| + | Acer campestre var. hebecarpum | GB, VC5 South Somerset, Wembdon | Thomas Clark | Harold Stuart Thompson
Thomas Clark | 3/6/1832 | BIRM | 7/4/2009 |
| + | Acer pseudoplatanus | GB, VC58 Cheshire, Knutsford | Charles Bailey | Charles Bailey | 21/4/1894 | BIRM | 26/1/2009 |
| + | Actaea spicata | GB, VC62 North-east Yorkshire, Hambleton Hills | Frederick Robinson | Douglas Montague Heath | 6/1920 | BIRM | 10/3/2010 |
| + | Actaea spicata | GB, VC62 North-east Yorkshire, Rievaulx | Douglas Montague Heath | Douglas Montague Heath | 5/1908 | BIRM | 10/3/2010 |
| + | Adoxa moschatellina | GB, VC29 Cambridgeshire, Chesterton | Richard Henry Yapp | | 4/1902 | ABS | 21/2/2009 |
| + | Aegopodium podagraria | GB, VC29 Cambridgeshire, Cherry Hinton | Richard Henry Yapp | | 26/5/1903 | ABS | 28/1/2009 |
| + | Aethusa cynapium | GB, VC46 Cardiganshire, Llanfihangel-y-creuddyn | M Hildred Bigwood | | 8/1968 | ABS | 8/3/2009 |
| + | Agrostis curtisii | GB, VC41 Glamorganshire, Oxwich Point | Leslie John Audus | | 26/6/1937 | ABS | 26/1/2009 |
| + | Agrostis stolonifera | GB, VC46 Cardiganshire, Ynyslas Dunes | M Hildred Bigwood | | 7/1972 | ABS | 8/2/2009 |
| + | Agrostis stolonifera | GB, VC13 West Sussex, Cissbury | | Henry Haselfoot Haines | 30/6/1887 | ABS | 8/2/2009 |
| + | Agrostis stolonifera | GB, VC35 Monmouthshire, Usk | L H Davies | | 28/8/1961 | ABS | 8/2/2009 |
| + | Agrostis stolonifera | GB, VC10 Isle of Wight, Shanklin | Douglas Montague Heath | Douglas Montague Heath | 24/7/1915 | BIRM | 26/6/2009 |
| + | Agrostis stolonifera | GB, VC91 Kincardineshire | John Thomas Irvine Boswell-Syme | London Botanical Exchange Club
Robert Large Baker | 9/1882 | BIRM | 19/7/2009 |
| + | Agrostis stolonifera x Polypogon monspeliensis = x Agropogon littoralis | GB, VC27,VC28 | William Whitear | George Stephen West
William West | 30/6/1834 | BIRM | 11/2/2010 |
| + | Alopecurus pratensis | GB, VC64 Mid-west Yorkshire, Allerton | William West | George Stephen West
William West | 6/1877 | BIRM | 9/3/2010 |
| + | Althaea officinalis | GB, VC35 Monmouthshire, Severn Tunnel Junction Station | Augustin Ley | Augustin Ley | 31/8/1904 | BIRM | 9/3/2010 |
| + | Anacamptis pyramidalis | GB, VC60 West Lancashire, Bowland | Denis John Carr | University of Manchester | 7/1947 | ABS | 21/2/2009 |
| + | Anagallis arvensis | GB, VC30 Bedfordshire, Bedford | William Hillhouse | | 24/6/1875 | BIRM | 31/3/2009 |
| + | Anagallis arvensis | GB, VC6 North Somerset, Berrow | Harold Stuart Thompson | Harold Stuart Thompson | 22/9/1931 | BIRM | 7/4/2009 |
| + | Anagallis minima | GB, VC9 Dorset, Studland Bay | William West | George Stephen West
William West | 31/7/1900 | BIRM | 3/4/2009 |
| + | Anagallis tenella | GB, VC49,VC50, Fairy Glen, Betws-y-Coed | William Henry Wilkinson | William Henry Wilkinson | 30/8/1884 | BIRM | 8/3/2009 |
