| + | Acer campestre | GB, VC36 Herefordshire, Sellack | Augustin Ley | Augustin Ley | 13/8/1896 | BIRM | 18/11/2010 |
| + | Acer campestre | GB, VC36 Herefordshire, Warham | Augustin Ley | Augustin Ley | 16/9/1899 | BIRM | 18/11/2010 |
| + | Acer campestre | GB, VC32 Northamptonshire, Wadenhoe | | Augustin Ley | 26/7/1910 | BIRM | 18/11/2010 |
| + | Acer campestre | GB, VC33 East Gloucestershire, Kempsford | Walter Butt | | 18/7/1908 | GLR | 24/11/2010 |
| + | Acer campestre | GB, VC20 Hertfordshire, Saint Ippolyts | Joseph Edward Little | | 23/11/1922 | SLBI | 19/5/2013 |
| + | Achillea distans subsp. tanacetifolia | SI, Krain | | Freyer
Allan Octavian Hume
Frederick Townsend | | SLBI | 31/8/2013 |
| + | Achillea maritima | IE, VCH12 Co. Wexford, Rosslare | Cecil Prescott Hurst | Allan Octavian Hume | 10/10/1901 | SLBI | 22/11/2012 |
| + | Achillea millefolium | GB, VC34 West Gloucestershire, Kingswood | James Walter White | Botanical Exchange Club of The British Isles
Augustin Ley
James Walter White | 14/8/1888 | BIRM | 1/7/2010 |
| + | Achillea millefolium | GB, VC34 West Gloucestershire, Redland, Bristol | Harold Stuart Thompson | Harold Stuart Thompson | 7/1917 | BIRM | 13/7/2010 |
| + | Achillea millefolium | GB, VC5,VC6 | Thomas Clark | Harold Stuart Thompson
Thomas Clark | | BIRM | 16/7/2010 |
| + | Achillea millefolium | GB, VC5,VC6, Bridgwater | Harold Stuart Thompson | Harold Stuart Thompson | 3/8/1885 | BIRM | 16/7/2010 |
| + | Aconitum napellus | GB, VC33 East Gloucestershire, Hucclecote | | | 2/7/1915 | GLR | 6/10/2010 |
| + | Aconitum napellus | GB, VC1 West Cornwall, Pengreep | Frederick Hamilton Davey | Allan Octavian Hume | 23/7/1900 | SLBI | 5/2/2011 |
| + | Aconitum napellus | GB, VC41 Glamorganshire, Cardiff, Roath Park | Job Edward Lousley | Job Edward Lousley | 21/4/1935 | SLBI | 11/2/2011 |
| + | Aconitum napellus | GB, VC17 Surrey, Peper Harow | Edmund Browne Bishop | London Natural History Society
Edmund Browne Bishop | 5/7/1924 | SLBI | 12/2/2011 |
| + | Aconitum napellus | GB, VC41 Glamorganshire, Peterston-super-Ely | Edgar Philip Perman | Botanical Exchange Club of The British Isles
National Museum of Wales
Job Edward Lousley | 5/1939 | SLBI | 23/2/2011 |
| + | Aconitum napellus subsp. napellus | GB, VC5,VC6, Edford | Alfred Grenville Pugsley
Herbert William Pugsley | Watson Botanical Exchange Club
Herbert William Pugsley
Job Edward Lousley | 10/7/1927 | SLBI | 25/2/2011 |
| + | Acorus calamus | GB, VC17 Surrey, Frensham, Great Pond | Robert Hugh Bunting | William Robert Sherrin | 7/1906 to 8/1906 | SLBI | 24/2/2015 |
| + | Acorus calamus | GB, VC17 Surrey, Ham Common | | Croydon Natural History and Scientific Society | | SLBI | 26/2/2015 |
| + | Acorus calamus | GB, VC3 South Devon, Exeter | Gardner
Charles Baylis Green | Charles Baylis Green | 26/6/1917 | SLBI | 26/2/2015 |
| + | Acorus calamus | GB, VC6 North Somerset, Bath | | | 20/7/1898 | SLBI | 4/3/2015 |
| + | Acorus calamus | GB, VC21 Middlesex, Walton Bridge | Edward Charles Wallace | Watson Botanical Exchange Club
Edward Charles Wallace | 1/7/1928 | SLBI | 4/3/2015 |
| + | Acorus calamus | GB, VC22 Berkshire, Reading | | | | SLBI | 4/3/2015 |
| + | Actaea spicata | GB, VC62 North-east Yorkshire, Scarborough | | Harold Stuart Thompson
Thomas Clark | 7/1852 | BIRM | 18/11/2010 |
| + | Adoxa moschatellina | GB, VC16 West Kent, Cobham | | Edward Palmer
