| Mentha aquatica x spicata = M. x piperita | GB, VC99 Dunbartonshire, Tarbet | | Charles Cardale Babington George Arnott Walker Arnott | 8/1834 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC40 Shropshire, Nobold | William Allport Leighton | Charles Cardale Babington | 4/9/1835 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC40 Shropshire, Nobold | William Allport Leighton | Charles Cardale Babington | 4/9/1835 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC65 North-west Yorkshire, Aske Wood | James Ward | | 9/9/1835 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC10 Isle of Wight, Shanklin | | Frederick Townsend | 8/1838 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC59 South Lancashire, Liverpool | Joseph Dickinson | Liverpool University Joseph Dickinson | 8/1839 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC17 Surrey, Mitcham | | | 1840 | LIV |
+ | Mentha citrata | GB, VC30 Bedfordshire | | Charles Bailey John Wilson Rimington | 1840 | MANCH |
| Mentha aquatica x spicata = M. x piperita | GB, VC5 South Somerset, Minehead | Henry Oxley Stephens | | 1841 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC64 Mid-west Yorkshire, Acomb | R Spence | Botanical Society of Edinburgh George Cheetham Churchill | 8/1841 | K |
| Mentha aquatica x spicata = M. x piperita | GB, VC50 Denbighshire, Gresford | John Bland Wood | John Bland Wood | 24/10/1841 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC37 Worcestershire, Malvern | A Hamburgh | Frederick Townsend | 8/1842 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC37 Worcestershire, Malvern | Frederick Townsend | Allan Octavian Hume Frederick Townsend | 8/1842 | SLBI |
| Mentha aquatica x spicata = M. x piperita | GB, VC20 Hertfordshire, Bengeo | William Higgins Coleman | Druce Herbarium, Oxford | 30/9/1843 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC20 Hertfordshire, Roydon | William Higgins Coleman | Druce Herbarium, Oxford J Fraser | 4/10/1843 | OXF |
| Mentha aquatica x spicata = M. x piperita | IE, VCH39 Co. Antrim, Carmoney Church | | | 1846 | DBN |
| Mentha aquatica x spicata = M. x piperita | GB, VC37 Worcestershire, Saint George's, Worcester | Joseph Hesselgrave Thompson | William Hunt Painter | 1/8/1846 | ABS |
| Mentha aquatica x spicata = M. x piperita | GB, VC20 Hertfordshire, Waterford Marsh | John Ansell | Druce Herbarium, Oxford | 22/8/1846 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC18 South Essex, Maldon | Ezekiel George Varenne | | 1847 | LIV |
+ | Mentha aquatica x spicata = M. x piperita | GB, Kent, Orpington,River Cray | | Charles Bailey John Wilson Rimington | 1848 | MANCH |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC62 North-east Yorkshire, Scarborough | | Charles Bailey John Wilson Rimington | 1848 | MANCH |
| Mentha aquatica x spicata = M. x piperita | GB, VC83 Midlothian, Crookston | John Thomas Irvine Boswell-Syme | Botanical Society of London | 9/1848 | K |
| Mentha aquatica x spicata = M. x piperita | IE, VCH19 Co. Kildare, Ballitore | Isaac Carroll | | 9/1848 | CGE |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC36 Herefordshire | Alfred William Bennett | Charles Bailey | 9/1850 | MANCH |
| Mentha aquatica x spicata = M. x piperita | IE, VCH4 Mid Cork, Crosshaven | Isaac Carroll | Isaac Carroll | 9/1851 | DBN |
| Mentha aquatica x spicata = M. x piperita | IE, Cork | Isaac Carroll | | 9/1851 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC6 North Somerset, Cheddar | Lawrence | Cheltenham College | 1852 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, Lancashire | George Chadwick | | 7/1852 | LIV |
| Mentha aquatica x spicata = M. x piperita | GB, VC39 Staffordshire, Langley | Kirby Trimmer | | 8/1854 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC29 Cambridgeshire, Barrington | William Williamson Newbould | | 9/9/1856 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC69 Westmorland, Little Langdale | | John Stuart Mill Helen Taylor | 9/1857 | K |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC5 South Somerset, Aisholt | T Clark | | 11/9/1857 | BIRM |
| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Sprowston | Kirby Trimmer | | 8/1858 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Tibenham | Kirby Trimmer | | 9/1858 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC59 South Lancashire, Leyland | | | 9/1858 | LIV |
| 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 aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Southwood | Kirby Trimmer | | 9/1859 | OXF |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC59 South Lancashire, Ormskirk | Henry Smith Fisher | Charles Bailey John Harbord Lewis | 1860 | MANCH |
+ | Mentha aquatica x spicata = M. x piperita | GB, VC38 Warwickshire, Warwick | Henry Bromwich | Charles Bailey John Barrow | 9/1860 | MANCH |