| + | Anagallis tenella | GB, VC3 South Devon, Haldon Hill | Robert Coane Roberts Jordan | | 7/1876 | BIRM | 13/3/2009 |
| + | Anagallis tenella | GB, VC6 North Somerset, Ashcott | Harold Stuart Thompson | Harold Stuart Thompson | 1/7/1916 | BIRM | 11/4/2009 |
| + | Anchusa arvensis | GB, VC62 North-east Yorkshire, Riccal | William West | George Stephen West | 8/1878 | BIRM | 11/4/2009 |
| + | Anthriscus caucalis | | | | | ABS | 7/2/2009 |
| + | Anthriscus caucalis | GB, VC25 East Suffolk, Martlesham | M Hildred Bigwood | | 6/1984 | ABS | 21/2/2009 |
| + | Apium inundatum | GB, VC38 Warwickshire, Sutton Park | Harold Stuart Thompson | Harold Stuart Thompson | 6/1902 | BIRM | 8/5/2009 |
| + | Apium inundatum | GB, VC38 Warwickshire, Sutton Park, Bracebridge Pool | Harold Stuart Thompson | Harold Stuart Thompson | 6/1902 | BIRM | 8/5/2009 |
| + | Apium nodiflorum | GB, VC6,VC34, Bedminster | William Hunt Painter | William Hunt Painter | 7/1881 | ABS | 6/3/2009 |
| + | Apium nodiflorum | GB, VC18 South Essex, Epping Forest | Madeline Jackson | | 4/9/1962 | ABS | 5/2/2009 |
| + | Arabis petraea | GB, VC96 East Inverness-shire, Llairig Ghru | Henry Groves | Botanical Exchange Club of The British Isles
Henry & James Groves
William Hunt Painter | 29/8/1901 | ABS | 22/1/2009 |
| + | Arenaria serpyllifolia | GB, VC6 North Somerset, Uphill | Harold Stuart Thompson | Harold Stuart Thompson | 21/8/1931 | BIRM | 1/4/2009 |
| + | Arenaria serpyllifolia var. leptoclados | GB, VC38 Warwickshire, Myton | James Eustace Bagnall | Birmingham Natural History and Philosophical Society | | BIRM | 5/4/2009 |
| + | Arenaria serpyllifolia subsp. leptoclados | GB, VC29 Cambridgeshire, Devil's Ditch | William Hillhouse | William Hillhouse | 12/8/1879 | BIRM | 7/4/2009 |
| + | Arenaria serpyllifolia subsp. leptoclados | GB, VC17 Surrey, Betchworth | D A J Little | | 4/7/1948 | ABS | 22/1/2009 |
| + | Arenaria serpyllifolia subsp. serpyllifolia | GB, VC15 East Kent, Pluckley | William West | George Stephen West
William West | 6/1877 | BIRM | 10/3/2010 |
| + | Armeria maritima | IE, VCH1 South Kerry, Waterville | William West | George Stephen West
William West | 5/1904 | BIRM | 25/7/2009 |
| + | Arrhenatherum elatius | GB, VC6 North Somerset, Weston-super-Mare | Charles Smith Nicholson | Charles Smith Nicholson | 22/6/1901 | ABS | 13/2/2009 |
| + | Arrhenatherum elatius | GB, VC38 Warwickshire, Edgbaston Park | William Hunt Painter | William Hunt Painter | 7/1870 | ABS | 13/2/2009 |
| + | Artemisia vulgaris | GB, VC1 West Cornwall, Marazion Marsh | D A J Little | | 18/9/1946 | ABS | 21/2/2009 |
| + | Asperula cynanchica | GB, VC6 North Somerset, Crook Peak | William Booth Waterfall | Harold Stuart Thompson | 1880 | BIRM | 21/2/2009 |
| + | Asperula cynanchica | GB, VC6 North Somerset, Bleadon | Harold Stuart Thompson | Harold Stuart Thompson | 7/1888 | BIRM | 21/2/2009 |
| + | Asperula cynanchica | GB, VC6 North Somerset, Sham castle | Harold Stuart Thompson | Harold Stuart Thompson | 14/8/1935 | BIRM | 21/2/2009 |
