| + | Alchemilla glabra | GB, VC96 East Inverness-shire, Llairig Ghru | R Langton | | 9/7/1959 | BIRM | 24/10/2011 |
| + | Alchemilla glabra | GB, VC49 Caernarvonshire, Cwm-y-glo | David Guthrie Catcheside | | 30/8/1924 | SLBI | 13/5/2012 |
| + | Alchemilla glabra | GB, VC49 Caernarvonshire, Ceunant Mawr | Job Edward Lousley | Job Edward Lousley | 17/6/1931 | SLBI | 16/5/2012 |
| + | Alchemilla glabra | GB, VC39 Staffordshire, Endon | William Marsden Hind | | 5/6/1890 | SLBI | 3/8/2016 |
| + | Alchemilla glabra | GB, VC39 Staffordshire, Morridge Side | Albert Bruce Jackson
T E Routh | Watson Botanical Exchange Club
T E Routh
William Robert Sherrin | 23/6/1908 | SLBI | 9/9/2012 |
| + | Alchemilla glabra | GB, VC42 Breconshire, Penderyn | William Charles Richard Watson | William Charles Richard Watson | 16/6/1946 | SLBI | 12/11/2012 |
| + | Alchemilla glabra | GB, VC55 Leicestershire, Twycross | Andrew Bloxam | Allan Octavian Hume
Frederick Townsend | 5/1843 | SLBI | 14/1/2013 |
| + | Alchemilla glabra | GB, VC92 South Aberdeenshire, Loch Callater Lodge | Robert MacKechnie | Job Edward Lousley | 13/7/1932 | SLBI | 2/11/2012 |
| + | Alchemilla glabra | GB, VC49 Caernarvonshire, Twll Du | Job Edward Lousley | Job Edward Lousley | 20/6/1931 | SLBI | 12/6/2012 |
| + | Alchemilla glabra | GB, VC49 Caernarvonshire, Cwm Glas | Stafford Edwin Chandler | Croydon Natural History and Scientific Society
Stafford Edwin Chandler | 8/1905 | SLBI | 13/6/2012 |
| + | Alchemilla glabra | GB, VC49 Caernarvonshire, Penmaenmawr | Alfred Loydell | Alfred Loydell
William Robert Sherrin | 24/7/1907 | SLBI | 13/6/2012 |
| + | Alchemilla glabra | GB, VC49 Caernarvonshire, Twll Du | Job Edward Lousley | Job Edward Lousley | 20/6/1931 | SLBI | 17/6/2012 |
| + | Alchemilla glabra | GB, VC48 Merionethshire, Cader Idris | William Robert Sherrin | William Robert Sherrin | 30/7/1923 | SLBI | 17/6/2012 |
| + | Alchemilla glabra | GB, VC49 Caernarvonshire, Snowdon, Cwm Glas | Job Edward Lousley | Job Edward Lousley | 16/6/1931 | SLBI | 30/6/2012 |
| + | Alchemilla glabra | GB, VC49 Caernarvonshire, Cwm y glo | William Robert Sherrin | | 9/1924 | SLBI | 3/8/2016 |
| + | Alchemilla vulgaris | GB, VC48 Merionethshire, Dolgellau, Torrent Walk | Richard de Gylpyn Benson
Sawrey Brownlow Benson | Richard de Gylpyn Benson | 1893 | SHYB | 2/3/2015 |
| + | Alchemilla vulgaris | GB, VC49 Caernarvonshire, Bishop's Mill, Bangor | William Hunt Painter | William Hunt Painter | 13/8/1884 | ABS | 2/3/2015 |
| + | Alchemilla vulgaris | GB, VC49 Caernarvonshire, Llyn Idwal | William Hunt Painter | William Hunt Painter | 27/6/1889 | ABS | 2/3/2015 |
| + | Alchemilla vulgaris | GB, VC49 Caernarvonshire, Llyn Ogwen | William Hunt Painter | William Hunt Painter | 8/1879 | ABS | 2/3/2015 |
| + | Alchemilla vulgaris | GB, VC97 West Inverness-shire, Kiachnish Water | Douglas Montague Heath | Douglas Montague Heath | 17/7/1912 | BIRM | 2/3/2015 |
| + | Alchemilla vulgaris | GB, VC49 Caernarvonshire, Cwm Idwal | Douglas Montague Heath | Douglas Montague Heath | 23/7/1921 | BIRM | 2/3/2015 |
| + | Alchemilla vulgaris | GB, VC88 Mid Perthshire, Ben Lawers | Douglas Montague Heath | Douglas Montague Heath | 4/7/1926 | BIRM | 2/3/2015 |
| + | Alchemilla vulgaris | IE, VCH20 Co. Wicklow, Ballyman Glen | James Ponsonby Brunker | Albert Agricultural College, Glasnevin | 14/5/1930 | DBC | 13/8/2012 |
| + | Alchemilla vulgaris | GB, VC49 Caernarvonshire, Twll Du | | | 14/7/1897 | DBC | 2/3/2015 |
