| + | Saponaria officinalis | GB, VC61 South-east Yorkshire, York | Harold Stuart Thompson | Harold Stuart Thompson | 1886 | BIRM | 22/7/2009 |
| + | Saponaria officinalis | GB, VC28 West Norfolk, Hunstanton | William Hillhouse | William Hillhouse | 20/8/1879 | BIRM | 9/3/2010 |
| + | Sanicula europaea | GB, VC30 Bedfordshire, Flitwick | Mary Ann Brooks | | | BIRM | 3/5/2009 |
| + | Sanicula europaea | GB, VC30 Bedfordshire, Flitwick | Mary Ann Brooks | Mary Ann Brooks | | BIRM | 3/5/2009 |
| + | Sanicula europaea | GB, VC57 Derbyshire, Deep Dale | Augustin Ley | Augustin Ley | 9/6/1870 | BIRM | 9/3/2010 |
| + | Sanguisorba minor | GB, VC6 North Somerset, Saint Vincent's Rocks | William Hunt Painter | William Hunt Painter | 6/1880 | ABS | 22/1/2009 |
| + | Sanguisorba minor | GB, VC34 West Gloucestershire, Clifton Down | William Hunt Painter | William Hunt Painter | 5/1883 | ABS | 22/1/2009 |
| + | Sanguisorba minor | GB, VC22 Berkshire, Radley | Edward Charles Wallace | Harold Stuart Thompson | 5/8/1935 | BIRM | 21/2/2009 |
| + | Sanguisorba minor | GB, VC1 West Cornwall, Mullion Cove | Ivor W Evans | Harold Stuart Thompson | 9/8/1935 | BIRM | 21/2/2009 |
| + | Sanguisorba minor | GB, VC62 North-east Yorkshire, Redcar | William A Mudd | George Stephen West | 7/1852 | BIRM | 5/4/2009 |
| + | Samolus valerandi | GB, VC6 North Somerset, Burnham-on-Sea | Harold Stuart Thompson | Harold Stuart Thompson | 25/6/1932 | BIRM | 17/1/2009 |
| + | Samolus valerandi | GB, VC1 West Cornwall, Lamorna Cove | D A J Little | | 25/4/1942 | ABS | 21/1/2009 |
| + | Samolus valerandi | GB, VC1 West Cornwall, Clodgy Point | D A J Little | | 17/9/1946 | ABS | 21/1/2009 |
| + | Samolus valerandi | GB, VC6 North Somerset, Walton Moor | Harold Stuart Thompson | Harold Stuart Thompson | 19/7/1933 | BIRM | 21/1/2009 |
| + | Samolus valerandi | GB, VC10 Isle of Wight, Yarmouth | Douglas Montague Heath | Douglas Montague Heath | 13/7/1914 | BIRM | 13/3/2009 |
| + | Sambucus nigra | GB, VC30 Bedfordshire, Flitwick | Mary Ann Brooks | | | BIRM | 6/2/2009 |
| + | Sambucus ebulus | GB, VC24 Buckinghamshire, Olney | Adams | William Hillhouse | 25/8/1875 | BIRM | 18/2/2009 |
| + | Sambucus ebulus | GB, VC19 North Essex, Frinton | | Robert Large Baker | 6/1875 | BIRM | 19/2/2009 |
| + | Salvia verticillata | GB, VC34 West Gloucestershire, Kingswood | James Walter White | Flora of Bristol | 18/9/1889 | ABS | 21/1/2009 |
| + | Sagittaria sagittifolia | GB, VC36 Herefordshire, Sellack | Augustin Ley | Augustin Ley | 27/7/1887 | BIRM | 21/7/2009 |
| + | Sagina maritima | GB, VC14 East Sussex, Saint Leonard's | Frederick Townsend | William Hunt Painter | 14/11/1894 | ABS | 25/1/2009 |
| + | Rumex sanguineus | GB, VC43 Radnorshire, Llandrindod Wells | William Hunt Painter | | 12/7/1899 | ABS | 20/2/2009 |
| + | Rubia peregrina | GB, VC4 North Devon, Bideford | Rowena Mabel Ferguson | | 27/8/1938 | ABS | 8/3/2009 |
| + | Rubia peregrina | GB, VC49 Caernarvonshire, Great Orme's Head | George Stephen West
William West | George Stephen West
William West | 8/1888 | BIRM | 31/3/2009 |
| + | Rubia peregrina | GB, VC35 Monmouthshire, Wynd Cliff | Augustin Ley | | 5/7/1872 | BIRM | 3/4/2009 |
| + | Rosa tomentosa | GB, VC74 Wigtownshire, Whithorn | Charles Bailey | | 20/9/1889 | ABS | 25/1/2009 |