William Hadden Beeby | 5/1843 | SLBI | 23/10/2012 |
| + | Aegopodium podagraria | GB, VC30 Bedfordshire, Flitwick | Mary Ann Brooks | Mary Ann Brooks | | BIRM | 26/2/2010 |
| + | Aesculus hippocastanum | GB, VC19 North Essex, Hatfield Broad Oak | Douglas Montague Heath | Douglas Montague Heath | | BIRM | 27/5/2010 |
| + | Aethusa cynapium | GB, VC23,VC32, Aynho | George Claridge Druce | Botanical Exchange Club of The British Isles
Job Edward Lousley | 9/1929 | SLBI | 3/11/2012 |
| + | Aethusa cynapium | GB, VC22 Berkshire, Theale, Hosehill | Job Edward Lousley | Job Edward Lousley | 4/9/1923 | SLBI | 3/11/2012 |
| + | Agrimonia eupatoria | GB, VC36 Herefordshire, Coldborough Park | Augustin Ley | Augustin Ley | 15/9/1902 | BIRM | 5/11/2009 |
| + | Agrimonia eupatoria | IE, VCH17 North-east Galway, Briar Hill | | | 5/7/1981 | GALW | 12/12/2014 |
| + | Agrimonia procera | GB, VC6 North Somerset, Farrington Gurney | Harold Stuart Thompson | Harold Stuart Thompson | 24/7/1915 | BIRM | 6/4/2011 |
| + | Agrostemma githago | GB, VC20 Hertfordshire, Abbotsbury | | | 16/8/1888 | BIRM | 19/11/2010 |
| + | Agrostemma githago | GB, VC3 South Devon, Dartmoor | Allan Octavian Hume | Allan Octavian Hume | 25/7/1902 | SLBI | 8/8/2011 |
| + | Agrostemma githago | IE, VCH3 West Cork, Glandore | | | 1952 | GALW | 15/12/2014 |
| + | Agrostemma githago | GB, VC1 West Cornwall, Mullion | Harold Stuart Thompson | Harold Stuart Thompson | 26/7/1886 | BIRM | 3/9/2015 |
| + | Agrostis canina | GB, VC49 Caernarvonshire, Carnedd Dafydd | | Augustin Ley | 29/8/1887 | BIRM | 28/4/2009 |
| + | Agrostis canina | GB, VC57 Derbyshire, The Snake Inn, Derby | William Richardson Linton | Botanical Exchange Club of The British Isles
Augustin Ley | 11/7/1893 | BIRM | 21/9/2009 |
| + | Agrostis canina | | James Abbot | George Stephen West
William West | | BIRM | 15/10/2009 |
| + | Agrostis canina | GB, VC58 Cheshire, Fishpool | George Alfred Holt | Botanical Exchange Club of The British Isles
Augustin Ley
James Henry Augustus Steuart | 7/1892 | BIRM | 25/11/2009 |
| + | Agrostis canina | GB, VC38 Warwickshire, Balsall Common | Henry Bromwich | Botanical Exchange Club of The British Isles
Augustin Ley | 8/1894 | BIRM | 26/2/2010 |
| + | Agrostis canina | GB, VC1 West Cornwall, Ruan | Douglas Montague Heath | Douglas Montague Heath | 28/6/1927 | BIRM | 18/11/2010 |
| + | Agrostis capillaris | GB, VC63 South-west Yorkshire, Shipley | | George Stephen West | 1877 | BIRM | 17/12/2009 |
| + | Agrostis capillaris | GB, VC70 Cumberland, Scafell Pike | | Augustin Ley | 30/8/1871 | BIRM | 11/1/2010 |
| + | Agrostis capillaris | GB, VC38 Warwickshire, Berkswell | James Eustace Bagnall | Birmingham Natural History Society | 8/1893 | BIRM | 2/3/2010 |
| + | Agrostis curtisii | GB, VC2 East Cornwall, Pillaton | | Augustin Ley | 13/7/1888 | BIRM | 6/5/2009 |
| + | Agrostis curtisii | GB, VC5 South Somerset, Crowcombe | Harold Stuart Thompson | Harold Stuart Thompson | 15/8/1915 | BIRM | 14/4/2010 |
| + | Agrostis curtisii | GB, VC5 South Somerset, Porlock | Harold Stuart Thompson | Harold Stuart Thompson | 7/1922 | BIRM | 14/4/2010 |
| + | Agrostis gigantea | GB, VC34 West Gloucestershire, Redland, Bristol | Harold Stuart Thompson | Harold Stuart Thompson | 6/8/1916 | BIRM | 2/6/2009 |
| + | Agrostis stolonifera | GB, VC58 Cheshire, Wallasey | John William Burton | George Stephen West
John William Burton