| + | Alchemilla vulgaris | GB, VC48 Merionethshire, Arthog | Randolph William Robbins | London Natural History Society
Randolph William Robbins | 6/1901 | SLBI | 18/6/2012 |
| + | Alchemilla vulgaris agg | GB, VC33 East Gloucestershire, Whitcomb | Gustavus A Ornano St Brody | British Botanical Competition | 4/1864 | GLR | 27/8/2012 |
| + | Alchemilla xanthochlora | GB, VC42 Breconshire, Craig y Rhiwarth | Augustin Ley | Augustin Ley | 10/7/1906 | BIRM | 23/9/2010 |
| + | Alchemilla xanthochlora | GB, VC48 Merionethshire, Dolgellau | William Charles Barton | Watson Botanical Exchange Club
Harold Stuart Thompson
William Charles Barton | 15/8/1923 | BIRM | 5/3/2010 |
| + | Alchemilla xanthochlora | GB, VC20 Hertfordshire, Hitchin Cultivated | Katherine D Little | Watson Botanical Exchange Club
Harold Stuart Thompson
Joseph Edward Little | 23/9/1929 | BIRM | 5/3/2010 |
| + | Alisma lanceolatum | GB, VC58 Cheshire, Raby | John Harbord Lewis | Charles Bailey
John Harbord Lewis | 7/8/1878 | MANCH | 26/5/2010 |
| + | Alisma plantago-aquatica | GB, VC52 Anglesey, Llyn Coron | Effie Moira Rosser | | 2/7/1953 | MANCH | 9/6/2016 |
| + | Alisma plantago-aquatica | GB, VC59 South Lancashire, Worsley | John Barrow | Charles Bailey
John Barrow | 11/8/1866 | MANCH | 9/1/2012 |
| + | Alisma plantago-aquatica | GB, VC58 Cheshire, Willaston (Wirral) | John Harbord Lewis | Charles Bailey | 26/8/1876 | MANCH | 26/5/2010 |
| + | Alisma plantago-aquatica | GB, VC49 Caernarvonshire, Menai Bridge | John Harbord Lewis | Charles Bailey | 25/7/1869 | MANCH | 11/2/2012 |
| + | Alisma plantago-aquatica | GB, VC63 South-west Yorkshire, Frizinghall | William West | George Stephen West
William West | 8/1876 | BIRM | 4/5/2011 |
| + | Alisma plantago-aquatica | GB, VC36 Herefordshire, Clifford, Leech Pool | Augustin Ley | Augustin Ley | 31/7/1884 | BIRM | 27/3/2010 |
| + | Alisma plantago-aquatica | GB, VC49 Caernarvonshire, Llyn Padarn | John Harbord Lewis | George Stephen West
John Harbord Lewis | 24/7/1875 | BIRM | 6/10/2010 |
| + | Alisma plantago-aquatica | GB, VC96 East Inverness-shire, Nairn | | | 4/8/1875 | DBC | 31/3/2011 |
| + | Alisma plantago-aquatica x ranunculoides | GB, VC52 Anglesey, Pentre Berw | Christian Maximilian Hugo Gluck | Edward Shearburn Marshall | 30/9/1912 | E | 19/4/2015 |
| + | Alliaria petiolata | GB, VC38 Warwickshire, Berkswell | | Birmingham Natural History and Philosophical Society | 19/5/1889 | BIRM | 3/6/2013 |
| + | Alliaria petiolata | GB, VC37 Worcestershire, Bromsgrove | Harold Stuart Thompson | Harold Stuart Thompson | 11/5/1901 | BIRM | 28/5/2011 |
| + | Alliaria petiolata | GB, VC36 Herefordshire, King's Caple | Augustin Ley | Augustin Ley | 15/6/1899 | BIRM | 19/5/2012 |
| + | Alliaria petiolata | GB, VC33 East Gloucestershire, Charlton Park | C E Robinson | C E Robinson | 25/5/1889 | SLBI | 22/2/2011 |
| + | Alliaria petiolata | GB, VC21 Middlesex, Chiswick, Duke's Meadows | Edward Benedict Bangerter | Edward Benedict Bangerter | 27/5/1939 | SLBI | 30/5/2011 |
| + | Alliaria petiolata | GB, VC21 Middlesex, West Ealing | William Robert Sherrin | William Robert Sherrin | 30/4/1899 | SLBI | 10/3/2011 |
| + | Alliaria petiolata | GB, VC17 Surrey, Sydenham Hill Station | Allan Octavian Hume | Allan Octavian Hume | 15/5/1900 | SLBI | 2/11/2012 |
| + | Alliaria petiolata | GB, VC21 Middlesex, Hendon | | | 5/1936 | SLBI | 19/7/2012 |
| + | Allium carinatum | GB, VC17 Surrey, Croydon Cultivated