| + | Rosa canina | GB, VC36 Herefordshire, Kington | Jean Brooks | | 7/1961 | ABS | 26/1/2009 |
| + | Rosa canina | GB, VC4 North Devon, Heanton Punchardon | William Hunt Painter | | 7/1892 | ABS | 5/2/2009 |
| + | Rosa canina | GB, VC16 West Kent, Darenth Wood | Anthony Hurt Wolley Dod | | 18/6/1896 | ABS | 7/2/2009 |
| + | Rorippa amphibia | GB, VC36 Herefordshire, Mordiford | Augustin Ley | Augustin Ley | 19/9/1899 | BIRM | 20/3/2010 |
| + | Ribes alpinum | GB, VC62 North-east Yorkshire, Rievaulx | Douglas Montague Heath | Douglas Montague Heath | 16/5/1930 | BIRM | 19/3/2010 |
| + | Rhinanthus minor | GB, VC41,VC42, Coelbren | Lilian E Mumford | Lilian E Mumford | 27/7/1962 | ABS | 18/2/2009 |
| + | Rhinanthus minor subsp. borealis | GB, VC46 Cardiganshire, Rhos glandenys | Andrew David Quentin Agnew | | 11/6/1999 | ABS | 8/3/2009 |
| + | Rhinanthus minor subsp. stenophyllus | GB, VC64 Mid-west Yorkshire, Malham Tarn | James B Phipps | James B Phipps | 12/7/1954 | BIRM | 5/4/2009 |
| + | Reseda luteola | GB, VC58 Cheshire, New Brighton | John Barrow | Charles Bailey
John Barrow | 7/1868 | BIRM | 19/7/2009 |
| + | Reseda lutea | GB, VC14 East Sussex, Eastbourne | William Frederick Saunders | Muriel Saunders | 8/1852 | ABS | 7/3/2009 |
| + | Reseda lutea | DE, Rheinland-Pfalz, Koblenz | | Robert Coane Roberts Jordan | 19/8/1853 | BIRM | 7/4/2009 |
| + | Reseda lutea | GB, VC22 Berkshire, Wytham Hill | George Claridge Druce | Botanical Exchange Club of The British Isles
Augustin Ley
George Claridge Druce | 9/1906 | BIRM | 16/1/2010 |
| + | Ranunculus sardous | GB, VC36 Herefordshire, Cusop Dingle | William Moyle Rogers | Augustin Ley | 1/8/1898 | BIRM | 18/12/2009 |
| + | Ranunculus repens | GB, VC62 North-east Yorkshire, Ayton | William A Mudd | George Stephen West | 6/1852 | BIRM | 5/4/2009 |
| + | Ranunculus repens | | Mary Ann Brooks | Mary Ann Brooks | | BIRM | 7/4/2009 |
| + | Ranunculus parviflorus | GB, VC1 West Cornwall, Isles of Scilly,Tresco | D A J Little | | 6/1963 | ABS | 28/1/2009 |
| + | Ranunculus ficaria | GB, VC1 West Cornwall, Gulval | D A J Little | | 13/3/1947 | ABS | 6/2/2009 |
| + | Ranunculus bulbosus | GB, VC38 Warwickshire, Lapworth | D A Perks | | 20/8/1959 | ABS | 7/3/2009 |
| + | Ranunculus auricomus | GB, VC36 Herefordshire, Fawley Chapel | Augustin Ley | Augustin Ley | 23/4/1900 | BIRM | 4/8/2009 |
| + | Ranunculus aquatilis | GB, VC44,VC46, Lampeter | R D Lloyd | | 1/6/1909 | ABS | 18/2/2009 |
| + | Pyrola minor | GB, VC96 East Inverness-shire, Loch an Eilein | Augustin Ley | Augustin Ley | 9/7/1874 | BIRM | 20/3/2010 |
| + | Pyrola minor | CH, Valais, Zermatt | Augustin Ley | Augustin Ley | 12/7/1875 | BIRM | 20/3/2010 |
| + | Puccinellia distans | GB, VC37 Worcestershire, Droitwich | Joseph Hesselgrave Thompson | William Hunt Painter | 8/1850 | ABS | 8/3/2009 |
| + | Prunella vulgaris | GB, VC49 Caernarvonshire, Aberdaron | June Wilding | | 15/6/1961 | ABS | 7/2/2009 |
| + | Prunella vulgaris | GB, VC64 Mid-west Yorkshire, Ingleton | William West | George Stephen West
William West | 4/8/1890 | BIRM | 18/3/2010 |
| + | Primula scotica | GB, VC109 Caithness, Holborn Head | Francis Chalmers Crawford | Botanical Exchange Club of The British Isles
Augustin Ley
Francis Chalmers Crawford | 16/8/1907 | BIRM | 21/7/2009 |
