| + | Acer campestre var. leiocarpum | GB, VC38 Warwickshire, Myton | | Robert Large Baker | 5/1874 | BIRM | 13/4/2009 |
| + | Acer campestre var. leiocarpum | GB, VC63,VC64, Shipley | William West | George Stephen West
William West | 9/1877 | BIRM | 13/4/2009 |
| + | Acer campestre | GB, VC33 East Gloucestershire, Cranham | | | 21/6/1912 | GLR | 22/11/2010 |
| + | Acer campestre | GB, VC33 East Gloucestershire, Gloucester | Frederick E Sessions | Frederick E Sessions | | GLR | 23/11/2010 |
| + | Acer campestre | GB, VC33 East Gloucestershire, Gloucester | Frederick E Sessions | Gloucester School of Science Philosophical Society
Frederick E Sessions | | GLR | 23/11/2010 |
| + | Acer campestre | GB, VC34 West Gloucestershire, Flaxley | Gustavus A Ornano St Brody | British Botanical Competition | 5/1864 | GLR | 24/11/2010 |
| + | Acer campestre | GB, VC34 West Gloucestershire, Longney | William Robert Price | William Robert Price | 9/1905 | GLR | 26/11/2010 |
| + | Acer campestre | | | John Wilton Haines | 4/5/1916 | GLR | 27/11/2010 |
| + | Acer pseudoplatanus | GB, VC58 Cheshire, Davenport | | | 6/6/1877 | BON | 5/7/2010 |
| + | Acer pseudoplatanus | GB, VC19 North Essex, Walton-on-the-Naze | Frederick Yorke Brocas | Charles Ottley Groom | 8/1882 | BON | 5/7/2010 |
| + | Acer pseudoplatanus | GB, VC76,VC77, Glasgow | Philip Brookes Mason | Philip Brookes Mason | | BON | 5/7/2010 |
| + | Acer pseudoplatanus | GB, VC37 Worcestershire, Broadway | John Wilton Haines | John Wilton Haines | 4/1914 | GLR | 23/11/2010 |
| + | Acer pseudoplatanus | GB, VC34 West Gloucestershire, Tidenham | Walter Butt | | 5/1912 | GLR | 28/11/2010 |
| + | Acer pseudoplatanus | GB, VC33 East Gloucestershire, Cowley | William Robert Price | William Robert Price | | GLR | 1/12/2010 |
| + | Acer pseudoplatanus | GB, VC33 East Gloucestershire, Gloucester | | British Botanical Competition | 5/1864 | GLR | 1/12/2010 |
| + | Aceras anthropophorum | GB, VC25 East Suffolk, Bungay | Daniel Stock | Botanical Society of London
Charles Ottley Groom | 1841 | BON | 19/11/2009 |
| + | Aceras anthropophorum | GB, VC17 Surrey, Betchworth Hills | Robert Braithwaite | Charles Ottley Groom | 5/1850 | BON | 18/11/2010 |
| + | Aceras anthropophorum | GB, VC17 Surrey, Buckland Hills | John Linnell | Charles Ottley Groom | 6/1858 | BON | 18/11/2010 |
| + | Achillea millefolium | GB, VC63 South-west Yorkshire, Bradford | William West | George Stephen West | 7/1880 | BIRM | 1/7/2010 |
| + | Achillea millefolium | GB, VC79 Selkirkshire, Galashiels | Andrew Brotherston | George Stephen West
John Harbord Lewis | 7/1874 | BIRM | 1/7/2010 |
| + | Achillea millefolium | GB, VC17 Surrey, Kew Cultivated | John Gilbert Baker | Botanical Exchange Club of The British Isles
London Botanical Exchange Club
Robert Large Baker | 8/1880 | BIRM | 4/7/2010 |
| + | Aconitum napellus | GB, VC34 West Gloucestershire | William Robert Price | William Robert Price | 30/6/1907 | GLR | 27/9/2010 |
| + | Aconitum napellus | GB, VC33 East Gloucestershire, Hucclecote | | British Botanical Competition | 6/1864 | GLR | 28/9/2010 |
| + | Actaea spicata | GB, VC38 Warwickshire, Little Compton Cultivated | Douglas Montague Heath | Douglas Montague Heath | 16/7/1948 | BIRM | 27/3/2010 |
| + | Adoxa moschatellina | GB, VC37 Worcestershire, Rubery | Harold Stuart Thompson | Harold Stuart Thompson | 27/4/1901 | BIRM | 11/4/2009 |
| + | Adoxa moschatellina | GB, VC6 North Somerset, Winterhead | Harold Stuart Thompson | Harold Stuart Thompson | 4/1932 | BIRM | 11/4/2009 |