GB, VC17 Surrey, Milford | Arthur Bennett | Augustin Ley | 7/1876 | BIRM | 5/7/2012 |
| + | Allium oleraceum | GB, VC29 Cambridgeshire, Hildersham | Anthony Wallis
Richard Henry Yapp | | 7/8/1901 | ABS | 14/10/2010 |
| + | Allium oleraceum | GB, VC29 Cambridgeshire, Shelford | Walter Stiles | Walter Stiles | 1/8/1909 | BIRM | 4/2/2010 |
| + | Allium oleraceum | GB, VC34 West Gloucestershire, Sea Mills | Augustin Ley | Augustin Ley | 9/5/1900 | BIRM | 23/4/2011 |
| + | Allium schoenoprasum | GB, VC42 Breconshire, Erwood | William Hunt Painter | William Hunt Painter | 12/7/1899 | SHYB | 21/11/2010 |
| + | Allium schoenoprasum | GB, VC44 Carmarthenshire, Carreg Cennen Cultivated | Augustin Ley | Augustin Ley | 20/6/1890 | BIRM | 24/3/2010 |
| + | Allium schoenoprasum | GB, VC1,VC2 | Charles Bailey | | 7/1866 | BON | 21/11/2010 |
| + | Allium schoenoprasum | GB, VC42 Breconshire, Erwood | Augustin Ley | Augustin Ley | 17/8/1885 | BIRM | 21/11/2010 |
| + | Allium schoenoprasum | GB, VC89 East Perthshire, Rait | J Knapp | | 1835 | BON | 13/1/2012 |
| + | Allium schoenoprasum | GB, VC42 Breconshire, Erwood | William Hunt Painter | Botanical Exchange Club of The British Isles
Augustin Ley
William Hunt Painter | 6/1900 | BIRM | 21/11/2010 |
| + | Allium schoenoprasum | GB, VC42 Breconshire, Erwood | Augustin Ley | Augustin Ley | 27/7/1883 | BIRM | 21/11/2010 |
| + | Allium schoenoprasum | GB, VC42 Breconshire, Erwood | Douglas Montague Heath | Douglas Montague Heath | 13/9/1934 | BIRM | 21/11/2010 |
| + | Allium scorodoprasum | GB, VC69 Westmorland, Ullswater | Herbert William Pugsley | Herbert William Pugsley | 1/8/1926 | SLBI | 25/2/2013 |
| + | Allium scorodoprasum | GB, VC49 Caernarvonshire, Bangor Cultivated
GB, VC77 Lanarkshire, Glasgow | John Edwards Griffith | Watson Botanical Exchange Club
William Robert Sherrin | 7/1917 | SLBI | 25/2/2013 |
| + | Allium triquetrum | GB, VC45 Pembrokeshire, Penally | John Wesley Carr | Watson Botanical Exchange Club
Harold Stuart Thompson
John Wesley Carr | 16/5/1932 | BIRM | 28/3/2011 |
| + | Allium triquetrum | GB, VC34 West Gloucestershire, Bristol Cultivated | Frederick Adolph Leipner | Harold Stuart Thompson | 5/1888 | BIRM | 27/3/2010 |
| + | Allium triquetrum | GB, VC113 Channel Islands, Guernsey | Cecil Victor Boley Marquand | Botanical Exchange Club of The British Isles
Douglas Montague Heath
Frederick Robinson | 4/1913 | BIRM | 30/9/2011 |
| + | Allium triquetrum | GB, VC113 Channel Islands, Guernsey | John Thomas Irvine Boswell-Syme | Botanical Society of London
Harold Stuart Thompson
Thomas Clark | 6/1853 | BIRM | 2/5/2010 |
| + | Allium triquetrum | GB, VC37 Worcestershire, Malvern Wells Cultivated | Richard Francis Towndrow | Harold Stuart Thompson
J A Melvin | 6/1930 | BIRM | 2/5/2010 |
| + | Allium ursinum | GB, VC18,VC19, Epping | D A J Little | | 18/5/1947 | ABS | 3/5/2012 |
| + | Allium ursinum | GB, VC62 North-east Yorkshire, Ashberry | Douglas Montague Heath | Douglas Montague Heath | 6/1908 | BIRM | 17/2/2011 |
| + | Allium ursinum | GB, VC10 Isle of Wight, Gatcombe Tolt | Douglas Montague Heath | Douglas Montague Heath | 6/7/1917 | BIRM | 17/2/2011 |
| + | Allium ursinum | GB, VC82 East Lothian, Gifford | Douglas Montague Heath | Douglas Montague Heath | 5/8/1927 | BIRM | 17/2/2011 |
| + | Allium ursinum | GB, VC3 South Devon, Stoke Wood | | Mantua And Montferrat | | BON | 20/9/2010 |
| + | Allium ursinum | GB, VC13 West Sussex, Funtington | | Mantua And Montferrat | | BON | 20/9/2010 |