| + | Primula elatior | GB, VC19 North Essex, Brockley Wood, Tindon End | Charles Bailey | Edward Cleminshaw | 4/1898 | BIRM | 9/4/2009 |
| + | Potentilla sterilis | GB, VC37 Worcestershire, Bewdley | Langley Kitching | Langley Kitching | 1/4/1898 | BIRM | 6/3/2009 |
| + | Potentilla reptans | GB, VC62 North-east Yorkshire, Marske | Charles Bailey | Charles Bailey | 17/7/1897 | BIRM | 31/3/2009 |
| + | Potentilla palustris | GB, VC38 Warwickshire, Sutton Park | Robert Coane Roberts Jordan | Robert Coane Roberts Jordan | 30/6/1852 | BIRM | 8/4/2009 |
| + | Potentilla palustris | GB, VC26 West Suffolk, Cavenham | William West | George Stephen West
William West | 8/5/1896 | BIRM | 11/4/2009 |
| + | Potentilla erecta | GB, VC46 Cardiganshire, Tregaron | Rand | | 1937 | ABS | 20/2/2009 |
| + | Potentilla erecta | GB, VC62 North-east Yorkshire, Newton | William A Mudd | George Stephen West | 8/1852 | BIRM | 10/4/2009 |
| + | Potentilla crantzii | GB, VC66 County Durham, Teesdale,Falcon Clints | William A Mudd | George Stephen West | 7/1853 | BIRM | 14/3/2009 |
| + | Potentilla argentea | GB, VC3 South Devon, King's Wood, Kingsteignton | Robert Coane Roberts Jordan | Robert Coane Roberts Jordan | 1843 | BIRM | 8/3/2009 |
| + | Potentilla anserina | GB, VC59 South Lancashire, Sefton Park | John William Burton | Charles Bailey
John Harbord Lewis | 8/8/1874 | BIRM | 21/2/2009 |
| + | Potentilla anserina | GB, VC62 North-east Yorkshire, Ayton | William A Mudd | George Stephen West | 7/1852 | BIRM | 9/4/2009 |
| + | Potentilla anglica | GB, VC3 South Devon, Trusham | William Moyle Rogers | William Moyle Rogers | 7/1877 | BIRM | 18/12/2009 |
| + | Potamogeton praelongus | GB, VC29 Cambridgeshire, Chesterton | Douglas Montague Heath | Douglas Montague Heath | 8/8/1934 | BIRM | 23/2/2010 |
| + | Potamogeton praelongus | GB, VC29 Cambridgeshire, Chesterton | Douglas Montague Heath | Douglas Montague Heath | 18/6/1935 | BIRM | 23/2/2010 |
| + | Potamogeton pectinatus | GB, VC17 Surrey, Guildford | William Hadden Beeby | Botanical Exchange Club of The British Isles
Augustin Ley | 6/8/1883 | BIRM | 31/7/2009 |
| + | Potamogeton pectinatus | GB, VC28 West Norfolk, Hunstanton | Walter Stiles | Walter Stiles | 8/8/1907 | BIRM | 9/3/2010 |
| + | Potamogeton compressus | GB, VC57 Derbyshire, Cromford | Augustin Ley | Augustin Ley | 8/7/1887 | BIRM | 12/3/2010 |
| + | Potamogeton compressus | GB, VC55 Leicestershire, Aylestone | Alex J Lockton | | 13/7/2002 | BIRM | 19/3/2010 |
| + | Polypogon monspeliensis | GB, VC18 South Essex, Canvey Island | Charles Smith Nicholson | Charles Smith Nicholson | 24/9/1910 | ABS | 21/2/2009 |
| + | Polygonatum multiflorum | GB, VC38 Warwickshire, Snitterfield | | Robert Large Baker | 27/5/1875 | BIRM | 10/3/2010 |
| + | Polygala vulgaris | GB, VC58 Cheshire, Wallasey | Henry (Harry) Searle
John Harbord Lewis | William Hunt Painter | 7/1879 | ABS | 4/2/2009 |
| + | Polygala vulgaris subsp. collina | GB, VC28 West Norfolk, Wells-on-Sea | Albert John Crosfield | Albert John Crosfield | 13/7/1920 | BIRM | 9/3/2010 |
| + | Polygala vulgaris | GB, VC35 Monmouthshire, Tintern
GB, VC35 Monmouthshire, Wynd Cliff | Augustin Ley | Augustin Ley | 14/6/1889 | BIRM | 21/3/2010 |