| + | Adoxa moschatellina | GB, VC17 Surrey, Gatton | | Harold Stuart Thompson | 22/4/1934 | BIRM | 11/4/2009 |
| + | Aegopodium podagraria | GB, Ambiguous locality (GB), Grange | William West | George Stephen West
William West | 7/1909 | BIRM | 3/5/2009 |
| + | Aegopodium podagraria | GB, VC64 Mid-west Yorkshire, Thorp Arch | Langley Kitching | Langley Kitching | 29/6/1876 | BIRM | 1/8/2009 |
| + | Aegopodium podagraria | GB, VC36 Herefordshire, Sellack | Augustin Ley | Augustin Ley | 29/3/1904 | BIRM | 20/3/2010 |
| + | Aesculus hippocastanum | GB, VC17 Surrey, Merstham | Edward Charles Wallace | Edward Charles Wallace
Harold Stuart Thompson | 19/5/1934 | BIRM | 27/5/2010 |
| + | Aesculus hippocastanum | GB, VC34 West Gloucestershire, Lancaut | Walter Butt | | 1912 | GLR | 1/12/2010 |
| + | Aethusa cynapium | GB, VC72 Dumfriesshire, Wamphray Water | Charles Bailey | Charles Bailey | 26/9/1898 | BIRM | 2/6/2009 |
| + | Aethusa cynapium | GB, VC34 West Gloucestershire, Bristol, Redlands | Harold Stuart Thompson | Harold Stuart Thompson | 9/1931 | BIRM | 7/7/2009 |
| + | Aethusa cynapium | GB, VC38 Warwickshire, Little Compton Cultivated | Douglas Montague Heath | Douglas Montague Heath | 28/8/1948 | BIRM | 13/2/2010 |
| + | Aethusa cynapium | GB, VC23 Oxfordshire, Marston | George Claridge Druce | Botanical Exchange Club of The British Isles
Augustin Ley
George Claridge Druce | 9/1884 | BIRM | 26/2/2010 |
| + | Aethusa cynapium | GB, VC3 South Devon, Teignmouth | Charles James Rufus Jordan | Robert Coane Roberts Jordan | 7/1850 | BIRM | 1/4/2010 |
| + | Aethusa cynapium | GB, VC63 South-west Yorkshire, Shipley | William West | George Stephen West
William West | 7/1877 | BIRM | 26/4/2010 |
| + | Aethusa cynapium | GB, VC27 East Norfolk, Horning | Richard Charles L'Estrange Burges | | 27/8/1939 | BIRM | 2/8/2011 |
| + | Agrimonia procera | GB, VC36 Herefordshire, Michaelchurch Escley | Augustin Ley | Augustin Ley | 14/9/1893 | BIRM | 3/4/2009 |
| + | Agrimonia procera | GB, VC36 Herefordshire, Aymestrey | | Augustin Ley | 9/8/1871 | BIRM | 11/4/2009 |
| + | Agrimonia procera | GB, VC40 Shropshire, Coxall Knoll | | Augustin Ley | 2/9/1886 | BIRM | 12/4/2009 |
| + | Agrimonia procera | GB, VC42 Breconshire, Aberclydach | Augustin Ley | Augustin Ley | 30/7/1900 | BIRM | 26/4/2009 |
| + | Agrimonia procera | GB, VC36 Herefordshire, Shobdon, Lady Pool | Augustin Ley | Augustin Ley | 31/7/1893 | BIRM | 17/7/2009 |
| + | Agrostemma githago | GB, VC34 West Gloucestershire, Tidenham | William Robert Price | William Robert Price | 1896 | GLR | 24/11/2010 |
| + | Agrostemma githago | GB, VC10 Isle of Wight, Bembridge | Marjorie Woolley Bostock | Marjorie Woolley Bostock | 7/1922 | SLBI | 7/8/2011 |
| + | Agrostemma githago | GB, VC11 South Hampshire, Winchester | | Croydon Natural History and Scientific Society
Robert Russell Hutchinson | 6/1833 | SLBI | 8/8/2011 |
| + | Agrostemma githago | GB, VC10 Isle of Wight, Bembridge Point | Marjorie Woolley Bostock | Marjorie Woolley Bostock | 7/1922 | SLBI | 9/8/2011 |
| + | Agrostemma githago | GB, VC17 Surrey, Morden | Charles Edward Britton | Charles Edward Britton | 11/7/1911 | SLBI | 10/8/2011 |
| + | Agrostis canina | GB, VC105 West Ross & Cromarty, Ben Eay | George Claridge Druce | George Stephen West | 1889 | BIRM | 14/4/2009 |
| + | Agrostis canina | GB, VC49 Caernarvonshire, Carnedd Llewelyn | Augustin Ley | Augustin Ley | 12/8/1878 | BIRM | 20/4/2009 |
| + | Agrostis canina | GB, VC105 West Ross & Cromarty, Ben Eay | | Botanical Exchange Club of The British Isles