William West | 6/7/1876 | BIRM | 14/5/2009 |
| + | Agrostis stolonifera | GB, VC6 North Somerset, Berrow | Augustin Ley | Augustin Ley | 9/9/1910 | BIRM | 17/11/2009 |
| + | Agrostis stolonifera | GB, VC5 South Somerset, Stert Island | Harold Stuart Thompson | Harold Stuart Thompson | | BIRM | 13/8/2013 |
| + | Agrostis tenuis | GB, VC30 Bedfordshire, Aspley Wood | William Hillhouse | William Hillhouse | 30/7/1876 | BIRM | 28/4/2009 |
| + | Agrostis tenuis | | James Eustace Bagnall | Birmingham Natural History Society | 8/1882 | BIRM | 13/5/2009 |
| + | Aira praecox | GB, VC28 West Norfolk, East Wretham | Frederick Robinson | Douglas Montague Heath | 1/6/1916 | BIRM | 27/4/2009 |
| + | Aira praecox | GB, VC28 West Norfolk, Swaffham Heath | | Douglas Montague Heath | 10/6/1916 | BIRM | 27/4/2009 |
| + | Aira praecox | GB, VC10 Isle of Wight, Sandown | | Douglas Montague Heath | 5/5/1916 | BIRM | 27/4/2009 |
| + | Aira praecox | GB, VC28 West Norfolk, Cockley Cley | | Douglas Montague Heath | 22/5/1916 | BIRM | 27/4/2009 |
| + | Aira praecox | GB, VC38 Warwickshire, Sutton Park | George Stephen West | George Stephen West | 12/6/1907 | BIRM | 8/2/2010 |
| + | Ajuga chamaepitys | GB, VC17 Surrey, Box Hill | William Henry Griffin | Allan Octavian Hume | 10/7/1904 | SLBI | 12/6/2013 |
| + | Ajuga chamaepitys | GB, VC17 Surrey, Addington, Croydon | | Henry Tuke Mennell | 9/1888 | SLBI | 18/6/2013 |
| + | Ajuga chamaepitys | GB, VC30,VC20, Tingley Wood | Joseph Edward Little | Watson Botanical Exchange Club | 7/1909
6/1929 | SLBI | 18/6/2013 |
| + | Ajuga chamaepitys | GB, VC20 Hertfordshire, Hitchin | | George Valentine Chapman Last | 2/9/1933 | K | 7/5/2014 |
| + | Ajuga chamaepitys | GB, VC8 South Wiltshire, Dauntsey School | Charles Edward Hubbard | | 31/7/1945 | K | 2/6/2014 |
| + | Ajuga chamaepitys | GB, VC28 West Norfolk, Wolferton | Kirby Trimmer | George Lloyd | 5/1837 | K | 26/6/2014 |
| + | Ajuga chamaepitys | GB, VC17 Surrey, Box Hill | William R Hayward | Lester Vallis Lester-Garland
William R Hayward | 8/1871 | K | 2/7/2014 |
| + | Ajuga pyramidalis | SE, Vestrogothise | Otto Nordstedt | Allan Octavian Hume
Henry & James Groves | 6/1883 | SLBI | 12/6/2013 |
| + | Ajuga pyramidalis | SE, Singö, Uppland | G A Ringselle | Job Edward Lousley | 5/7/1928 | SLBI | 13/6/2013 |
| + | Ajuga reptans | GB, VC62 North-east Yorkshire, Ayton | William A Mudd | George Stephen West | 8/5/1852 | BIRM | 7/5/2009 |
| + | Ajuga reptans | IE, Ambiguous locality (IE), Ballinakill | | | 5/1881 | DBC | 1/4/2011 |
| + | Ajuga reptans | GB, VC32 Northamptonshire, Yardley Chase | | Hugh Neville Dixon
Leslie Beeching Hall | 6/1889 | SLBI | 12/6/2013 |
| + | Ajuga reptans | GB, VC17 Surrey, Alfold | Edward Shearburn Marshall | | 12/5/1894 | SLBI | 12/6/2013 |
| + | Ajuga reptans | GB, VC16 West Kent, Crofton, Orpington | William Henry Griffin | Allan Octavian Hume | 27/5/1901 | SLBI | 12/6/2013 |
| + | Ajuga reptans | GB, VC2 East Cornwall, Golant, Penquite Wood | Allan Octavian Hume | Allan Octavian Hume | 16/5/1901 | SLBI | 13/6/2013 |
| + | Ajuga reptans | GB, VC14 East Sussex, Lewes | Joseph Woods | Frederick Townsend | 16/6/1852 | SLBI | 13/6/2013 |
| + | Ajuga reptans | GB, VC17 Surrey, Chilworth | Allan Octavian Hume | Allan Octavian Hume | 11/5/1904 | SLBI | 18/6/2013 |
| + | Ajuga reptans | GB, VC17 Surrey, Ottershaw | James Sykes Gamble | James Sykes Gamble | 5/1887 | K | 6/5/2014 |