| + | Polygala serpyllifolia | GB, VC17 Surrey, Wimbledon Common | William West | William West | 3/5/1891 | BIRM | 7/4/2009 |
| + | Poa trivialis var. glabra | | Philip Frank Wareing | | | ABS | 11/2/2009 |
| + | Poa pratensis | GB, VC48 Merionethshire, Bala | Gwenda M Jones | | 9/1962 | ABS | 6/2/2009 |
| + | Poa pratensis | GB, VC29 Cambridgeshire, Isleham | Leslie John Audus | Leslie John Audus | 29/6/1934 | ABS | 11/2/2009 |
| + | Poa pratensis | GB, VC1 West Cornwall, Tresco | D A J Little | | 6/1963 | ABS | 11/2/2009 |
| + | Poa nemoralis | GB, VC5 South Somerset, Bossington | | Leslie John Audus | 6/1939 | ABS | 11/2/2009 |
| + | Poa nemoralis | GB, VC66 County Durham, Wynch Bridge | Douglas Montague Heath | Douglas Montague Heath | 30/6/1926 | BIRM | 14/3/2010 |
| + | Poa compressa | GB, VC17 Surrey, Coldharbour | Denis John Carr | | 7/1948 | ABS | 11/2/2009 |
| + | Poa compressa | GB, VC60 West Lancashire, Glasson Dock | James Alfred Wheldon | William Hunt Painter | 8/1900 | ABS | 11/2/2009 |
| + | Poa compressa | GB, VC59 South Lancashire, Walton | James Alfred Wheldon | William Hunt Painter | 7/1900 | ABS | 11/2/2009 |
| + | Poa angustifolia | GB, VC29 Cambridgeshire, Isleham | Fiona M Audus | | 13/7/1967 | ABS | 5/2/2009 |
| + | Plantago lanceolata | GB, VC38 Warwickshire, Arley | | George Stephen West | 15/9/1888 | BIRM | 19/3/2010 |
| + | Pimpinella saxifraga | GB, VC66 County Durham, Teesdale | Harold Stuart Thompson | Harold Stuart Thompson | 6/1903 | BIRM | 20/1/2009 |
| + | Pimpinella saxifraga | GB, VC17 Surrey, Betchworth Hills | D A J Little | | 3/8/1947 | ABS | 28/1/2009 |
| + | Pimpinella saxifraga | GB, VC17 Surrey, Betchworth Hills | D A J Little | | 10/8/1947 | ABS | 7/3/2009 |
| + | Pimpinella saxifraga | GB, VC49 Caernarvonshire, Capel Curig | Richard Henry Yapp | Richard Henry Yapp | 13/6/1906 | BIRM | 31/3/2009 |
| + | Pimpinella saxifraga | GB, VC36 Herefordshire, Saint Weonards | Augustin Ley | Augustin Ley | 23/5/1881 | BIRM | 5/5/2009 |
| + | Phyteuma orbiculare | GB, VC7 North Wiltshire, Roundway | Charles Bailey | Charles Bailey | 28/7/1893 | BIRM | 22/7/2009 |
| + | Phyteuma orbiculare | GB, VC17 Surrey, Hog's Back | William West | George Stephen West
William West | 26/7/1896 | BIRM | 12/3/2010 |
| + | Phragmites australis | GB, VC9 Dorset, Old Harry Rocks | Philip Scarborough King | Philip Scarborough King | 4/9/1883 | ABS | 21/2/2009 |
| + | Petroselinum segetum | GB, VC16 West Kent, Stone Marshes | Edward Charles Wallace | Harold Stuart Thompson | 27/7/1935 | BIRM | 21/7/2009 |
| + | Petrorhagia prolifera | GB, VC13 West Sussex, Pagham | Edward Shearburn Marshall | Botanical Exchange Club of The British Isles
Augustin Ley | 25/6/1901 | BIRM | 8/4/2009 |
| + | Petrorhagia prolifera | GB, VC13 West Sussex, Pagham | Douglas Montague Heath | Douglas Montague Heath | 13/7/1929 | BIRM | 11/4/2009 |
| + | Persicaria vivipara | GB, VC66 County Durham, Wynch Bridge | Thomas Gough | George Stephen West
William West | 16/7/1877 | BIRM | 2/3/2009 |
| + | Persicaria mitis | GB, VC17 Surrey, West Molesey | Hewett Cottrell Watson | George Stephen West | | BIRM | 3/4/2009 |
| + | Persicaria maculosa | GB, VC69 Westmorland, Barbon | William Hunt Painter | William Hunt Painter | 9/1862 | ABS | 22/1/2009 |
| + | Persicaria lapathifolia | | Mary Ann Brooks | | | BIRM | 29/6/2009 |