Augustin Ley
George Claridge Druce | 8/1889 | BIRM | 28/5/2009 |
| + | Agrostis canina | GB, VC6 North Somerset, Crook Peak | Cedric Bucknall | Harold Stuart Thompson | 14/7/1905 | BIRM | 2/6/2009 |
| + | Agrostis canina | GB, VC69 Westmorland, Langdale | Augustin Ley | Augustin Ley | 29/8/1871 | BIRM | 3/7/2009 |
| + | Agrostis canina | GB, VC6 North Somerset, Sharpham Moor | Harold Stuart Thompson | Harold Stuart Thompson | 1/7/1916 | BIRM | 6/7/2009 |
| + | Agrostis canina | GB, VC38 Warwickshire, Hampton Cultivated | Harold Stuart Thompson | Harold Stuart Thompson | 8/1893 | BIRM | 16/1/2010 |
| + | Agrostis canina | GB, VC2 East Cornwall, Tokenbury | Harold Stuart Thompson | Harold Stuart Thompson | 29/6/1920 | BIRM | 6/2/2010 |
| + | Agrostis canina | GB, VC35 Monmouthshire, Trellech | Augustin Ley | Augustin Ley | 6/8/1884 | BIRM | 18/2/2010 |
| + | Agrostis canina | GB, VC57 Derbyshire, Buxton | Augustin Ley | Augustin Ley | 27/7/1867 | BIRM | 21/2/2010 |
| + | Agrostis canina | GB, VC36 Herefordshire, Queen's Wood | Augustin Ley | Augustin Ley | 11/8/1899 | BIRM | 28/2/2010 |
| + | Agrostis canina | GB, VC34 West Gloucestershire, Lydbrook | Augustin Ley | Augustin Ley | 19/7/1875 | BIRM | 7/3/2010 |
| + | Agrostis canina | GB, VC48 Merionethshire, Craig Cau | Augustin Ley | Augustin Ley | 3/9/1875 | BIRM | 12/3/2010 |
| + | Agrostis canina | GB, VC28 West Norfolk, West Acre | Douglas Montague Heath | Douglas Montague Heath | 5/7/1915 | BIRM | 23/3/2010 |
| + | Agrostis canina | GB, VC28 West Norfolk, East Winch Common | Douglas Montague Heath | Douglas Montague Heath | 10/7/1916 | BIRM | 23/3/2010 |
| + | Agrostis canina | IE, VCH1 South Kerry, Carrantuohill | Augustin Ley | Augustin Ley | 20/8/1887 | BIRM | 2/5/2010 |
| + | Agrostis canina | GB, VC40 Shropshire, Caer Caradoc | Augustin Ley | Augustin Ley | 12/7/1909 | BIRM | 4/5/2010 |
| + | Agrostis capillaris | GB, VC58 Cheshire, Delamere | George Alfred Holt | Botanical Exchange Club of The British Isles
Augustin Ley
James Henry Augustus Steuart
John Whitehead | 7/1892 | BIRM | 9/1/2010 |
| + | Agrostis capillaris | GB, VC5,VC6, Blackdown | Harold Stuart Thompson | Harold Stuart Thompson | 7/1916 | BIRM | 26/1/2010 |
| + | Agrostis capillaris | GB, VC34 West Gloucestershire, Durdham Down | Harold Stuart Thompson | Harold Stuart Thompson | 4/8/1915 | BIRM | 30/1/2010 |
| + | Agrostis capillaris | GB, VC36 Herefordshire, Michaelchurch Court | Augustin Ley | Augustin Ley | 12/9/1892 | BIRM | 9/2/2010 |
| + | Agrostis capillaris | GB, VC38 Warwickshire, Sutton Park | James Eustace Bagnall | Birmingham Natural History and Philosophical Society | 8/1893 | BIRM | 26/2/2010 |
| + | Agrostis capillaris | GB, VC10 Isle of Wight, Luccombe | Douglas Montague Heath | Douglas Montague Heath | 4/8/1916 | BIRM | 11/3/2010 |
| + | Agrostis capillaris | GB, VC10 Isle of Wight, Garstons Down | Herbert Mann Livens | | 7/7/1900 | BON | 23/5/2010 |
| + | Agrostis capillaris | | Herbert Mann Livens | | | BON | 30/5/2010 |
| + | Agrostis curtisii | GB, VC11 South Hampshire, New Forest | Augustin Ley | Augustin Ley | 9/8/1882 | BIRM | 23/2/2010 |
| + | Agrostis curtisii | GB, VC1 West Cornwall, Helston | Augustin Ley
James Cunnack | Augustin Ley | 3/7/1883 | BIRM | 14/5/2010 |
| + | Agrostis gigantea | GB, VC55 Leicestershire, South Knighton | William Bell | Botanical Exchange Club of The British Isles
Augustin Ley | 7/1908 | BIRM | 22/4/2009 |
| + | Agrostis gigantea | GB, VC55 Leicestershire, Misterton | Augustin Ley | Augustin Ley | 2/8/1882 | BIRM | 7/6/2009 |