| + | Ajuga reptans | GB, VC22 Berkshire, Wytham Woods | William Bertram Turrill | | 21/5/1928 | K | 19/5/2014 |
| + | Ajuga reptans | GB, VC3 South Devon, Sidmouth | J W Wyatt | | 26/4/1935 | K | 20/5/2014 |
| + | Ajuga reptans | GB, VC40 Shropshire, Easthope | Lester Vallis Lester-Garland | | 8/5/1912 | K | 20/5/2014 |
| + | Ajuga reptans | GB, VC22 Berkshire, Wytham Woods | William Bertram Turrill | | 21/5/1928 | K | 25/5/2014 |
| + | Ajuga reptans | GB, VC1 West Cornwall, Ruan Minor | | Clement Reid | 20/5/1907 | K | 2/7/2014 |
| + | Ajuga reptans | GB, VC17 Surrey, Merstham | J Fraser | J Fraser | 2/6/1888 | K | 5/7/2014 |
| + | Ajuga reptans | GB, VC6 North Somerset, Tickenham
GB, VC6 North Somerset, Wraxall | Cecil Ivry Sandwith | | 26/5/1930 | K | 5/7/2014 |
| + | Alchemilla glabra | GB, VC49 Caernarvonshire, Twll Du | Job Edward Lousley | Job Edward Lousley | 20/6/1931 | SLBI | 12/6/2012 |
| + | Alchemilla monticola | FI, Achturka | Isabella Metford | Harold Stuart Thompson | 8/1899 | BIRM | 1/5/2011 |
| + | Alisma lanceolatum | GB, VC17 Surrey, Woodside, Croydon | William Hadden Beeby | William Hadden Beeby | 28/8/1872 | SLBI | 11/3/2015 |
| + | Alisma lanceolatum | GB, VC14 East Sussex, Lewes | Joseph Woods | Allan Octavian Hume
Frederick Townsend | 21/7/1853 | SLBI | 13/3/2015 |
| + | Alisma lanceolatum | GB, VC17 Surrey, Woking | W Biddiscombe | Watson Botanical Exchange Club
W Biddiscombe | 8/1924 | SLBI | 13/3/2015 |
| + | Alisma lanceolatum | GB, VC17 Surrey, Hedge Court | William Hadden Beeby | William Hadden Beeby | 14/10/1883 | SLBI | 13/3/2015 |
| + | Alisma lanceolatum | GB, VC29 Cambridgeshire, Burwell Lode | Albert John Crosfield | Watson Botanical Exchange Club
Albert John Crosfield
William Robert Sherrin | 14/9/1909 | SLBI | 15/3/2015 |
| + | Alisma lanceolatum | GB, VC12 North Hampshire, Aldershot | William Hadden Beeby | William Hadden Beeby | 31/7/1881 | SLBI | 16/3/2015 |
| + | Alisma lanceolatum | GB, VC35 Monmouthshire, Llanfoist | Arthur Edward Wade | Dulwich College | 6/1923 | SLBI | 21/3/2015 |
| + | Alisma lanceolatum | GB, VC5 South Somerset, Lilstock | Edward Shearburn Marshall | | 25/6/1914 | E | 6/4/2015 |
| + | Alisma plantago-aquatica | GB, VC61 South-east Yorkshire, York | William Thompson (father of HST) | Harold Stuart Thompson | 1852 | BIRM | 9/4/2009 |
| + | Alisma plantago-aquatica | GB, VC36 Herefordshire, Clifford, Leech Pool | Augustin Ley | Augustin Ley | 31/7/1884 | BIRM | 7/5/2009 |
| + | Alisma plantago-aquatica | GB, VC38 Warwickshire, Earlswood Reservoir | Harold Stuart Thompson | Harold Stuart Thompson | 13/8/1893 | BIRM | 22/9/2009 |
| + | Alisma plantago-aquatica | GB, VC6 North Somerset, Blagdon Lake | Harold Stuart Thompson | Harold Stuart Thompson | 5/9/1933 | BIRM | 22/9/2009 |
| + | Alisma plantago-aquatica | GB, VC1 West Cornwall, Stithians | Frederick Hamilton Davey | Allan Octavian Hume | 24/8/1900 | SLBI | 9/3/2015 |
| + | Alisma plantago-aquatica | GB, VC1 West Cornwall, Lescudjack Moor | Richard Barker Ullman | Richard Barker Ullman | 14/8/1913 | SLBI | 9/3/2015 |
| + | Alisma plantago-aquatica | GB, VC17 Surrey, Weybridge | William Hadden Beeby | William Hadden Beeby | 1/7/1883 | SLBI | 9/3/2015 |
| + | Alisma plantago-aquatica | GB, VC33 East Gloucestershire, Coombe Hill | | C E Robinson | 8/1889 | SLBI | 10/3/2015 |