| + | Persicaria lapathifolia | GB, VC43 Radnorshire, Glasbury | Augustin Ley | Augustin Ley | 19/8/1885 | BIRM | 29/6/2009 |
| + | Persicaria hydropiper | GB, VC17 Surrey, Kingswood | Charles Edgar Salmon | Charles Edgar Salmon | 19/9/1904 | ABS | 20/1/2009 |
| + | Persicaria hydropiper | GB, VC17 Surrey, Kew | Walter Stiles | Walter Stiles | 20/8/1906 | BIRM | 9/3/2010 |
| + | Persicaria bistorta | GB, VC20 Hertfordshire | Mary Ann Brooks | | | BIRM | 3/4/2009 |
| + | Persicaria bistorta | GB, VC37 Worcestershire, Stoke Prior | Douglas Montague Heath | Douglas Montague Heath | 8/6/1906 | BIRM | 15/3/2010 |
| + | Pedicularis sylvatica | GB, Ambiguous locality (GB), Llantrisant | | | | ABS | 20/1/2009 |
| + | Pedicularis sylvatica | GB, VC57 Derbyshire, Coombs Resevoir, Buxton | Augustin Ley | Augustin Ley | 13/6/1870 | BIRM | 7/3/2009 |
| + | Pedicularis palustris | GB, VC62 North-east Yorkshire, Boltby | William Hillhouse | William Hillhouse | 7/1875 | BIRM | 7/4/2009 |
| + | Pedicularis palustris | GB, VC64 Mid-west Yorkshire, Ingleborough | George Stephen West | George Stephen West | 8/9/1907 | BIRM | 7/4/2009 |
| + | Pedicularis palustris | GB, VC38 Warwickshire, Sutton Park | George Stephen West | George Stephen West | 11/7/1907 | BIRM | 7/4/2009 |
| + | Pedicularis palustris | GB, VC28 West Norfolk, East Walton | Douglas Montague Heath | Douglas Montague Heath | 10/9/1917 | BIRM | 11/4/2009 |
| + | Parentucellia viscosa | GB, VC113 Channel Islands, Pont Harquet | Charles Bailey | | 8/7/1897 | ABS | 7/2/2009 |
| + | Parentucellia viscosa | GB, VC99 Dunbartonshire, Gare Loch | Charles Bailey | | 29/9/1897
1/10/1897 | ABS | 7/2/2009 |
| + | Parentucellia viscosa | GB, VC99 Dunbartonshire, Gareloch Head | Charles Bailey | | 1/10/1897 | ABS | 7/2/2009 |
| + | Parentucellia viscosa | GB, VC1 West Cornwall, Helston | James Cunnack | William Hillhouse | 7/1874 | BIRM | 5/4/2009 |
| + | Papaver rhoeas | GB, VC19 North Essex, Bush End | Douglas Montague Heath | Douglas Montague Heath | 15/6/1912 | BIRM | 5/4/2009 |
| + | Papaver rhoeas | GB, VC33,VC34, Amberley | Charles Bailey | Charles Bailey | 23/9/1907 | BIRM | 15/3/2010 |
| + | Oxytropis campestris | GB, VC90 Angus, Glen Fiadh,Clova [Glen Fee] | Edward Francis Linton
William Richardson Linton | Watson Botanical Exchange Club
William Hunt Painter
William Richardson Linton | 13/7/1889 | ABS | 20/2/2009 |
| + | Oxytropis campestris | GB, VC90 Angus, Clova,Glen Fee | Alexander Croall | George Stephen West
John Gilbert Baker | 7/1853 | BIRM | 11/4/2009 |
| + | Oxyria digyna | GB, VC96,VC97 | James Mitchell | Harold Stuart Thompson
Thomas Clark | 8/1848 | BIRM | 13/3/2010 |
| + | Oxalis acetosella | GB, VC64 Mid-west Yorkshire, Bardsey | Langley Kitching | | 6/1876 | BIRM | 5/4/2009 |
| + | Oxalis acetosella | GB, VC62 North-east Yorkshire, Ayton | William A Mudd | George Stephen West | 6/1852 | BIRM | 11/4/2009 |
| + | Oxalis acetosella | GB, VC30 Bedfordshire, Flitwick | Mary Ann Brooks | | | BIRM | 11/4/2009 |
| + | Orobanche hederae | GB, VC49 Caernarvonshire, Conway Castle | | George Stephen West | 8/1879 | BIRM | 11/4/2009 |
| + | Origanum vulgare | GB, VC15 East Kent, Folkestone Warren | Charles Bailey | Augustin Ley | 29/8/1878 | BIRM | 21/3/2010 |