| + | Agrostis gigantea | GB, VC32 Northamptonshire, Kettering | Augustin Ley | Augustin Ley | 9/8/1910 | BIRM | 27/7/2009 |
| + | Agrostis gigantea | GB, VC38 Warwickshire, Hampton in Arden | Harold Stuart Thompson
James Eustace Bagnall | Harold Stuart Thompson | 7/1893 | BIRM | 4/2/2010 |
| + | Agrostis gigantea | GB, VC6 North Somerset, Shapwick | Harold Stuart Thompson | Harold Stuart Thompson | 8/1898 | BIRM | 28/2/2010 |
| + | Agrostis gigantea | GB, VC113 Channel Islands, Jersey, Saint Aubyn's Bay | Augustin Ley | Augustin Ley | 22/7/1885 | BIRM | 4/3/2010 |
| + | Agrostis gigantea | GB, VC40 Shropshire, Whixall Moss | Augustin Ley | Augustin Ley | 26/7/1882 | BIRM | 6/3/2010 |
| + | Agrostis gigantea | GB, VC5,VC6, Bridgwater | Harold Stuart Thompson | Watson Botanical Exchange Club
Harold Stuart Thompson | 7/1898 | BIRM | 21/3/2010 |
| + | Agrostis gigantea | GB, VC35 Monmouthshire, Llangattock | Augustin Ley | Augustin Ley | 24/8/1883 | BIRM | 23/3/2010 |
| + | Agrostis gigantea | GB, VC38 Warwickshire, Rugby | James Eustace Bagnall | Birmingham Natural History and Philosophical Society | 28/7/1883 | BIRM | 30/4/2010 |
| + | Agrostis scabra | GB, VC97 West Inverness-shire, Fersit | Edward Shearburn Marshall
William Andrew Shoolbred | Botanical Exchange Club of The British Isles
Augustin Ley | 24/7/1896 | BIRM | 30/12/2009 |
| + | Agrostis stolonifera | GB, VC6 North Somerset, Berrow Flats | | Harold Stuart Thompson | 13/7/1919 | BIRM | 2/5/2009 |
| + | Agrostis stolonifera | GB, VC6 North Somerset, Berrow | Harold Stuart Thompson | Harold Stuart Thompson | 28/6/1924 | BIRM | 2/5/2009 |
| + | Agrostis stolonifera | GB, VC15 East Kent, Whitstable | | Robert Large Baker | 8/1882 | BIRM | 7/5/2009 |
| + | Agrostis stolonifera | GB, VC6 North Somerset, Bawdrip | Harold Stuart Thompson | Harold Stuart Thompson | 21/7/1920 | BIRM | 16/5/2009 |
| + | Agrostis stolonifera | GB, VC38 Warwickshire, Leamington | James B Phipps | | 29/7/1954 | BIRM | 17/5/2009 |
| + | Agrostis stolonifera | GB, VC17 Surrey, Walton on Thames | | George Stephen West | 24/7/1919 | BIRM | 24/5/2009 |
| + | Agrostis stolonifera | GB, VC6 North Somerset, Berrow Salt marsh | Harold Stuart Thompson | Harold Stuart Thompson | 16/7/1931 | BIRM | 28/5/2009 |
| + | Agrostis stolonifera | GB, VC61 South-east Yorkshire, Skipwith | William West | George Stephen West
William West | 7/1907 | BIRM | 2/6/2009 |
| + | Agrostis stolonifera | GB, VC59 South Lancashire, Ainsdale | Charles Bailey | Botanical Exchange Club of The British Isles
Birmingham Natural History Society
Charles Bailey | 20/8/1892 | BIRM | 14/6/2009 |
| + | Agrostis stolonifera | GB, VC113 Channel Islands, Jersey, Saint Brelade's Bay | Augustin Ley | Augustin Ley | 22/7/1885 | BIRM | 4/7/2009 |
| + | Agrostis stolonifera | GB, VC17 Surrey, Croydon | Harold Stuart Thompson | Harold Stuart Thompson | 25/7/1906 | BIRM | 13/7/2009 |
| + | Agrostis stolonifera | GB, VC88 Mid Perthshire, Crianlarich | William Andrew Shoolbred | Botanical Exchange Club of The British Isles
Augustin Ley
William Andrew Shoolbred | 9/8/1893 | BIRM | 14/7/2009 |
| + | Agrostis stolonifera | GB, VC36 Herefordshire, Sellack | Augustin Ley | Augustin Ley | 6/7/1886 | BIRM | 19/7/2009 |
| + | Agrostis stolonifera | GB, VC80 Roxburghshire, Melrose | William Richardson Linton | Botanical Exchange Club of The British Isles
Augustin Ley
William Richardson Linton | 2/7/1890 | BIRM | 30/12/2009 |