| + | Alisma plantago-aquatica | GB, VC14 East Sussex, Holtye | | Croydon Natural History and Scientific Society | 5/8/1895 | SLBI | 10/3/2015 |
| + | Alisma plantago-aquatica | GB, VC21 Middlesex, Harefield | | Croydon Natural History and Scientific Society | 1/6/1895 | SLBI | 10/3/2015 |
| + | Alisma plantago-aquatica | GB, VC17 Surrey, Croydon, Coombe Wood | | | 21/6/1875 | SLBI | 11/3/2015 |
| + | Alisma plantago-aquatica | GB, VC11 South Hampshire, Winchester, Winnal | | Croydon Natural History and Scientific Society
Robert Russell Hutchinson | 24/7/1835 | SLBI | 18/3/2015 |
| + | Alisma plantago-aquatica | GB, VC17 Surrey, Brockham | William Hadden Beeby | William Hadden Beeby | 22/7/1883 | SLBI | 19/3/2015 |
| + | Alisma plantago-aquatica | GB, VC6 North Somerset, Portbury | Harold Stuart Thompson | Watson Botanical Exchange Club
Harold Stuart Thompson | 6/5/1922 | SLBI | 19/3/2015 |
| + | Alisma plantago-aquatica | GB, VC14 East Sussex, Lewes | Joseph Woods | Frederick Townsend | 16/7/1852 | SLBI | 20/3/2015 |
| + | Alisma plantago-aquatica | GB, VC1 West Cornwall, Lescudjack Moor | Richard Barker Ullman | Richard Barker Ullman | | SLBI | 20/3/2015 |
| + | Alisma plantago-aquatica | GB, VC17 Surrey, Merton | Charles Avery | Charles Avery | 29/7/1958 | SLBI | 21/3/2015 |
| + | Alisma plantago-aquatica | GB, VC24 Buckinghamshire, Chenies | Edward Benedict Bangerter | Edward Benedict Bangerter | 8/8/1937 | SLBI | 21/3/2015 |
| + | Alisma plantago-aquatica | GB, VC21 Middlesex, Elstree | | | 6/1934 | SLBI | 21/3/2015 |
| + | Alisma plantago-aquatica | GB, VC16 West Kent, Ravensbourne | Allan Octavian Hume | Allan Octavian Hume | 20/8/1898 | SLBI | 23/3/2015 |
| + | Alisma plantago-aquatica | GB, VC3 South Devon, River Tavy | William Booth Waterfall | Royal Botanic Gardens, Kew
William Booth Waterfall | 22/7/1878 | E | 8/4/2015 |
| + | Alliaria petiolata | GB, VC36 Herefordshire, King's Caple | | Augustin Ley | 1/5/1899 | BIRM | 22/1/2010 |
| + | Alliaria petiolata | GB, VC16 West Kent, Tunbridge Wells | | Croydon Natural History and Scientific Society
Robert Russell Hutchinson | 20/5/1894
2/6/1894 | SLBI | 29/12/2010 |
| + | Alliaria petiolata | GB, VC17 Surrey, Sydenham Hill Station | Allan Octavian Hume | Allan Octavian Hume | 15/5/1900 | SLBI | 2/1/2011 |
| + | Alliaria petiolata | GB, VC17 Surrey, Morden | William Hadden Beeby | William Hadden Beeby | 12/4/1885 | SLBI | 23/4/2012 |
| + | Alliaria petiolata | GB, VC19 North Essex, Bush End | Douglas Montague Heath | Douglas Montague Heath | 8/1922 | BIRM | 20/7/2016 |
| + | Allium carinatum | GB, VC38 Warwickshire, Little Compton Cultivated | Douglas Montague Heath | Douglas Montague Heath | 26/6/1934 | BIRM | 28/11/2011 |
| + | Allium schoenoprasum | GB, VC27,VC28, Hargham Hall Cultivated | Hugh Reeve Beevor | Douglas Montague Heath
Frederick Robinson | 24/5/1914 | BIRM | 2/11/2009 |
| + | Allium scorodoprasum | GB, VC59 South Lancashire, Speke | John William Burton | John William Burton
Robert Large Baker | | BIRM | 8/2/2010 |
| + | Allium sphaerocephalon | GB, VC19 North Essex, Bush End Cultivated | Douglas Montague Heath | Douglas Montague Heath | 7/1927 | BIRM | 1/5/2011 |
| + | Allium triquetrum | GB, VC34 West Gloucestershire, Bristol Cultivated | Frederick Adolph Leipner | Harold Stuart Thompson | 5/1888 | BIRM | 1/10/2009 |
| + | Allium ursinum | GB, VC62 North-east Yorkshire, Ashberry | Douglas Montague Heath | Douglas Montague Heath | 6/1908 | BIRM | 21/10/2009 |