| + | Orchis morio | GB, VC37 Worcestershire, Bewdley | Langley Kitching | Langley Kitching | 4/5/1898 | BIRM | 1/8/2009 |
| + | Ophrys insectifera | GB, VC16 West Kent, Cuxton | William West | George Stephen West
William West | 10/6/1895 | BIRM | 9/5/2009 |
| + | Ononis repens | GB, VC30 Bedfordshire, Barton | Dorcas Martha Higgins | Watson Botanical Exchange Club
Harold Stuart Thompson | 31/7/1899 | BIRM | 11/3/2009 |
| + | Onobrychis viciifolia | GB, VC33 East Gloucestershire, Birdlip | Augustin Ley | Augustin Ley | 23/8/1872 | BIRM | 8/5/2009 |
| + | Onobrychis viciifolia | | | Birmingham Natural History and Philosophical Society | | BIRM | 23/2/2010 |
| + | Onobrychis viciifolia | GB, VC37 Worcestershire, Trench Wood | | | 2/7/1862 | BIRM | 23/2/2010 |
| + | Onobrychis viciifolia | GB, VC30 Bedfordshire, Bedford | William Hillhouse | William Hillhouse | 23/6/1875 | BIRM | 23/2/2010 |
| + | Oenothera stricta | GB, VC6 North Somerset, Weston-super-Mare | James Walter White | William Hunt Painter | 7/1892 | ABS | 22/1/2009 |
| + | Oenothera erythrosepala | GB, VC38 Warwickshire, Alvecote Priory | George Albert Arnold
Maurice Arthur Arnold | Flora of Warwickshire Voucher Specimen | 14/7/1974 | BIRM | 4/6/2009 |
| + | Oenothera biennis | GB, VC59 South Lancashire, Crosby | John Harbord Lewis | Charles Bailey | 1879 | BIRM | 26/1/2009 |
| + | Oenothera biennis | GB, VC59 South Lancashire, Crosby | John Harbord Lewis | Charles Bailey | 17/9/1887 | BIRM | 26/1/2009 |
| + | Oenanthe pimpinelloides | GB, VC11 South Hampshire, Milford on Sea | James Cosmo Melvill | Botanical Exchange Club of The British Isles
William Hunt Painter | 7/1900 | ABS | 7/3/2009 |
| + | Oenanthe fistulosa | GB, VC36 Herefordshire, Moccas Park | Augustin Ley | Augustin Ley | 6/9/1872 | BIRM | 15/3/2010 |
| + | Oenanthe crocata | GB, VC17 Surrey, Kew | Harold Stuart Thompson | Harold Stuart Thompson | 6/1904
7/1904 | BIRM | 11/3/2010 |
| + | Odontites vernus subsp. serotinus | GB, VC58 Cheshire, Eastham Locks | James Alfred Wheldon | Botanical Exchange Club of The British Isles
Augustin Ley
James Alfred Wheldon | 17/8/1897 | BIRM | 18/2/2009 |
| + | Odontites vernus subsp. serotinus | GB, VC34 West Gloucestershire, Clifton Down | Harold Stuart Thompson | Harold Stuart Thompson | 27/8/1916 | BIRM | 3/4/2009 |
| + | Odontites vernus | GB, VC108 West Sutherland, Melness | William Andrew Shoolbred | Augustin Ley
William Andrew Shoolbred | 24/7/1897 | BIRM | 7/4/2009 |
| + | Odontites vernus subsp. serotinus | GB, VC17 Surrey, Kingswood | Walter Stiles | Walter Stiles | 30/8/1906 | BIRM | 15/3/2010 |
| + | Odontites vernus subsp. serotinus | GB, VC32 Northamptonshire, Geddington Chase | Augustin Ley | Augustin Ley | 1/8/1910 | BIRM | 16/3/2010 |
| + | Nuphar lutea | GB, VC5 South Somerset, Bridgwater | Harold Stuart Thompson | Harold Stuart Thompson | 24/6/1886 | BIRM | 7/3/2009 |
| + | Nepeta cataria | GB, VC19 North Essex, Hatfield Forest | Douglas Montague Heath | Douglas Montague Heath | 9/9/1912 | BIRM | 16/3/2010 |
| + | Nepeta cataria | GB, VC28 West Norfolk, Newton by Castle Acre | Douglas Montague Heath | Douglas Montague Heath | 18/9/1915 | BIRM | 16/3/2010 |
| + | Myrrhis odorata | GB, VC38 Warwickshire, Erdington | | Birmingham Natural History and Philosophical Society | | BIRM | 9/2/2010 |