| + | Agrostis stolonifera | GB, VC36 Herefordshire, Sellack | Augustin Ley | Augustin Ley | 14/7/1884 | BIRM | 31/12/2009 |
| + | Agrostis stolonifera | GB, VC17 Surrey, River Wey | Harold Stuart Thompson | Harold Stuart Thompson | 7/1904 | BIRM | 31/12/2009 |
| + | Agrostis stolonifera | GB, VC85 Fifeshire, Balmuto | John Thomas Irvine Boswell-Syme | Botanical Exchange Club of The British Isles
Augustin Ley | 9/1883 | BIRM | 2/1/2010 |
| + | Agrostis stolonifera | GB, VC88 Mid Perthshire, Crianlarich | Edward Shearburn Marshall | Augustin Ley | 9/8/1893 | BIRM | 3/1/2010 |
| + | Agrostis stolonifera | IE, VCH39,VCH40, Toome | George Claridge Druce | Botanical Exchange Club of The British Isles
Augustin Ley | 8/1898 | BIRM | 10/1/2010 |
| + | Agrostis stolonifera | GB, VC44 Carmarthenshire, Nant Mwyn | Augustin Ley | Augustin Ley | 5/8/1897 | BIRM | 12/1/2010 |
| + | Agrostis stolonifera | GB, VC6 North Somerset, Highbridge | Harold Stuart Thompson | Harold Stuart Thompson | 9/7/1921 | BIRM | 12/1/2010 |
| + | Agrostis stolonifera | GB, VC5 South Somerset, Steart Point | Harold Stuart Thompson | Harold Stuart Thompson | 11/8/1923 | BIRM | 12/1/2010 |
| + | Agrostis stolonifera | GB, VC42 Breconshire, Brecon | Augustin Ley | Augustin Ley | 22/7/1883 | BIRM | 14/1/2010 |
| + | Agrostis stolonifera | GB, VC3 South Devon, Teignmouth | Robert Coane Roberts Jordan | Robert Coane Roberts Jordan | 10/1880 | BIRM | 16/1/2010 |
| + | Agrostis stolonifera | GB, VC61 South-east Yorkshire, Driffield | Augustin Ley | Augustin Ley | 7/1887 | BIRM | 28/1/2010 |
| + | Agrostis stolonifera | GB, VC62 North-east Yorkshire, Ayton | William A Mudd | George Stephen West | 8/1852 | BIRM | 30/1/2010 |
| + | Agrostis stolonifera | GB, VC3 South Devon, Teignmouth | Charles James Rufus Jordan | Robert Coane Roberts Jordan | 1849 | BIRM | 30/1/2010 |
| + | Agrostis stolonifera | GB, VC48 Merionethshire, Harlech | William Charles Barton | Watson Botanical Exchange Club
Harold Stuart Thompson
William Charles Barton | 11/8/1915 | BIRM | 3/2/2010 |
| + | Agrostis stolonifera | GB, VC10 Isle of Wight, Newport | Douglas Montague Heath | Douglas Montague Heath | 2/7/1914 | BIRM | 11/2/2010 |
| + | Agrostis stolonifera | GB, VC58 Cheshire, Wallasey | James Alfred Wheldon | Botanical Exchange Club of The British Isles
Augustin Ley
James Alfred Wheldon | 8/1891 | BIRM | 16/2/2010 |
| + | Agrostis stolonifera | GB, VC6 North Somerset, Catcott Drove | Harold Stuart Thompson | Harold Stuart Thompson | 5/8/1915 | BIRM | 5/3/2010 |
| + | Agrostis stolonifera | GB, VC6 North Somerset, Berrow Dunes | Harold Stuart Thompson | Harold Stuart Thompson | 16/7/1931 | BIRM | 11/3/2010 |
| + | Agrostis stolonifera | GB, VC38 Warwickshire, Chesterton | | Robert Large Baker | 16/7/1872 | BIRM | 18/3/2010 |
| + | Agrostis stolonifera | GB, VC6 North Somerset, Berrow Dunes | Harold Stuart Thompson | Harold Stuart Thompson | 22/9/1921 | BIRM | 22/3/2010 |
| + | Agrostis stolonifera | GB, VC15 East Kent, Sandhills, Deal | James Cosmo Melvill | Botanical Exchange Club of The British Isles
Augustin Ley
James Cosmo Melvill | 7/1886 | BIRM | 25/3/2010 |
| + | Agrostis stolonifera | GB, VC6 North Somerset, SaintGeorge's Hill | Harold Stuart Thompson | Harold Stuart Thompson | 22/7/1916 | BIRM | 25/3/2010 |
| + | Agrostis stolonifera | GB, VC2 East Cornwall, Penlee Point | Augustin Ley | Augustin Ley | 8/7/1878 | BIRM | 1/5/2010 |
| + | Agrostis stolonifera | GB, VC34 West Gloucestershire, Bristol | Harold Stuart Thompson | Harold Stuart Thompson | 11/7/1916 | BIRM | 3/5/2010 |