| + | Allium ursinum | GB, VC10 Isle of Wight, Gatcombe Tolt | Douglas Montague Heath | Douglas Montague Heath | 6/7/1917 | BIRM | 21/10/2009 |
| + | Allium ursinum | GB, VC82 East Lothian, Gifford | Douglas Montague Heath | Douglas Montague Heath | 5/8/1927 | BIRM | 21/10/2009 |
| + | Allium ursinum | GB, VC62 North-east Yorkshire, Castle Howard | | George Stephen West | 21/5/1910 | BIRM | 25/11/2009 |
| + | Allium ursinum | GB, VC6 North Somerset, Markham Bottom | Harold Stuart Thompson | Harold Stuart Thompson | 6/5/1922 | BIRM | 21/11/2010 |
| + | Allium ursinum | GB, VC17 Surrey, Norbury Park | William Hadden Beeby | William Hadden Beeby | | SLBI | 28/1/2013 |
| + | Allium vineale | GB, VC3 South Devon, Newton Abbot
GB, VC3 South Devon, Teignmouth | Edward Shearburn Marshall | Augustin Ley | 16/8/1909 | BIRM | 23/4/2009 |
| + | Allium vineale | GB, VC62 North-east Yorkshire, Lanbraugh Rigg, Cleveland | William A Mudd | George Stephen West | 9/1853 | BIRM | 6/5/2009 |
| + | Allium vineale | GB, VC17 Surrey, Reigate | | William Hadden Beeby | 15/7/1889 | SLBI | 29/1/2013 |
| + | Alopecurus aequalis | GB, VC17 Surrey, East Molesey | Hewett Cottrell Watson | Augustin Ley | 9/1868 | BIRM | 11/5/2009 |
| + | Alopecurus geniculatus | GB, VC15 East Kent, Deal | Langley Kitching | Langley Kitching | 11/6/1898 | BIRM | 12/10/2009 |
| + | Alopecurus geniculatus | | | A Choules
George Stephen West | | BIRM | 2/2/2010 |
| + | Alopecurus geniculatus | GB, VC30 Bedfordshire, Fenlake | William Hillhouse | William Hillhouse | 17/6/1876 | BIRM | 10/3/2010 |
| + | Alopecurus geniculatus | GB, VC85 Fifeshire, Freuchie | Douglas Montague Heath | Douglas Montague Heath | 17/6/1915 | BIRM | 2/12/2011 |
| + | Alopecurus myosuroides | GB, VC9 Dorset, Weymouth | William Hillhouse | William Hillhouse | 11/9/1879 | BIRM | 3/6/2009 |
| + | Alyssum alyssoides | GB, VC34 West Gloucestershire, Avonmouth | Francis Druce
Harold Stuart Thompson
Ida Mary Roper | Harold Stuart Thompson | 4/6/1930 | BIRM | 13/5/2010 |
| + | Amaranthus australis | USFL, Palm Beach County, Okeelanta | W G D'Arcy | | 9/8/1968 | FSU | 1/4/2015 |
| + | Amaranthus blitum | GB, VC37 Worcestershire, Charlton | Charles William Bannister | Wool Adventive Flora of Britian
Job Edward Lousley | 29/9/1959 | SLBI | 21/7/2013 |
| + | Amaranthus blitum | GB, VC14 East Sussex, Rottingdean | Thomas Hilton | Allan Octavian Hume | 10/1900 | SLBI | 21/7/2013 |
| + | Amaranthus blitum | GB, VC13 West Sussex, Southwick | Payne | Isaac A Helsby | 9/1934 | SLBI | 22/7/2013 |
| + | Amaranthus hybridus | USFL, Jackson County, Marianna | Loran C Anderson | | 16/9/2013 | FSU | 1/4/2015 |
| + | Amaranthus retroflexus | GB, VC16 West Kent, Barming | Cyril West | Job Edward Lousley | 9/1944 | SLBI | 22/7/2013 |
| + | Amaranthus retroflexus | GB, VC17 Surrey, Addiscombe | | Croydon Natural History and Scientific Society
Robert Russell Hutchinson | 7/1933 | SLBI | 16/8/2013 |
| + | Amaranthus retroflexus | GB, VC2 East Cornwall, Par | Frederick Hamilton Davey | Allan Octavian Hume | 16/8/1902 | SLBI | 17/8/2013 |
| + | Ammophila arenaria | GB, VC6 North Somerset, Burnham | Harold Stuart Thompson | Harold Stuart Thompson | 5/7/1886 | BIRM | 14/5/2009 |
| + | Ammophila arenaria | GB, VC28 West Norfolk, Burnham Overy | | Muriel Onslow | | BIRM | 12/10/2009 |