| + | Allium ursinum | GB, VC15,VC16 | | Mantua And Montferrat | | BON | 20/9/2010 |
| + | Allium ursinum | GB, VC5,VC6 | | Mantua And Montferrat | | BON | 20/9/2010 |
| + | Allium ursinum | IE, VCH20 Co. Wicklow, Glen of the Downs | Robert Lloyd Praeger | Robert Lloyd Praeger | 17/5/1902 | DBC | 18/7/2012 |
| + | Allium vineale | GB, VC61,VC64, Selby | William West | Arthur Waters Preston | 9/1879 | ABS | 24/2/2011 |
| + | Allium vineale | GB, VC3 South Devon, Newton Abbot
GB, VC3 South Devon, Teignmouth | Edward Shearburn Marshall | Augustin Ley | 16/8/1909 | BIRM | 29/3/2016 |
| + | Allium vineale | GB, VC85 Fifeshire, Saint Davids | McTaggert Cowan | Botanical Exchange Club of The British Isles
Augustin Ley
McTaggert Cowan | 12/8/1910 | BIRM | 16/10/2010 |
| + | Allium vineale | GB, VC38 Warwickshire, Drayton | Henry Bromwich | Botanical Exchange Club of The British Isles
Augustin Ley | 8/1886 | BIRM | 15/1/2012 |
| + | Allium vineale | GB, VC38 Warwickshire, Harbury | | Robert Large Baker | 6/1873 | BIRM | 21/12/2011 |
| + | Allium vineale | GB, VC36 Herefordshire, Sellack, Pengethly | Augustin Ley | Augustin Ley | 11/7/1883 | BIRM | 23/10/2010 |
| + | Allium vineale | GB, VC17 Surrey, Betchworth | Ernest Stanley Salmon | Ernest Stanley Salmon
Harold Stuart Thompson | 6/1896 | BIRM | 28/4/2011 |
| + | Allium vineale | GB, VC6 North Somerset, Bristol, Clifton Suspension Bridge | Douglas Montague Heath | Douglas Montague Heath | 12/8/1926 | BIRM | 12/8/2012 |
| + | Allium vineale | GB, VC22,VC23, Remenham | Douglas Montague Heath | Douglas Montague Heath | 7/1929 | BIRM | 12/8/2012 |
| + | Allium vineale | GB, VC1 West Cornwall, Devoran | Allan Octavian Hume | Allan Octavian Hume | 23/6/1900 | SLBI | 7/2/2016 |
| + | Alnus cordata | GB, VC64 Mid-west Yorkshire, York, Holgate Cultivated | Harold Stuart Thompson | Harold Stuart Thompson | 3/1903 | BIRM | 8/1/2012 |
| + | Alnus incana | GB, VC38 Warwickshire, Edgbaston | C R Sladden | Flora of Warwickshire Voucher Specimen | 4/10/1973 | BIRM | 28/4/2012 |
| + | Alnus viridis | | | | | DBC | 2/10/2012 |
| + | Alopecurus aequalis | GB, VC28 West Norfolk, Scoulton Mere | Frederick Robinson | Douglas Montague Heath | 8/1915 | BIRM | 30/3/2011 |
| + | Alopecurus aequalis | GB, VC36 Herefordshire, Clifford, Leech Pool | Augustin Ley | Augustin Ley | 19/6/1902 | BIRM | 27/3/2010 |
| + | Alopecurus aequalis | GB, VC36 Herefordshire, Moccas Park | Augustin Ley | Augustin Ley | 17/8/1880 | BIRM | 15/1/2012 |
| + | Alopecurus aequalis | GB, VC36 Herefordshire, Clifford | Augustin Ley | Augustin Ley | 13/7/1887 | BIRM | 27/3/2010 |
| + | Alopecurus aequalis | GB, VC36 Herefordshire, Ashe | Augustin Ley | Augustin Ley | 28/7/1886 | BIRM | 27/3/2013 |
| + | Alopecurus aequalis | GB, VC40 Shropshire, Mere Pool | William Edmund Beckwith | Augustin Ley | 7/5/1887 | BIRM | 12/1/2010 |
| + | Alopecurus aequalis | GB, VC36 Herefordshire, Clifford, Leech Pool | Augustin Ley | Augustin Ley | 8/6/1885 | BIRM | 27/3/2010 |
| + | Alopecurus alpinus | GB, VC90 Angus, Glen Canness | Francis Buchanan White | Augustin Ley | 8/1871 | BIRM | 2/4/2012 |
| + | Alopecurus alpinus | GB, VC90 Angus, White Water | Francis Chalmers Crawford | Francis Chalmers Crawford
Harold Stuart Thompson | 15/7/1890 | BIRM | 22/9/2010 |
| + | Alopecurus alpinus | GB, VC90 Angus, Caenlochan Glen | Herbert William Pugsley | Harold Stuart Thompson | 23/7/1923 | BIRM | 22/9/2010 |
| + | Alopecurus bulbosus | GB, VC100 Clyde Islands, Lamlash | William Wilson | Mantua And Montferrat | | BON | 21/4/2011 |