| + | Agrostis stolonifera | GB, VC19 North Essex, Walton on the Naze | Frederick Yorke Brocas | Charles Ottley Groom | 8/1882 | BON | 30/5/2010 |
| + | Agrostis stolonifera x Polypogon monspeliensis = x Agropogon littoralis | GB, VC9 Dorset, Studland | William West
William West | George Stephen West
William West | 28/7/1900 | BIRM | 31/5/2009 |
| + | Agrostis stolonifera x Polypogon monspeliensis = x Agropogon littoralis | GB, VC9 Dorset, Littlesea | William Richardson Linton | Edward Francis Linton
Harold Stuart Thompson | 27/8/1889 | BIRM | 19/6/2009 |
| + | Agrostis stolonifera x Polypogon monspeliensis = x Agropogon littoralis | GB, VC9 Dorset, Littlesea | Edward Francis Linton | Augustin Ley
Edward Francis Linton | 10/7/1892 | BIRM | 13/7/2009 |
| + | Agrostis stolonifera x Polypogon monspeliensis = x Agropogon littoralis | GB, VC6,VC34, Bristol | James Walter White | Harold Stuart Thompson | 8/7/1883 | BIRM | 26/12/2009 |
| + | Agrostis stolonifera x Polypogon monspeliensis = x Agropogon littoralis | GB, VC18 South Essex, Canvey Island | Eyre Champion de Crespigny | London Botanical Exchange Club
Robert Large Baker | 7/1877 | BIRM | 21/3/2010 |
| + | Agrostis tenuis | GB, VC43 Radnorshire, Glasbury | | Augustin Ley | 19/8/1885 | BIRM | 7/5/2009 |
| + | Agrostis tenuis | GB, VC36 Herefordshire, Colwall | Richard Francis Towndrow | Augustin Ley
Richard Francis Towndrow | 3/8/1885 | BIRM | 30/5/2009 |
| + | Agrostis tenuis | GB, VC32 Northamptonshire, Wadenhoe | Augustin Ley | Augustin Ley | 29/7/1910 | BIRM | 6/6/2009 |
| + | Agrostis tenuis | GB, VC11 South Hampshire, Mudeford | William Richardson Linton | Augustin Ley
Edward Francis Linton | 27/6/1890 | BIRM | 3/7/2009 |
| + | Agrostis tenuis | GB, VC37 Worcestershire, Hartlebury Common | George Stephen West | George Stephen West | 5/7/1906 | BIRM | 20/7/2009 |
| + | Aira caryophyllea | GB, VC38 Warwickshire, Hill Wootton | Henry Bromwich | Charles Bailey
Robert Large Baker | 6/1884 | BIRM | 14/4/2009 |
| + | Aira caryophyllea | GB, VC36 Herefordshire, King's Caple | | Augustin Ley | 2/7/1877 | BIRM | 3/5/2009 |
| + | Aira caryophyllea | IE, VCH3,VCH4,VCH5, Cork | | Robert Large Baker | 8/1879 | BIRM | 13/6/2009 |
| + | Aira caryophyllea | GB, VC85 Fifeshire, Pettycur | John Thomas Irvine Boswell-Syme | Augustin Ley | 10/1871 | BIRM | 19/7/2009 |
| + | Aira caryophyllea | GB, VC28 West Norfolk, Swaffham Heath | Douglas Montague Heath | Douglas Montague Heath | 9/7/1915 | BIRM | 19/7/2009 |
| + | Aira caryophyllea | GB, VC10 Isle of Wight, Saint Georges Down | Douglas Montague Heath | Douglas Montague Heath | 12/8/1916 | BIRM | 19/7/2009 |
| + | Aira caryophyllea | GB, VC38 Warwickshire, Hill Wootton | Henry Bromwich | Botanical Exchange Club of The British Isles
Charles Bailey
Robert Large Baker | 6/1884 | BIRM | 30/1/2010 |
| + | Aira caryophyllea | GB, VC2 East Cornwall, Rame Head | Augustin Ley | Augustin Ley | 17/5/1876 | BIRM | 6/2/2010 |
| + | Aira caryophyllea | GB, VC63,VC64, Saltaire | William West | George Stephen West | 6/1908 | BIRM | 18/2/2010 |
| + | Aira caryophyllea | GB, VC45 Pembrokeshire, Tenby | Robert Large Baker | | 6/1873 | BIRM | 10/3/2010 |
| + | Aira caryophyllea | GB, VC38 Warwickshire, Kenilworth | Robert Large Baker | | 1877 | BIRM | 10/3/2010 |
| + | Aira caryophyllea | NO, Kongsvold, Sor-Trondelag | William West | George Stephen West
William West | 8/1909 | BIRM | 4/5/2010 |
| + | Aira caryophyllea | GB, VC55 Leicestershire, Charnwood Forest | J T Harris | Philip Brookes Mason | | BON | 23/5/2010 |