| + | Myrrhis odorata | GB, VC36 Herefordshire, Birley | Augustin Ley | Augustin Ley | 2/6/1887 | BIRM | 13/2/2010 |
| + | Myrica gale | GB, VC6 North Somerset, Shapwick Moor | | Augustin Ley | 16/9/1910 | BIRM | 17/3/2010 |
| + | Myosotis scorpioides | GB, VC6 North Somerset, Keynsham | Harold Stuart Thompson | Harold Stuart Thompson | 13/6/1931 | BIRM | 19/2/2009 |
| + | Myosotis scorpioides | GB, VC5 South Somerset, Creech Saint Michael | Thomas Clark | Harold Stuart Thompson
Thomas Clark | 20/8/1827 | BIRM | 19/2/2009 |
| + | Myosotis laxa subsp. caespitosa | GB, VC38 Warwickshire, Honiley | | Robert Large Baker | 6/1872 | BIRM | 9/4/2009 |
| + | Myosotis discolor | GB, VC2 East Cornwall, Penlee Point | Augustin Ley | Augustin Ley | 19/5/1876 | BIRM | 7/4/2009 |
| + | Myosotis arvensis | GB, VC38 Warwickshire, Ufton Wood | Peter Shaw Green | Flora of Warwickshire Voucher Specimen | 10/6/1951 | BIRM | 19/2/2009 |
| + | Myosotis arvensis | GB, VC51 Flintshire, Dyserth | | | 1960 | ABS | 20/2/2009 |
| + | Myosotis arvensis | GB, VC64 Mid-west Yorkshire, Gearstones | Langley Kitching | | 21/6/1876 | BIRM | 1/4/2009 |
| + | Myosotis arvensis | GB, VC38 Warwickshire, Kenilworth Castle | Dorothy Adlington Cadbury | Flora of Warwickshire Voucher Specimen | 9/5/1951 | BIRM | 5/4/2009 |
| + | Myosotis arvensis | GB, VC62 North-east Yorkshire, Lanbraugh Rigg, Cleveland | William A Mudd | George Stephen West | 7/1853 | BIRM | 11/4/2009 |
| + | Myosotis alpestris | GB, VC88 Mid Perthshire, Ben Lawers | W Robinson | Alfred Rayney Waller
Harold Stuart Thompson | 7/1885 | BIRM | 11/4/2009 |
| + | Myosotis alpestris | GB, VC88 Mid Perthshire, Ben Lawers | W Robinson | Harold Stuart Thompson | 1885 | BIRM | 11/4/2009 |
| + | Myosotis alpestris | GB, VC88 Mid Perthshire, Ben Lawers | Edward Cleminshaw | Edward Cleminshaw
Harold Stuart Thompson | 8/1902 | BIRM | 11/4/2009 |
| + | Mycelis muralis | GB, VC69 Westmorland, Ambleside | Richard Henry Yapp | | 15/8/1898 | ABS | 21/2/2009 |
| + | Molinia caerulea | GB, VC69 Westmorland, Coniston | Philip Scarborough King | | 6/8/1884 | ABS | 28/1/2009 |
| + | Moenchia erecta | GB, VC46 Cardiganshire, Borth | Andrew David Quentin Agnew | | 9/5/1975 | ABS | 10/3/2009 |
| + | Minuartia verna | GB, VC1 West Cornwall, Lizard | Franklin T Richards | George Stephen West
William West | | BIRM | 12/2/2010 |
| + | Minuartia verna | GB, VC83 Midlothian, Arthur's Seat | Alexander Carroll Maingay | George Stephen West | 8/1856 | BIRM | 9/3/2010 |
| + | Mentha spicata | GB, VC1 West Cornwall, Newlyn, Penzance | William Curnow | William Hunt Painter | 9/1878 | ABS | 20/1/2009 |
| + | Mentha longifolia | GB, VC36 Herefordshire, Breinton | Augustin Ley | Augustin Ley | 8/5/1874 | BIRM | 26/1/2009 |
| + | Mentha aquatica | GB, VC18 South Essex, Abridge | Charles Smith Nicholson | Charles Smith Nicholson | 26/8/1899 | ABS | 6/3/2009 |
| + | Melilotus officinalis | GB, VC1 West Cornwall, Newquay | Chambre Corker Vigurs | Chambre Corker Vigurs | 14/7/1905 | ABS | 10/3/2009 |
| + | Melampyrum pratense | GB, VC17 Surrey, Tandridge | Charles Edward Britton | Botanical Society & Exchange Club of The British Isles
Charles Edward Britton
Harold Stuart Thompson | 2/8/1935 | BIRM | 20/2/2009 |