| + | Alopecurus bulbosus | GB, VC59 South Lancashire, Warrington | William Wilson | Mantua And Montferrat | | BON | 21/4/2011 |
| + | Alopecurus bulbosus | GB, VC59 South Lancashire, Liverpool | W R C | Mantua And Montferrat | | BON | 21/4/2011 |
| + | Alopecurus bulbosus | GB, VC59 South Lancashire, Warrington,Fiddlers Ferry | | Mantua And Montferrat | | BON | 31/5/2010 |
| + | Alopecurus geniculatus | GB, VC5 South Somerset, Porlock marshes | Leslie John Audus | Leslie John Audus | 6/1939 | ABS | 20/8/2011 |
| + | Alopecurus geniculatus | GB, VC48 Merionethshire, Bala | Gwenda M Jones | | 9/1962 | ABS | 30/9/2014 |
| + | Alopecurus geniculatus | GB, VC23,VC24, Thame | J Benjamin Stone | J Benjamin Stone | 6/1843 | BIRM | 25/3/2010 |
| + | Alopecurus geniculatus | GB, VC15 East Kent, Deal | Langley Kitching | Langley Kitching | 11/6/1898 | BIRM | 14/11/2010 |
| + | Alopecurus geniculatus | | | A Choules
George Stephen West | | BIRM | 16/8/2010 |
| + | Alopecurus geniculatus | GB, VC36 Herefordshire, Clifford, Leech Pool | Augustin Ley | Augustin Ley | 19/6/1902 | BIRM | 27/3/2010 |
| + | Alopecurus geniculatus | GB, VC30 Bedfordshire, Fenlake | William Hillhouse | William Hillhouse | 17/6/1876 | BIRM | 25/4/2011 |
| + | Alopecurus geniculatus | GB, VC38 Warwickshire, Chesterton | | Robert Large Baker | 1872 | BIRM | 21/4/2011 |
| + | Alopecurus geniculatus | GB, VC71 Isle of Man, Port Erin | Herbert Mann Livens | | 6/1897 | BON | 26/5/2011 |
| + | Alopecurus geniculatus | GB, VC21 Middlesex, Finsbury Park | | | 6/1874 | DBC | 6/4/2011 |
| + | Alopecurus geniculatus | GB, VC21 Middlesex, Finsbury Park | | | 22/6/1877 | DBC | 22/7/2011 |
| + | Alopecurus myosuroides | GB, VC62 North-east Yorkshire, Ayton | William A Mudd | George Stephen West | 8/1851 | BIRM | 26/9/2012 |
| + | Alopecurus myosuroides | GB, VC21 Middlesex, Finsbury Park | | | 22/6/1877 | DBC | 22/7/2011 |
| + | Alopecurus pratensis | GB, VC23,VC24, Thame | | J Benjamin Stone | 7/1843 | BIRM | 23/2/2012 |
| + | Althaea officinalis | IE, VCH1 South Kerry, Dingle | Augustin Ley | Augustin Ley | 11/8/1887 | BIRM | 28/5/2011 |
| + | Althaea officinalis | GB, VC17 Surrey, Croydon, Mitcham Road | William Hadden Beeby | William Hadden Beeby | 17/8/1872 | SLBI | 10/5/2012 |
| + | Althaea officinalis | GB, VC25 East Suffolk, Saint Olaves | Hugh Neville Dixon | Hugh Neville Dixon
Leslie Beeching Hall | 8/1885 | SLBI | 28/9/2011 |
| + | Althaea officinalis | | Fletcher | C E Robinson | 1892 | SLBI | 23/10/2011 |
| + | Alyssum alyssoides | GB, VC36 Herefordshire, Marstow | Eleonora Armitage | Augustin Ley | 5/1888 | BIRM | 27/3/2013 |
| + | Alyssum alyssoides | GB, VC36 Herefordshire, Ross, Benhall | Augustin Ley | Augustin Ley | 4/8/1892 | BIRM | 27/3/2013 |
| + | Alyssum alyssoides | GB, VC17 Surrey, Kew Gardens | William West
William West | George Stephen West
William West | 27/5/1890 | BIRM | 9/1/2012 |
| + | Amaranthus blitum | GB, VC28 West Norfolk, Watton | Frederick Robinson | Douglas Montague Heath | 17/8/1914 | BIRM | 29/11/2010 |
| + | Amaranthus palmeri | USFL, Jackson County, Marianna Army Air Field | Loran C Anderson | Florida State University, Robert K. Godfrey Herbarium | 16/9/2013 | FSU | 29/3/2016 |
| + | Amaranthus retroflexus | GB, VC17 Surrey, Streatham | Harold Stuart Thompson | Harold Stuart Thompson | 8/1906 | BIRM | 18/2/2010 |
| + | Amaranthus retroflexus | GB, VC113 Channel Islands, Jersey | C J Tempere | George Stephen West | 8/1878 | BIRM | 5/3/2010 |