| + | Aira caryophyllea | GB, VC90 Angus, Montrose | | | 6/1841 | BON | 23/5/2010 |
| + | Aira praecox | GB, VC30 Bedfordshire, Aspley Heath | William Hillhouse | William Hillhouse | 28/6/1875 | BIRM | 4/6/2009 |
| + | Aira praecox | GB, VC40 Shropshire, Wrekin | Harold Stuart Thompson | Harold Stuart Thompson | 9/5/1900 | BIRM | 1/8/2009 |
| + | Aira praecox | GB, VC55 Leicestershire, Charnwood Forest | Harold Stuart Thompson | Harold Stuart Thompson | 9/6/1900 | BIRM | 1/8/2009 |
| + | Aira praecox | GB, VC64 Mid-west Yorkshire, Eldwick | William West | George Stephen West
William West | 4/1877 to 7/1877 | BIRM | 30/1/2010 |
| + | Aira praecox | GB, VC36 Herefordshire, Coppet Hill | Augustin Ley | Augustin Ley | 22/6/1880 | BIRM | 7/2/2010 |
| + | Aira praecox | GB, VC45 Pembrokeshire, Tenby | | Robert Large Baker | 6/1873 | BIRM | 20/3/2010 |
| + | Aira praecox | GB, VC3 South Devon, Teignmouth | J T Harris | Philip Brookes Mason | 1872 | BON | 26/5/2010 |
| + | Ajuga reptans | GB, VC37 Worcestershire, Alvechurch | George Stephen West | George Stephen West | 1/6/1910 | BIRM | 21/4/2009 |
| + | Ajuga reptans | GB, VC38 Warwickshire, Berkswell | | George Stephen West | 19/5/1889 | BIRM | 23/4/2009 |
| + | Alisma plantago-aquatica | HR | | Friedrich Wilhelm Noe | | BIRM | 11/4/2009 |
| + | Alisma plantago-aquatica | GB, VC6 North Somerset, Clevedon | Harold Stuart Thompson | Harold Stuart Thompson | 31/10/1929 | BIRM | 17/7/2009 |
| + | Alisma plantago-aquatica | GB, VC6 North Somerset, Shapwick | Augustin Ley | Augustin Ley | 16/9/1910 | BIRM | 19/7/2009 |
| + | Alliaria petiolata | | William Henry Purchas | Augustin Ley
William Henry Purchas | | BIRM | 23/4/2009 |
| + | Alliaria petiolata | | | Birmingham Natural History and Philosophical Society | | BIRM | 1/5/2009 |
| + | Alliaria petiolata | GB, VC34 West Gloucestershire, Bristol | Harold Stuart Thompson | Harold Stuart Thompson | 5/1889 | BIRM | 18/7/2009 |
| + | Alliaria petiolata | GB, VC19 North Essex, Takeley | Douglas Montague Heath | Douglas Montague Heath | 29/4/1898 | BIRM | 29/1/2010 |
| + | Alliaria petiolata | GB, VC4 North Devon, Lynton | Douglas Montague Heath | Douglas Montague Heath | 8/1901 | BIRM | 29/1/2010 |
| + | Alliaria petiolata | GB, VC33 East Gloucestershire, Cheltenham | Dorothy Ellis de Vesian | Dorothy Ellis de Vesian | 5/1954 | GLR | 5/11/2010 |
| + | Alliaria petiolata | GB, VC33 East Gloucestershire, Upper Slaughter | Edward Francis Witts | A Broome-Witts
Edward Francis Witts | | GLR | 6/11/2010 |
| + | Alliaria petiolata | GB, VC33 East Gloucestershire, Gloucester | Gustavus A Ornano St Brody | British Botanical Competition | 6/1864 | GLR | 6/11/2010 |
| + | Alliaria petiolata | GB, VC34 West Gloucestershire, Tutshill | Walter Butt | | 5/1910 | GLR | 6/11/2010 |
| + | Alliaria petiolata | GB, VC33 East Gloucestershire, Kempsford | | | 1907 | GLR | 6/11/2010 |
| + | Alliaria petiolata | GB, VC33 East Gloucestershire, Crickley Hill | John Wilton Haines | John Wilton Haines | 21/4/1910 | GLR | 7/11/2010 |
| + | Allium ampeloprasum | GB, VC113 Channel Islands, Guernsey, Fort George | Margaret Dawber | Harold Stuart Thompson | 7/1890 | BIRM | 4/6/2009 |
| + | Allium ampeloprasum | GB, VC1 West Cornwall, Padstow | James Cunnack | Botanical Exchange Club of The British Isles
Augustin Ley | 8/1879 | BIRM | 31/12/2009 |
| + | Allium ampeloprasum | GB, VC1 West Cornwall, Poltesco | James Cunnack | Augustin Ley | 9/1875 | BIRM | 20/3/2010 |
| + | Allium carinatum | GB, VC6,VC34, Clifton Bridge | Douglas Montague Heath | Douglas Montague Heath | 12/8/1926 | BIRM | 5/1/2010 |