| + | Ammophila arenaria | GB, VC62 North-east Yorkshire, Redcar | William A Mudd | George Stephen West | 7/1851 | BIRM | 27/1/2010 |
| + | Anacamptis pyramidalis | GB, VC33 East Gloucestershire, Leckhampton | | C E Robinson | 4/7/1889 | SLBI | 24/1/2012 |
| + | Anagallis arvensis | GB, VC3 South Devon, Newton Poppleford | Susan Branford | | 8/1962 | BIRM | 11/4/2009 |
| + | Anagallis arvensis | GB, VC5 South Somerset, Stert Island | Harold Stuart Thompson | Harold Stuart Thompson | 13/8/1923 | BIRM | 6/4/2011 |
| + | Anagallis arvensis | GB, VC4 North Devon, Braunton Burrows | William Booth Waterfall | Harold Stuart Thompson | 9/1878 | BIRM | 6/4/2011 |
| + | Anagallis minima | GB, VC9 Dorset, Studland | Augustin Ley | Augustin Ley | 8/9/1892 | BIRM | 3/4/2009 |
| + | Anagallis minima | GB, VC60 West Lancashire, Arkholme | Albert Wilson | Botanical Exchange Club of The British Isles
Augustin Ley | 8/1900 | BIRM | 27/4/2009 |
| + | Anchusa officinalis | GB, VC41 Glamorganshire, Aberdare | Harry Joseph Riddelsdell | William Hunt Painter | 1901 | ABS | 30/3/2009 |
| + | Anemone nemorosa | GB, VC63 South-west Yorkshire, Shipley | William West | George Stephen West
William West | 4/1876 | BIRM | 29/9/2009 |
| + | Anemone nemorosa | GB, VC63 South-west Yorkshire, Shipley | William West | George Stephen West
William West | 5/1887 | BIRM | 29/10/2009 |
| + | Anemone nemorosa | GB, VC38 Warwickshire, Sutton Park | George Stephen West | George Stephen West | | BIRM | 30/11/2009 |
| + | Anemone nemorosa | GB, VC17 Surrey, Great Bookham
GB, VC17 Surrey, Westhumble | Walter Stiles | Walter Stiles | 4/1907 | BIRM | 10/2/2010 |
| + | Anemone nemorosa | GB, VC34 West Gloucestershire, Tutshill | | | 7/5/1909
5/1910 | GLR | 4/10/2010 |
| + | Anemone nemorosa | GB, VC17 Surrey, Crohamhurst | Henry Franklin Parsons | Croydon Natural History and Scientific Society | 4/1882 | SLBI | 25/1/2011 |
| + | Anemone nemorosa | GB, VC11 South Hampshire, Otterbourne | | Croydon Natural History and Scientific Society
J Breach
Robert Russell Hutchinson | 19/3/1834 | SLBI | 21/2/2011 |
| + | Anemone nemorosa | GB, VC17 Surrey, Capel | Job Edward Lousley | Job Edward Lousley | 14/4/1933 | SLBI | 25/2/2011 |
| + | Anemone nemorosa | GB, VC17 Surrey, Croydon, Croham Hurst | William Hadden Beeby | | 1866 | SLBI | 18/3/2011 |
| + | Anemone nemorosa | GB, VC33 East Gloucestershire, Andoversford | C E Robinson | C E Robinson | 12/5/1890 | SLBI | 25/3/2011 |
| + | Anemone nemorosa | GB, VC17 Surrey, Croydon, Croham Hurst | | Croydon Natural History and Scientific Society
Henry Franklin Parsons | 4/1882 | SLBI | 6/12/2012 |
| + | Anemone nemorosa | GB, VC34 West Gloucestershire, Hanging Hill | Harold Stuart Thompson
Herbert William Pugsley | Harold Stuart Thompson | 24/4/1923 | BIRM | 25/12/2015 |
| + | Anemone ranunculoides | | | Allan Octavian Hume | | SLBI | 10/2/2011 |
| + | Anemone ranunculoides | HE, Darmstadt | Girtz | Job Edward Lousley | 21/4/1915 | SLBI | 6/3/2011 |
| + | Angelica archangelica | IE, VCH39 Co. Antrim, Ballintoy
IE, VCH39 Co. Antrim, Carrickarade Island | Charles Bailey | Botanical Exchange Club of The British Isles
Charles Bailey | 11/7/1896 | BIRM | 11/2/2010 |
| + | Angelica archangelica | GB, VC6 North Somerset, Clifton, Bristol Cultivated | James Walter White | Augustin Ley | 7/1892 | BIRM | 30/4/2010 |