| + | Amaranthus retroflexus | GB, VC17 Surrey, Kew | William Hillhouse | | 7/9/1877 | BIRM | 28/4/2012 |
| + | Amaranthus retroflexus | GB, VC1 West Cornwall, Marazion Green | Augustin Ley | Augustin Ley | 25/9/1884 | BIRM | 7/10/2010 |
| + | Amaranthus retroflexus | GB, VC38 Warwickshire, Bodymoor Heath | Harold H Fowkes | Flora of Warwickshire Voucher Specimen | 9/1976 | BIRM | 22/9/2010 |
| + | Amaranthus retroflexus | GB, VC33 East Gloucestershire, Tewkesbury | Charles William Bannister | William Robert Price | 17/8/1947 | GLR | 8/4/2012 |
| + | Amaranthus retroflexus | GB, VC49 Caernarvonshire, Llandudno | Allan Octavian Hume | Allan Octavian Hume | 23/9/1905 | SLBI | 15/7/2013 |
| + | Amaranthus retroflexus | GB, VC49 Caernarvonshire, Llandudno | Allan Octavian Hume | Allan Octavian Hume | 17/9/1905 | SLBI | 5/8/2013 |
| + | Ambrosia artemisiifolia | GB, VC28 West Norfolk, Swaffham | Douglas Montague Heath | Douglas Montague Heath | 26/10/1916 | BIRM | 13/7/2010 |
| + | Ambrosia trifida | GB, VC16 West Kent, Bostall Heath | St John Marriott | | 8/1927 | SLBI | 11/1/2013 |
| + | Ammophila arenaria | GB, VC49 Caernarvonshire, Criccieth
GB, VC49 Caernarvonshire, Pwllheli | William Hunt Painter | | 3/7/1890
4/7/1890 | ABS | 17/2/2014 |
| + | Ammophila arenaria | GB, VC62 North-east Yorkshire, Redcar | James Abbot | George Stephen West
William West | 7/1878 | BIRM | 12/1/2010 |
| + | Ammophila arenaria | GB, VC48 Merionethshire, Tywyn | Augustin Ley | Augustin Ley | 14/6/1865 | BIRM | 13/1/2010 |
| + | Ammophila arenaria | GB, VC61 South-east Yorkshire, Spurn Point | Augustin Ley | Augustin Ley | 16/8/1881 | BIRM | 8/1/2011 |
| + | Ammophila arenaria | GB, VC19 North Essex, Stone Point | Frederick Yorke Brocas | Mantua And Montferrat | 8/1883 | BON | 2/1/2011 |
| + | Ammophila arenaria | GB, VC96 East Inverness-shire, Nairn | | | 6/8/1875 | DBC | 8/1/2012 |
| + | Amsinckia micrantha | GB, VC60 West Lancashire, Saint Anne's on the-Sea | Charles Bailey | Botanical Exchange Club of The British Isles
Augustin Ley | 20/7/1907 | BIRM | 7/10/2011 |
| + | Anacamptis pyramidalis | GB, VC10 Isle of Wight, Saint Boniface Down | Douglas Montague Heath | Douglas Montague Heath | 27/7/1916 | BIRM | 4/5/2010 |
| + | Anacamptis pyramidalis | GB, VC19 North Essex, Hatfield Forest | Douglas Montague Heath | Douglas Montague Heath | 7/1901 | BIRM | 4/5/2010 |
| + | Anacamptis pyramidalis | GB, VC36 Herefordshire, Stoke Lacy | Augustin Ley | Augustin Ley | 30/6/1887 | BIRM | 5/5/2010 |
| + | Anacamptis pyramidalis | GB, VC49 Caernarvonshire, Llandudno | | Robert Large Baker | 1865 | BIRM | 10/1/2012 |
| + | Anacamptis pyramidalis | GB, VC49 Caernarvonshire, Llandudno Junction | Augustin Ley | Augustin Ley | 21/6/1901 | BIRM | 28/9/2011 |
| + | Anacamptis pyramidalis | GB, VC49 Caernarvonshire, Great Orme | Augustin Ley | Augustin Ley | 21/6/1901 | BIRM | 28/9/2011 |
| + | Anacamptis pyramidalis | GB, VC46 Cardiganshire, Ynyslas | M Hildred Bigwood | | 7/1972 | ABS | 28/7/2012 |
| + | Anacamptis pyramidalis | GB, VC49 Caernarvonshire, Great Orme's Head | Philip Brookes Mason | Philip Brookes Mason | | BON | 5/1/2010 |
| + | Anagallis arvensis | GB, Ambiguous locality (GB), Broadwater | | | 10/1857 | ABS | 25/1/2010 |
| + | Anagallis arvensis | GB, VC9 Dorset, Weymouth | White | | 7/1865 | ABS | 25/1/2010 |
| + | Anagallis arvensis | GB, VC64 Mid-west Yorkshire, Thorp Arch | Langley Kitching | Langley Kitching | 29/6/1876 | BIRM | 4/4/2011 |