| + | Allium carinatum | GB, VC83 Midlothian, Carlowrie | McTaggert Cowan | Watson Botanical Exchange Club
Harold Stuart Thompson
McTaggert Cowan | 12/8/1910 | BIRM | 8/2/2010 |
| + | Allium carinatum | GB, VC88 Mid Perthshire, River Tay | Job Edward Lousley | Harold Stuart Thompson | 26/7/1935 | BIRM | 8/2/2010 |
| + | Allium carinatum | GB, VC83 Midlothian, Musselburgh | | London Botanical Exchange Club
Alexander Craig Christie
Robert Large Baker | 5/5/1877
30/7/1878 | BIRM | 27/3/2010 |
| + | Allium oleraceum | GB, VC34 West Gloucestershire, Durdham Down | Harold Stuart Thompson | Harold Stuart Thompson | 4/8/1915 | BIRM | 14/4/2009 |
| + | Allium oleraceum | GB, VC36 Herefordshire, Whitbourne | Richard Francis Towndrow | Augustin Ley | 22/7/1897 | BIRM | 3/7/2009 |
| + | Allium oleraceum | GB, VC9 Dorset, Compton Abbas | William Richardson Linton | Augustin Ley
Edward Francis Linton | 26/6/1893 | BIRM | 12/1/2010 |
| + | Allium oleraceum | GB, VC64 Mid-west Yorkshire, Adel | William West | George Stephen West
William West | 30/6/1906 | BIRM | 14/1/2010 |
| + | Allium oleraceum | GB, VC57 Derbyshire, Long Eaton | William Richardson Linton | Botanical Exchange Club of The British Isles
Augustin Ley | 13/7/1897 | BIRM | 7/2/2010 |
| + | Allium oleraceum | GB, VC63,VC64, Apperley | William West | George Stephen West | 7/1878 | BIRM | 20/3/2010 |
| + | Allium oleraceum | GB, VC64 Mid-west Yorkshire, Meanwood | William West | George Stephen West
William West | 7/1907 | BIRM | 4/5/2010 |
| + | Allium schoenoprasum | GB, VC44 Carmarthenshire, Carreg Cennen Cultivated | Augustin Ley | Augustin Ley | 20/6/1890 | BIRM | 17/4/2009 |
| + | Allium schoenoprasum | GB, VC1 West Cornwall, Kynance | James Cunnack | Botanical Exchange Club of The British Isles
Robert Large Baker | 6/1875 | BIRM | 17/4/2009 |
| + | Allium schoenoprasum | GB, VC42 Breconshire, Erwood | Spencer Henry Bickham | Watson Botanical Exchange Club
Harold Stuart Thompson
Spencer Henry Bickham | 9/6/1904 | BIRM | 14/5/2009 |
| + | Allium schoenoprasum | GB, VC42 Breconshire, Erwood | Harold Stuart Thompson | Harold Stuart Thompson | 1930 | BIRM | 14/5/2009 |
| + | Allium schoenoprasum | GB, VC68 North Northumberland, Spindlestone Hills | William M Richardson | Augustin Ley | 6/1871 | BIRM | 13/7/2009 |
| + | Allium schoenoprasum | GB, VC42 Breconshire, Erwood | William Hunt Painter | Botanical Exchange Club of The British Isles
Augustin Ley
William Hunt Painter | 6/1900 | BIRM | 9/2/2010 |
| + | Allium schoenoprasum | GB, VC1 West Cornwall, Kynance Cove | James Cunnack | Langley Kitching | 6/1881 | BIRM | 10/2/2010 |
| + | Allium schoenoprasum | GB, VC1 West Cornwall, Kynance, Rill Head | James Cunnack | Langley Kitching | 25/7/1881 | BIRM | 10/2/2010 |
| + | Allium schoenoprasum | GB, VC42 Breconshire, Erwood | Augustin Ley | Augustin Ley | 27/7/1883 | BIRM | 10/3/2010 |
| + | Allium schoenoprasum | GB, VC62 North-east Yorkshire, Ayton | William A Mudd | George Stephen West | 7/1852 | BIRM | 8/4/2010 |
| + | Allium scorodoprasum | GB, VC64 Mid-west Yorkshire, Selby | West | George Stephen West | 5/8/1878 | BIRM | 14/5/2009 |
| + | Allium scorodoprasum | GB, VC81 Berwickshire, Tweed Side | George Claridge Druce | Botanical Exchange Club of The British Isles
Augustin Ley | 8/1906 | BIRM | 13/7/2009 |
| + | Allium scorodoprasum | GB, VC74 Wigtownshire, Barnbarroch | Emily Kate Higgins | Watson Botanical Exchange Club
Augustin Ley
Emily Kate Higgins | 7/1904 | BIRM | 14/7/2009 |
