxford,Port Meadow dump | Humphrey John Moule Bowen | | 17/8/1957 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC23 Oxfordshire, Risinghurst | Richard Charles Palmer | Druce Herbarium, Oxford | 27/8/1968 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC23 Oxfordshire, Shotover | | Oxford University Herbarium | 30/9/1887 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC23 Oxfordshire, Shotover | George Claridge Druce | | 9/1885 | OXF |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC23 Oxfordshire, Shotover | George Claridge Druce | Druce Herbarium, Oxford J Fraser | 9/1888 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Shotover | George Claridge Druce | Druce Herbarium, Oxford | 30/9/1887 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Shotover | George Claridge Druce | George Claridge Druce J Fraser | 9/1885 | OXF |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC23 Oxfordshire, Shotover Hill | | Henry Boswell | 9/1861 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Stonesfield | William H Holliday | | 27/9/1861 | OXF |
| Mentha spicata x suaveolens = M. x villosa | GB, VC23 Oxfordshire, Weston on the Green | George Claridge Druce | | 8/1913 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC23 Oxfordshire, Wigginton | George Claridge Druce | George Claridge Druce | 9/1916 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC23 Oxfordshire, Wolvercote | George Claridge Druce | George Claridge Druce | 1896 | 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 arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Woodstock | William H Holliday | | 9/1861 | OXF |
+ | Impatiens glandulifera | GB, VC23 Oxfordshire, Wootton near Woodstock,By River Glyme near Hordley Farm | R C Palmer | | 9/9/1969 | 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, VC22,VC23, Clanfield | Richard Charles Palmer | | 4/9/1970 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC22,VC23, Oxford | F Gambier Parry | George Claridge Druce | 9/1916 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC24 Buckinghamshire, Brickhill | George Claridge Druce | George Claridge Druce | 8/1902 | OXF |
| Mentha spicata x suaveolens = M. x villosa | GB, VC24 Buckinghamshire, Ellesborough | George Claridge Druce | George Claridge Druce | 9/1896 to 9/1897 | OXF |
| Mentha spicata x suaveolens = M. x villosa | GB, VC24 Buckinghamshire, Ellesborough | Frances Louisa Foord-Kelcey | | 8/1911 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC24 Buckinghamshire, High Wycombe | George Claridge Druce | | 1897 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC24 Buckinghamshire, Westbury | George Claridge Druce | George Claridge Druce | 9/1902 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC26 West Suffolk, Chevington | Joseph Edward Little | Joseph Edward Little | 21/9/1912 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC27 East Norfolk, Banningham | Kirby Trimmer | Druce Herbarium, Oxford | 8/1859 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC27 East Norfolk, Banningham | Kirby Trimmer | | 8/1859 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC27 East Norfolk, Burgh Saint Margaret | Rowland John Burdon | | 25/8/1926 | 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, Catfield | Kirby Trimmer | | 8/1859 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC27 East Norfolk, Fersfield | Kirby Trimmer | Oxford University Herbarium | 8/1859 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC27 East Norfolk, Fersfield | Kirby Trimmer | | 8/1859 | OXF |