| + | Anagallis arvensis | GB, VC63 South-west Yorkshire, Greetland | William West | George Stephen West
William West | 8/9/1877 | BIRM | 28/7/2010 |
| + | Anagallis arvensis | GB, VC90 Angus | William Gardiner | Charles Cardale Babington
William Hillhouse | | BIRM | 6/2/2013 |
| + | Anagallis arvensis | GB, VC6 North Somerset, Wraxall | Ida Mary Roper | Watson Botanical Exchange Club
Harold Stuart Thompson
Ida Mary Roper | 11/11/1924 | BIRM | 25/1/2010 |
| + | Anagallis arvensis | GB, VC48 Merionethshire, Barmouth | William Charles Barton | Watson Botanical Exchange Club
Harold Stuart Thompson
William Charles Barton | 30/7/1915 | BIRM | 3/7/2010 |
| + | Anagallis arvensis | GB, VC64 Mid-west Yorkshire, Bardsey | Langley Kitching | Langley Kitching | 18/9/1876 | BIRM | 17/4/2010 |
| + | Anagallis arvensis | GB, VC35 Monmouthshire, Monmouth | Augustin Ley | Augustin Ley | 5/8/1909 | BIRM | 28/9/2012 |
| + | Anagallis arvensis | GB, VC52 Anglesey, Newborough Warren | Ida Mary Roper | Watson Botanical Exchange Club
Ida Mary Roper | 28/8/1931 | SLBI | 16/1/2013 |
| + | Anagallis arvensis | GB, VC48 Merionethshire, Barmouth | William Charles Barton | Watson Botanical Exchange Club
William Robert Sherrin | 30/7/1915 | SLBI | 20/9/2013 |
| + | Anagallis minima | GB, VC17 Surrey, Whitmoor Common | Douglas Montague Heath | Douglas Montague Heath | 31/8/1926 | BIRM | 8/8/2010 |
| + | Anagallis minima | GB, VC11 South Hampshire, Holmsley Station | Douglas Montague Heath | Douglas Montague Heath | 26/7/1920 | BIRM | 8/8/2010 |
| + | Anagallis minima | GB, VC11 South Hampshire, Holmsley Station | Douglas Montague Heath | Douglas Montague Heath | 22/7/1920 | BIRM | 8/8/2010 |
| + | Anagallis minima | GB, VC11 South Hampshire, Shedfield | Douglas Montague Heath | Douglas Montague Heath | 12/7/1918 | BIRM | 8/8/2010 |
| + | Anagallis minima | GB, VC52 Anglesey, Llyn Coron | Douglas Montague Heath
Frederick Robinson | Douglas Montague Heath | 19/7/1921 | BIRM | 8/8/2010 |
| + | Anagallis minima | GB, VC113 Channel Islands, Guernsey,L'Ancresse Common | Langley Kitching | Langley Kitching | 1/7/1898 to 6/7/1898 | BIRM | 19/5/2012 |
| + | Anagallis minima | GB, VC9 Dorset, Studland | Augustin Ley | Augustin Ley | 8/9/1892 | BIRM | 6/9/2010 |
| + | Anagallis minima | GB, VC60 West Lancashire, Arkholme | Albert Wilson | Botanical Exchange Club of The British Isles
Augustin Ley | 8/1900 | BIRM | 6/9/2010 |
| + | Anagallis tenella | GB, VC52 Anglesey, South Stack | William Hunt Painter | William Hunt Painter | 12/8/1881 | ABS | 16/12/2011 |
| + | Anagallis tenella | GB, VC49 Caernarvonshire, Bangor | George Hartley Bryan | Harold Stuart Thompson | | BIRM | 2/11/2010 |
| + | Anagallis tenella | GB, VC6 North Somerset, Black Down | Harold Stuart Thompson | Harold Stuart Thompson | 20/6/1915 | BIRM | 2/11/2010 |
| + | Anagallis tenella | GB, VC61 South-east Yorkshire, Tillmire | Harold Stuart Thompson | Harold Stuart Thompson | 8/8/1885 | BIRM | 2/11/2010 |
| + | Anagallis tenella | GB, VC6 North Somerset, Winscombe | Harold Stuart Thompson | Harold Stuart Thompson | 5/6/1915 | BIRM | 2/11/2010 |
| + | Anagallis tenella | GB, VC6 North Somerset, Ashcott | Harold Stuart Thompson | Harold Stuart Thompson | 1/7/1916 | BIRM | 20/9/2010 |
| + | Anagallis tenella | GB, VC34 West Gloucestershire, Hangerberry | Augustin Ley | Augustin Ley | 16/10/1873 | BIRM | 27/3/2013 |