| + | Astragalus glycyphyllos | GB, VC16 West Kent, Darenth Wood | Robert Coane Roberts Jordan | Robert Coane Roberts Jordan | 5/7/1848 | BIRM | 8/3/2009 |
| + | Astragalus glycyphyllos | GB, VC39 Staffordshire, Stafford | Robert Cooper Douglas | George Stephen West
Martha Maria Atwood | 8/1850 | BIRM | 3/4/2009 |
| + | Astragalus glycyphyllos | GB, VC6 North Somerset, Walton | Thomas Clark | Harold Stuart Thompson
Thomas Clark | 10/9/1853 | BIRM | 9/4/2009 |
| + | Atriplex laciniata | GB, VC49 Caernarvonshire, Llandudno | William Hunt Painter | | 7/1868 | ABS | 16/2/2009 |
| + | Atropa belladonna | GB, VC32 Northamptonshire, Wakerley Wood | Augustin Ley | Augustin Ley | 8/8/1910 | BIRM | 29/6/2009 |
| + | Atropa belladonna | | Robert Coane Roberts Jordan | Robert Coane Roberts Jordan | 1848 | BIRM | 7/4/2009 |
| + | Avena strigosa | GB, VC36 Herefordshire, Saint Weonards, Coldbrook Farm | Augustin Ley | Augustin Ley | 24/6/1884 | BIRM | 7/8/2009 |
| + | Avena strigosa | GB, VC36 Herefordshire, Saint Weonards | Augustin Ley | Augustin Ley | 5/7/1881 | BIRM | 14/3/2010 |
| + | Avena strigosa | GB, VC12 North Hampshire, Crookham | Douglas Montague Heath | Douglas Montague Heath | 22/7/1915 | BIRM | 16/3/2010 |
| + | Barbarea stricta | GB, VC17 Surrey, Kew | Albert Bruce Jackson | Botanical Exchange Club of The British Isles
Augustin Ley | 19/5/1907
20/5/1907 | BIRM | 12/3/2010 |
| + | Barbarea stricta | GB, VC17 Surrey, Kew | Albert Bruce Jackson | Botanical Exchange Club of The British Isles
Augustin Ley | 20/5/1907 | BIRM | 12/3/2010 |
| + | Betonica officinalis | GB, VC36 Herefordshire, Stapleton Glen | Augustin Ley | Augustin Ley | 19/7/1898 | BIRM | 4/8/2009 |
| + | Betula alba | GB, VC106 East Ross & Cromarty, Garve | Edward Shearburn Marshall | Watson Botanical Exchange Club
Augustin Ley | 20/7/1909 | BIRM | 13/3/2009 |
| + | Betula alba | GB, VC106 East Ross & Cromarty, Loch Achilty | Edward Shearburn Marshall | Botanical Exchange Club of The British Isles
Augustin Ley | 15/7/1909 | BIRM | 7/4/2009 |
| + | Betula pendula | GB, VC17 Surrey, Ockley | William Hadden Beeby | Botanical Exchange Club of The British Isles
Charles Bailey | 28/8/1884 | BIRM | 5/4/2009 |
| + | Blysmus rufus | GB, VC48 Merionethshire, Mochras Point | Edward Cleminshaw | | 7/1904 | BIRM | 10/4/2009 |
| + | Brachypodium pinnatum | GB, VC37 Worcestershire, Little Malvern | Albert John Crosfield | Watson Botanical Exchange Club
Albert John Crosfield
Harold Stuart Thompson | 20/8/1915 | BIRM | 16/3/2010 |
| + | Bromopsis erecta | GB, VC6 North Somerset, Shipham | Harold Stuart Thompson | Harold Stuart Thompson | 25/6/1924 | BIRM | 26/6/2009 |
| + | Bromus commutatus | GB, VC12 North Hampshire, Basingstoke | Hewett Cottrell Watson | Augustin Ley | 1866 | BIRM | 31/7/2009 |