| + | Melampyrum pratense | GB, VC17 Surrey, Ottershaw | Charles Edward Britton | Botanical Exchange Club of The British Isles
Charles Edward Britton
Harold Stuart Thompson | 5/7/1931 | BIRM | 6/3/2009 |
| + | Medicago sativa | GB, VC29 Cambridgeshire, Hardwick | Rowena Mabel Ferguson | | 21/7/1933 | ABS | 22/1/2009 |
| + | Medicago sativa subsp. falcata | GB, VC26 West Suffolk, Mildenhall | Richard Henry Yapp | | 16/7/1903 | ABS | 20/2/2009 |
| + | Medicago sativa | GB, VC54 North Lincolnshire, Grimsby | Thomas Whitelegge | William Hunt Painter | 8/1877 | ABS | 21/2/2009 |
| + | Medicago sativa subsp. varia | GB, VC75 Ayrshire, Heads of Ayr | Arthur Bennett | Botanical Exchange Club of The British Isles
Alexander Somerville
Augustin Ley | 17/8/1898 | BIRM | 5/6/2009 |
| + | Matthiola incana | GB, VC10 Isle of Wight, Freshwater | Frederic Stratton | Frederic Stratton | 9/7/1877 | BIRM | 21/7/2009 |
| + | Marrubium vulgare | GB, North Wales | William West | George Stephen West | 8/1879 | BIRM | 11/4/2009 |
| + | Lythrum salicaria | GB, VC30 Bedfordshire, Flitwick | Mary Ann Brooks | | | BIRM | 10/4/2009 |
| + | Lysimachia vulgaris | GB, VC41 Glamorganshire, Kenfig Pool | Yvonne Evans | Yvonne Evans | 17/8/1961 | ABS | 4/2/2009 |
| + | Lysimachia nemorum | GB, VC63 South-west Yorkshire, Bingley | | George Stephen West | 5/1878 | BIRM | 12/3/2009 |
| + | Lysimachia nemorum | GB, VC62 North-east Yorkshire, Ayton | William A Mudd | George Stephen West | 7/1853 | BIRM | 5/4/2009 |
| + | Lysimachia nemorum | GB, VC55 Leicestershire, Oakley Wood, Long Whatton | Frederick Thompson Mott | Harold Stuart Thompson | 30/5/1898 | BIRM | 10/4/2009 |
| + | Lysimachia nemorum | GB, VC5,VC6 | Amy Jane Clark | Harold Stuart Thompson | 1856 | BIRM | 10/4/2009 |
| + | Lychnis flos-cuculi | GB, VC18,VC19, Epping | D A J Little | | 8/6/1947 | ABS | 23/1/2009 |
| + | Lychnis flos-cuculi | | | Charles Edgar Salmon
Francis Bossey | 1860 | ABS | 20/2/2009 |
| + | Lychnis flos-cuculi | GB, VC5 South Somerset, Quantock Hills | Thomas Clark | Harold Stuart Thompson
Thomas Clark | 29/6/1836 | BIRM | 5/4/2009 |
| + | Lotus corniculatus | GB, VC29 Cambridgeshire, Madingley | Richard Henry Yapp | | 14/6/1898 | ABS | 20/2/2009 |
| + | Lotus corniculatus | GB, VC41 Glamorganshire, Dinas Powis | Kath Baker | | 4/6/1972 | BIRM | 19/7/2009 |
| + | Lotus corniculatus | GB, VC6 North Somerset, Leigh Woods | Harold Stuart Thompson | Harold Stuart Thompson | 29/5/1920 | BIRM | 31/7/2009 |
| + | Lonicera periclymenum | GB, VC23,VC24, Thame | J Benjamin Stone | J Benjamin Stone | 7/1843 | BIRM | 2/3/2009 |
| + | Lolium perenne | GB, VC49 Caernarvonshire, Aberdaron | June Wilding | | 25/7/1961 | ABS | 23/1/2009 |
| + | Lolium perenne | GB, VC29 Cambridgeshire, Madingley | Rowena Mabel Ferguson | | 11/7/1934 | ABS | 13/2/2009 |
| + | Lolium perenne | GB, VC46 Cardiganshire, Cardigan Island | Andrew David Quentin Agnew | | 3/7/1999 | ABS | 13/2/2009 |
| + | Lolium perenne | GB, VC35 Monmouthshire, Usk | L H Davies | | 28/8/1961 | ABS | 13/2/2009 |
| + | Lolium multiflorum | GB, VC40 Shropshire, Yorton Heath | R Neil Jones | | 23/6/1961 | ABS | 13/2/2009 |
| + | Lolium multiflorum | GB, VC55 Leicestershire, Hinckley | Henry Peter Reader | William Hunt Painter | 7/1894 | ABS | 13/2/2009 |
