| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Southwood | Kirby Trimmer | | 6/1861 | 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, VC27 East Norfolk, Southwood | Kirby Trimmer | | 1861 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Southwood | Kirby Trimmer | | 6/1861 | OXF |
| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Sprowston | Kirby Trimmer | | 8/1858 | OXF |
| Mentha spicata x suaveolens = M. x villosa | GB, VC27 East Norfolk, Swannington | Kirby Trimmer | | 8/1864 | OXF |
| Mentha spicata x suaveolens = M. x villosa | GB, VC27 East Norfolk, Swannington | Kirby Trimmer | | 8/1864 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC27 East Norfolk, Thorpe Episcopi | Kirby Trimmer | | 8/1849 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC27 East Norfolk, Thurgarton | Kirby Trimmer | Oxford University Herbarium | 8/1857 | 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, VC27 East Norfolk, Whitwell | Kirby Trimmer | The British Museum | 28/8/1883 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Whitwell | Kirby Trimmer | British Museum (Natural History) | 28/8/1883 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC27 East Norfolk, Whitwell | Kirby Trimmer | The British Museum Watson Botanical Exchange Club Arthur Bennett Charles Edgar Salmon | 28/8/1883 | CGE |
| Mentha x piperita | GB, VC27 East Norfolk, Whitwell | Kirby Trimmer | The British Museum Watson Botanical Exchange Club Albert Bruce Jackson Arthur Bennett Charles Edgar Salmon | 28/8/1883 | K |
+ | Bupleurum tenuissimum | GB, VC28 West Norfolk | Kirby Trimmer | Charles Bailey | 8/1875 | MANCH |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, VC28 West Norfolk, Billingford | Kirby Trimmer | Druce Herbarium, Oxford | 11/1868 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC28 West Norfolk, Blo Norton | Kirby Trimmer | | 8/1867 | OXF |
| Carex arenaria | GB, VC28 West Norfolk, Brancaster | Kirby Trimmer | | 20/6/1835 | E |
| Carex riparia | GB, VC28 West Norfolk, Brancaster | Kirby Trimmer | John Ball | 22/5/1835 | E |
| Potamogeton pusillus | GB, VC28 West Norfolk, Brancaster | Kirby Trimmer | Mantua And Montferrat Charles Ottley Groom | 8/1836 | BON |
| Sarcocornia perennis | GB, VC28 West Norfolk, Brancaster | Kirby Trimmer | Job Edward Lousley | 8/1836 | SLBI |
+ | Frankenia laevis | GB, VC28 West Norfolk, Burnham Overy | Kirby Trimmer | Charles Bailey John Harbord Lewis | 8/1875 | MANCH |
| Leonurus cardiaca | GB, VC28 West Norfolk, Burnham Thorpe | Kirby Trimmer | George Lloyd | 9/1836 | K |
| Silene conica | GB, VC28 West Norfolk, East Harling | Kirby Trimmer | Harry James Goddard | 6/1869 | K |
| Potamogeton pectinatus | GB, VC27 East Norfolk, Great Yarmouth GB, VC28 West Norfolk, Fakenham | Kirby Trimmer William Lowndes Notcutt | Charles Bailey William Lowndes Notcutt | 3/6/1852 1860 | MANCH |
| Mentha aquatica x spicata = M. x piperita | GB, VC28 West Norfolk, Holme Hale | Kirby Trimmer | | 10/1867 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC28 West Norfolk, Holme Hale | Kirby Trimmer | Oxford University Herbarium | 7/1863 | OXF |
| Elytrigia juncea | GB, VC28 West Norfolk, Hunstanton | Kirby Trimmer | Charles Ottley Groom | 6/8/1835 | BON |
| Ajuga chamaepitys | GB, VC28 West Norfolk, Wolferton | Kirby Trimmer | George Lloyd | 5/1837 | K |
| Mentha arvensis x spicata = M. x gracilis | GB, VC28 West Norfolk, Woodrising | Kirby Trimmer | | 9/1850 | OXF |
| Mentha arvensis x spicata = M. x gracilis | GB, VC28 West Norfolk, Yaxham | Kirby Trimmer | | 8/1866 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, Norfolk | Kirby Trimmer | Frederic Stratton John Thomas Irvine Boswell-Syme | 1869 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, Norfolk, Bradfield | Kirby Trimmer | | 8/1867 | OXF |
+ | Galium parisiense | GB, Norfolk, Castle Acre | Kirby Trimmer | John Hutton Balfour | 4/7/1836 | PTH |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, Norfolk, Great Melton | Kirby Trimmer | | 8/1854 | OXF |
| Mentha spicata x suaveolens = M. x villosa var. alopecuroides | GB, Norfolk, Kenninghall | Kirby Trimmer | | 8/1861 | OXF |
+ | Frankenia laevis | GB, Norfolk, Titchwell | Kirby Trimmer | John Hutton Balfour | 10/8/1835 | PTH |
| Potamogeton obtusifolius | GB, VC38 Warwickshire, Coventry | Kirby Trimmer | Alfred Fryer Charles Bailey | 7/1839 | MANCH |
| Potamogeton lucens | GB, VC38 Warwickshire, Sowe Waste, Coventry | | Kirby Trimmer | | ABS |
| 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 |
| Potamogeton alpinus | GB, VC58 Cheshire, Langley | Kirby Trimmer | Alfred Fryer Charles Bailey | | MANCH |
| Potamogeton polygonifolius | GB, VC58 Cheshire, Macclesfield | Kirby Trimmer | Alfred Fryer Charles Bailey | | MANCH |
| Potamogeton polygonifolius | GB, VC58 Cheshire, Sutton | Kirby Trimmer | | 7/1854 | MANCH |