| + | Anagallis tenella | GB, VC36 Herefordshire, Ross, Beechwood | Augustin Ley | Augustin Ley | | BIRM | 27/3/2013 |
| + | Anagallis tenella | GB, VC63 South-west Yorkshire, Rawcliffe | William West | George Stephen West | 6/8/1877 | BIRM | 2/11/2010 |
| + | Anagallis tenella | GB, VC52 Anglesey, Newborough Warren | William West | George Stephen West
William West | 1/8/1889 | BIRM | 2/11/2010 |
| + | Anagallis tenella | IE, VCH21 Co. Dublin, Rathfarnham | Robert Lloyd Praeger | Robert Lloyd Praeger | 8/1903 | DBC | 25/5/2011 |
| + | Anaphalis margaritacea | GB, VC42 Breconshire, Pontneddfechan | Thomas Barker | Thomas Barker | 9/1875 | MANCH | 23/2/2011 |
| + | Anaphalis margaritacea | GB, VC49 Caernarvonshire, Capel Curig | Thomas Radcliffe Comber | Augustin Ley
Thomas Radcliffe Comber | 8/1871 | BIRM | 21/10/2012 |
| + | Anchusa arvensis | GB, VC17 Surrey, Oxted | William Henry Griffin | Allan Octavian Hume | 1/9/1901 | SLBI | 11/5/2013 |
| + | Anchusa azurea | GB, VC41 Glamorganshire, Swansea, Singleton Park | H Williams | | 12/7/1958 | ABS | 24/5/2011 |
| + | Anchusa officinalis | GB, VC20 Hertfordshire, Ware Park | Douglas Montague Heath | Douglas Montague Heath | 7/8/1924 | BIRM | 22/9/2010 |
| + | Anchusa officinalis | GB, VC48 Merionethshire, Barmouth | William Charles Barton | Watson Botanical Exchange Club
Harold Stuart Thompson
William Charles Barton | 16/8/1915 | BIRM | 11/11/2011 |
| + | Anchusa officinalis | GB, VC36 Herefordshire, Ledbury | Spencer Henry Bickham | Watson Botanical Exchange Club
Harold Stuart Thompson
Spencer Henry Bickham | 19/6/1916 | BIRM | 11/11/2011 |
| + | Anchusa officinalis | GB, VC49 Caernarvonshire, Dwygyfylchi | William Barratt | Allan Octavian Hume | 28/6/1905 | SLBI | 3/2/2013 |
| + | Anchusa officinalis | GB, VC48 Merionethshire, Barmouth | Randolph William Robbins | London Natural History Society | 7/1899 | SLBI | 4/2/2013 |
| + | Anchusa officinalis | GB, VC49 Caernarvonshire, Dwygyfylchi | Allan Octavian Hume
William Barratt | Allan Octavian Hume | 28/6/1905 | SLBI | 5/2/2013 |
| + | Anchusa officinalis | GB, VC49 Caernarvonshire, Penmaenmawr | Allan Octavian Hume | Allan Octavian Hume | 28/6/1905 | SLBI | 11/3/2013 |
| + | Anemone apennina | GB, VC17 Surrey, Wimbledon Woods | W Walter | | | MANCH | 14/1/2010 |
| + | Anemone apennina | GB, VC36 Herefordshire, Ross, Beechwood Cultivated | Augustin Ley | Augustin Ley | 15/4/1871 | BIRM | 27/3/2013 |
| + | Anemone apennina | GB, VC6 North Somerset, Clifton, Bristol Cultivated
IT, Poretta | James Walter White | Botanical Exchange Club of The British Isles | 3/1920 | SLBI | 28/5/2011 |
| + | Anemone apennina | GB, VC17 Surrey, Mitcham | Job Edward Lousley | Job Edward Lousley | 4/1935 | SLBI | 28/5/2011 |
| + | Anemone nemorosa | GB, VC58 Cheshire, Bromborough | Henry Smith Fisher | Charles Bailey
John Harbord Lewis | 4/1872 | MANCH | 6/8/2010 |
| + | Anemone nemorosa | GB, VC59 South Lancashire, Speke | John William Burton | Charles Bailey
John Harbord Lewis
John William Burton | 22/4/1875 | MANCH | 27/6/2010 |
| + | Anemone nemorosa | GB, VC5 South Somerset, Wellington Monument | J S Sullivan | Manchester Museum Systematics Project (BS240) 1996 | 11/4/1996 | MANCH | 26/7/2010 |
| + | Anemone nemorosa | GB, VC58 Cheshire, Birkenhead,Claughton | John Harbord Lewis | Charles Bailey
John Harbord Lewis | 9/5/1873 | MANCH | 16/1/2011 |
| + | Anemone nemorosa | GB, VC51 Flintshire, Rhydymwyn | John Harbord Lewis | Charles Bailey
John Harbord Lewis | 1877 | MANCH | 13/2/2011 |