| + | Bromus japonicus | GB, VC33 East Gloucestershire, Gloucester | Gustavus A Ornano St Brody | Augustin Ley | 1868 | BIRM | 11/2/2010 |
| + | Bromus racemosus | GB, VC57 Derbyshire, Thorpe | Augustin Ley | Augustin Ley | 26/6/1886 | BIRM | 16/3/2010 |
| + | Bryonia dioica | GB, VC30 Bedfordshire, Flitwick | Mary Ann Brooks | | | BIRM | 9/3/2010 |
| + | Bupleurum rotundifolium | GB, VC19 North Essex, Hatfield Broad Oak | Douglas Montague Heath | Douglas Montague Heath | 6/1920 | BIRM | 9/3/2010 |
| + | Butomus umbellatus | GB, VC38 Warwickshire, Bradnock's Marsh | William Henry Wilkinson | William Henry Wilkinson | 23/7/1881 | BIRM | 21/2/2010 |
| + | Butomus umbellatus | GB, VC37 Worcestershire, Bewdley | Langley Kitching | Langley Kitching | 8/9/1882 | BIRM | 13/3/2010 |
| + | Buxus sempervirens | GB, VC62 North-east Yorkshire, Castle Howard | William West | George Stephen West | 3/1880 | BIRM | 9/4/2009 |
| + | Calamintha arvensis | GB, VC17 Surrey, Chipstead | Walter Stiles | Walter Stiles | 21/7/1906 | BIRM | 9/2/2010 |
| + | Calystegia sepium | GB, VC47 Montgomeryshire, Llanllugan | H L J Humphreys | | 29/7/1961 | ABS | 5/2/2009 |
| + | Campanula glomerata | GB, VC30 Bedfordshire, Dunstable | Dorcas Martha Higgins | Harold Stuart Thompson | 18/10/1888 | BIRM | 20/1/2009 |
| + | Campanula glomerata | GB, VC14 East Sussex, Seaford | Harold Stuart Thompson | Harold Stuart Thompson | 8/1906 | BIRM | 20/1/2009 |
| + | Campanula glomerata | GB, VC6 North Somerset, Collard Hill | Thomas Clark | Harold Stuart Thompson | 8/1834 | BIRM | 20/1/2009 |
| + | Campanula glomerata | GB, VC6 North Somerset, Collard Hill | Thomas Clark | Harold Stuart Thompson | 1834 | BIRM | 20/1/2009 |
| + | Campanula glomerata | GB, VC10 Isle of Wight, Freshwater | Charles Bailey | Botanical Exchange Club of The British Isles
Charles Bailey | 10/10/1888 | BIRM | 2/3/2009 |
| + | Campanula glomerata | GB, VC38 Warwickshire, Chesterton | | Robert Large Baker | 16/7/1872 | BIRM | 7/4/2009 |
| + | Campanula latifolia | GB, VC63 South-west Yorkshire, Shipley | William West | George Stephen West | 7/1878 | BIRM | 7/4/2009 |
| + | Campanula latifolia | GB, VC42 Breconshire, Aberclydach | Augustin Ley | Augustin Ley | 30/7/1900 | BIRM | 19/2/2009 |
| + | Campanula rotundifolia | GB, VC60 West Lancashire, Silverdale | William West | George Stephen West
William West | 7/1907 | BIRM | 11/4/2009 |
| + | Campanula rotundifolia | GB, VC49 Caernarvonshire, Aberdaron | June Wilding | | 12/9/1960 | ABS | 21/2/2009 |
| + | Campanula rotundifolia | GB, VC64 Mid-west Yorkshire, Acomb | Harold Stuart Thompson | Harold Stuart Thompson | 8/1903 | BIRM | 7/4/2009 |
| + | Campanula rotundifolia | GB, VC36 Herefordshire, Eastnor | Spencer Henry Bickham | Harold Stuart Thompson
Spencer Henry Bickham | 18/7/1913 | BIRM | 7/4/2009 |
| + | Campanula trachelium | GB, VC10 Isle of Wight, Apesdown | Charles Bailey | | 8/8/1888 | BIRM | 8/4/2009 |