| + | Angelica archangelica | GB, VC34 West Gloucestershire, Bristol Cultivated | James Walter White | Augustin Ley | 7/1909 | BIRM | 30/4/2010 |
| + | Angelica sylvestris | GB, VC3 South Devon, Lympstone | Robert Coane Roberts Jordan | Robert Coane Roberts Jordan | 1846 | BIRM | 15/10/2009 |
| + | Anisantha diandra | GB, VC113 Channel Islands, Jersey, Quennevais | David Thomson Playfair | Watson Botanical Exchange Club
David Thomson Playfair | 26/5/1897 | BIRM | 11/3/2010 |
| + | Anisantha madritensis | GB, VC41 Glamorganshire, Caswell Bay | Esther Hopkins | Augustin Ley
Esther Hopkins | 7/1869 | BIRM | 23/4/2009 |
| + | Anisantha madritensis | GB, VC6 North Somerset, Saint Vincent's Rocks | Thomas Bruges Flower | London Botanical Exchange Club
Robert Large Baker
Thomas Bruges Flower | 6/1876 | BIRM | 15/3/2010 |
| + | Anisantha sterilis | GB, VC16 West Kent, Ightham | | Langley Kitching | 24/5/1898 | BIRM | 21/1/2010 |
| + | Anisantha tectorum | GB, VC36 Herefordshire, Ross | Augustin Ley | Augustin Ley | 31/5/1897 | BIRM | 11/11/2009 |
| + | Antennaria dioica | GB, VC97 West Inverness-shire, Moidart | William West | George Stephen West | 8/1907 | BIRM | 14/6/2010 |
| + | Antennaria dioica | GB, VC64 Mid-west Yorkshire, Gordale | William West | George Stephen West
William West | 6/1890 | BIRM | 25/6/2010 |
| + | Antennaria dioica | GB, VC64 Mid-west Yorkshire, Ingleborough | | Langley Kitching | 22/6/1876 | BIRM | 25/6/2010 |
| + | Antennaria dioica | GB, VC70 Cumberland, Westward | | | 1866 | MANCH | 3/9/2015 |
| + | Anthemis arvensis | GB, VC29 Cambridgeshire, Great Wilbraham | William West | George Stephen West | 6/6/1895 | BIRM | 15/6/2010 |
| + | Anthemis tinctoria | GB, VC3 South Devon, Torquay | Frederick Robinson | Douglas Montague Heath | 6/1915 | BIRM | 25/6/2010 |
| + | Anthoxanthum aristatum subsp. puelii | GB, VC6,VC34, Bristol | Harold Stuart Thompson | Harold Stuart Thompson | 5/1888 to 6/1888 | BIRM | 7/5/2009 |
| + | Anthoxanthum odoratum | GB, VC36 Herefordshire, Sellack | | Augustin Ley | 1866 | BIRM | 14/5/2009 |
| + | Anthoxanthum odoratum | GB, VC36 Herefordshire, Hope Mansell | Augustin Ley | Augustin Ley | 20/5/1908 | BIRM | 21/10/2009 |
| + | Anthriscus caucalis | GB, VC32 Northamptonshire, Kings Sutton | | Robert Large Baker | 5/1874 | BIRM | 7/11/2011 |
| + | Anthriscus caucalis | GB, VC17 Surrey, Frensham | William Hadden Beeby | William Hadden Beeby | 7/5/1882 | SLBI | 30/3/2013 |
| + | Anthriscus sylvestris | IE, VCH28 Co. Sligo, Benbulbin | Micheline Joan Sheehy Skeffington | | 10/6/1981 | GALW | 25/12/2014 |
| + | Anthriscus sylvestris | IE, VCH21 Co. Dublin, Finglas | | | 10/5/1905 | GALW | 28/12/2014 |
| + | Anthyllis vulneraria | GB, VC22 Berkshire, Moulsford | Harry Baker | Birmingham Natural History and Philosophical Society | | BIRM | 11/4/2009 |
| + | Anthyllis vulneraria subsp. vulneraria var. coccinea | GB, VC1 West Cornwall, Pentire | Henry Elliott Fox | Watson Botanical Exchange Club
Harold Stuart Thompson | 8/1910 | BIRM | 11/4/2009 |
| + | Anthyllis vulneraria subsp. vulneraria var. coccinea | GB, VC1 West Cornwall, Newquay | Alfred Loydell | Watson Botanical Exchange Club
Harold Stuart Thompson | 23/6/1903 | BIRM | 27/4/2009 |
| + | Antirrhinum majus | GB, VC17 Surrey, Guildford | Powell | | 12/1930 | K | 6/4/2014 |
| + | Aphanes arvensis | GB, VC59 South Lancashire, Whitefield | John Just | Charles Bailey
John Hardy | 5/1842 | BIRM | 19/10/2009 |
