| Mentha aquatica x spicata = M. x piperita | GB, VC58 Cheshire, Willaston (Wirral) | Robert Brown | | 9/9/1876 | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC59 South Lancashire, Saint Helens | Richard Kenneth Brummitt | | 21/8/1958 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC59 South Lancashire, Standish | Richard Kenneth Brummitt | | 9/9/1959 | LIV |
| Salix cinerea x aurita = S. x multinervis | GB, VC52 Anglesey, Benllech | Herbert Edwin Bunker | | 7/1963 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC59 South Lancashire, Garston | T C | | 26/8/1855 | LIV |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC17 Surrey, Chiddingfold | Arthur H Carter | Job Edward Lousley | 17/9/1934 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, Lancashire | George Chadwick | | 7/1852 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC57 Derbyshire, Shirley Cultivated | | Merseyside County Museums | | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC69 Westmorland, Ambleside | Allen J Coombes | | 28/8/1977 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Penzance | William Curnow | | 9/1878 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Praa Sands | William Curnow | | 9/1878 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC1 West Cornwall, Saint Ives | William Curnow | | 8/1878 | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC1 West Cornwall, Sennen | William Curnow | | 9/1878 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC1 West Cornwall, Sennen Cove | William Curnow | | 9/1878 | LIV |
| Mentha aquatica x spicata = M. x piperita var. citrata | GB, VC17 Surrey, Croydon Cultivated GB, VC57 Derbyshire | Arthur Bennett William Curnow | Arthur Bennett | 7/1874 to 8/1874 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC51 Flintshire, River Alyn | Arthur Augustine Dallman | Arthur Augustine Dallman | 24/8/1906 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC17 Surrey, Moulsey | Eyre Champion de Crespigny | | | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC17 Surrey, Moulsey | Eyre Champion de Crespigny | | 1887 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC59 South Lancashire, Liverpool | Joseph Dickinson | Liverpool University Joseph Dickinson | 8/1839 | LIV |
| Salix fragilis x triandra = S. x alopecuroides | GB, VC62 North-east Yorkshire, Kilvington | William Foggitt | Liverpool University IRGMA Joseph Dickinson | 5/1852 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC64 Mid-west Yorkshire, Ingleton | | Liverpool University Joseph Dickinson | 7/8/1850 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC69 Westmorland, Lake Windermere | | Liverpool University Joseph Dickinson | 1/8/1849 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC88 Mid Perthshire, Glen Farg | Joseph Dickinson | Liverpool University Joseph Dickinson | 1834 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC19 North Essex, Little Maplestead | George Claridge Druce | Botanical Exchange Club of The British Isles | 8/1905 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC20 Hertfordshire, Northaw GB, VC36 Herefordshire, Ledbury Cultivated | Spencer Henry Bickham | George Claridge Druce | 20/10/1918 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Shotover | George Claridge Druce | Botanical Exchange Club of The British Isles George Claridge Druce | 9/1888 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC23 Oxfordshire, Shotover Hill | George Claridge Druce | | 9/1895 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC24 Buckinghamshire, Iver | George Claridge Druce | Merseyside County Museums Herbarium | 9/1902 | LIV |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC36 Herefordshire, Ledbury, Underdown Cultivated | Spencer Henry Bickham | Edward Francis Linton George Claridge Druce Spencer Henry Bickham | 10/8/1905 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC36 Herefordshire, Sellack | Augustin Ley | Botanical Exchange Club of The British Isles Edward Francis Linton George Claridge Druce William Richardson Linton | 16/8/1899 | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC59 South Lancashire, Accrington Cultivated | John Dugdale | | 7/1853 | LIV |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC86 Stirlingshire, Stirling | John Firminger Duthie | John Firminger Duthie | 28/9/1871 | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC58 Cheshire, Barnston | | Ellis | 15/8/1908 | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC58 Cheshire, Noctorum | | Ellis | 24/7/1908 | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC60 West Lancashire, Bolton le Sands | Ellis | Ellis | 19/8/1908 | LIV |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC17 Surrey, Coldharbour | Robert Edwin Christopher Ferreira | | 6/1948 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC62 North-east Yorkshire, Haxby | Henry John Wilkinson | H Fisher | 9/1883 | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC58 Cheshire, Bromborough | Henry Smith Fisher | | | LIV |
| Mentha arvensis x spicata = M. x gracilis | GB, VC1 West Cornwall, Gilly Tresamble | Catherine Muriel Rob Thomas Jackson Foggitt | Joseph Norman Frankland | 17/9/1926 | LIV |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC28 West Norfolk, Harling Road | Catherine Muriel Rob Thomas Jackson Foggitt | Joseph Norman Frankland | 14/9/1926 | LIV |