| + | Capsella bursa-pastoris | GB, VC16 West Kent, Cliffe Woods, Rochester | M J Kearsey | | 8/9/1959 | ABS | 10/3/2009 |
| + | Carduus crispus | GB, VC13 West Sussex, Worthing | | Henry Haselfoot Haines | 6/1887 | ABS | 14/3/2009 |
| + | Carex acutiformis | GB, VC29 Cambridgeshire, Wicken Fen | Walter Stiles | Walter Stiles | 7/6/1909 | BIRM | 19/7/2009 |
| + | Carex arenaria | GB, VC48 Merionethshire, Tywyn | Augustin Ley | Augustin Ley | 14/6/1865 | BIRM | 29/6/2009 |
| + | Carex binervis | GB, VC5 South Somerset, Hodder's Combe, Quantocks | Harold Stuart Thompson | Harold Stuart Thompson | 24/7/1920 | BIRM | 13/2/2010 |
| + | Carex binervis | GB, VC6 North Somerset, Black Down | Harold Stuart Thompson | Harold Stuart Thompson | 3/6/1920 | BIRM | 13/2/2010 |
| + | Carex binervis | GB, VC96 East Inverness-shire, Glenmore Forest | R E Longton | | 1/7/1959 | BIRM | 11/2/2009 |
| + | Carex binervis | GB, VC62 North-east Yorkshire, Ayton | William A Mudd | George Stephen West | 7/1852 | BIRM | 11/2/2009 |
| + | Carex hostiana | GB, VC64 Mid-west Yorkshire, Austwick | William West | George Stephen West
William West | 7/1907 | BIRM | 9/3/2010 |
| + | Carex nigra | GB, VC52 Anglesey, Cors Bodeilio | George Claridge Druce | Botanical Exchange Club of The British Isles
Augustin Ley | 7/1900 | BIRM | 22/7/2009 |
| + | Carex nigra | GB, VC17 Surrey, Virginia Water | Augustin Ley | Augustin Ley | 17/5/1899 | BIRM | 11/2/2009 |
| + | Carex nigra | GB, VC38 Warwickshire, Sutton Park, Longmoor | James B Phipps | | 5/7/1954 | BIRM | 11/2/2009 |
| + | Carex nigra | GB, VC40 Shropshire, Caer Caradoc | Augustin Ley | Augustin Ley | 12/7/1909 | BIRM | 11/2/2009 |
| + | Carex panicea | IE, VCH1 South Kerry, Glencar | James B Phipps | | 25/6/1954 | BIRM | 11/2/2009 |
| + | Carex panicea | GB, VC52 Anglesey, Holyhead | John Edwards Griffith | Botanical Exchange Club of The British Isles
Augustin Ley | 5/1892 | BIRM | 11/2/2009 |
| + | Centaurea aspera | GB, VC113 Channel Islands, Jersey, Saint Ouen's | John Fraser | William Hunt Painter | 7/1876 | ABS | 21/1/2009 |
| + | Centaurea nigra | GB, VC44 Carmarthenshire, Llanelly | R Anthony Jenkins | | 19/8/1961 | ABS | 20/1/2009 |
| + | Centaurea nigra | GB, VC16 West Kent, Orpington | J R Hillman | | 10/8/1963 | ABS | 5/2/2009 |
| + | Centaurea nigra | GB, VC42 Breconshire, Llangammarch Wells | Eilean Davies | | 4/8/1967 | ABS | 7/3/2009 |
| + | Centaurea scabiosa | GB, VC10 Isle of Wight, Brading Down | A J Cooper | A J Cooper | 10/8/1961 | ABS | 28/1/2009 |
| + | Centranthus ruber | GB, VC6 North Somerset, Glastonbury | Thomas Clark | Harold Stuart Thompson
Thomas Clark | 4/7/1829 | BIRM | 19/3/2010 |
| + | Cerastium alpinum | GB, VC69 Westmorland, Helvellyn, Red Tarn | Augustin Ley | Augustin Ley | 11/7/1905 | BIRM | 21/7/2009 |
| + | Cerastium alpinum | GB, VC69 Westmorland, Dollywagon Pike | Augustin Ley | Augustin Ley | 11/7/1905 | BIRM | 21/7/2009 |
| + | Cerastium alpinum | GB, VC88 Mid Perthshire, Ben Lawers | William West | George Stephen West
William West | 7/1889 | BIRM | 15/2/2009 |
| + | Cerastium alpinum | GB, VC97 West Inverness-shire, Ben Nevis | R Heath | | 11/7/1912 | BIRM | 15/2/2009 |
| + | Cerastium alpinum | GB, VC88 Mid Perthshire, Ben Lawers
GB, VC88 Mid Perthshire, Killin | Edward Francis Linton | Harold Stuart Thompson | 29/7/1882 | BIRM | 15/2/2009 |
| + | Cerastium alpinum | GB, VC88 Mid Perthshire, Ben Lawers | Douglas Montague Heath | Douglas Montague Heath | 18/8/1927 | BIRM | 15/2/2009 |
| + | Cerastium alpinum | GB, VC107,VC108, Ben More | Augustin Ley | Augustin Ley | 17/6/1866 | BIRM | 15/2/2009 |
| + | Cerastium alpinum | GB, VC69 Westmorland, Helvellyn | Augustin Ley | | 7/9/1871 | BIRM | 7/4/2009 |
| + | Cerastium arvense | GB, VC63 South-west Yorkshire, Smeaton Crags | William West | | 4/1878 | BIRM | 8/4/2009 |
| + | Cerastium cerastoides | GB, VC92 South Aberdeenshire, Cairn Toul | John Thomas Irvine Boswell-Syme | John Thomas Irvine Boswell-Syme
Thomas Clark | 9/1851 | BIRM | 11/3/2009 |
| + | Cerastium glomeratum | GB, VC13 West Sussex, Lodsworth | William Charles Barton | Watson Botanical Exchange Club | 22/8/1918 | BIRM | 31/3/2009 |
| + | Cerastium glomeratum | GB, VC38 Warwickshire, Sutton Coldfield | Robert Coane Roberts Jordan | Robert Coane Roberts Jordan | 21/5/1853 | BIRM | 7/4/2009 |
| + | Cerastium glomeratum | GB, VC34 West Gloucestershire, Mitcheldean Meend | Augustin Ley | Augustin Ley | 27/5/1887 | BIRM | 14/3/2010 |
| + | Cerastium glomeratum | GB, VC45 Pembrokeshire, Saint Justinians | Andrew David Quentin Agnew | | 2/6/1975 | ABS | 20/2/2009 |
| + | Cerastium pumilum | GB, VC23 Oxfordshire, Woodstock | George Claridge Druce | Botanical Exchange Club of The British Isles | 4/1905 | BIRM | 11/4/2009 |
| + | Chenopodium album | GB, VC44 Carmarthenshire, Llanfair-ar-y-bryn | E D Williams | | 27/9/1960 | ABS | 16/2/2009 |
| + | Chenopodium album | GB, VC44 Carmarthenshire, Llandovery | Eifion R Morgan | Eifion R Morgan | 8/1960 | ABS | 16/2/2009 |
| + | Chenopodium ficifolium | GB, VC1 West Cornwall, Penzance | Edward Morell Holmes | Arthur Waters Preston | 1878 | ABS | 16/2/2009 |
| + | Chenopodium ficifolium | GB, VC21 Middlesex, Crouch End | Charles Smith Nicholson | Charles Smith Nicholson | 24/9/1903 | ABS | 16/2/2009 |
| + | Chenopodium polyspermum | GB, VC46 Cardiganshire, Gogerddan | R G Woods | | 9/1975 | ABS | 16/2/2009 |
| + | Chrysosplenium oppositifolium | GB, VC49 Caernarvonshire, Llanberis | Richard Henry Yapp | | 4/1899 | ABS | 6/2/2009 |
| + | Chrysosplenium oppositifolium | GB, VC63,VC64, Bingley | George Stephen West | George Stephen West | | BIRM | 5/4/2009 |
| + | Cicuta virosa | GB, VC27 East Norfolk, Ranworth | Arthur Waters Preston | Arthur Waters Preston
George Stephen West | 8/1881 | BIRM | 31/7/2009 |
| + | Circaea lutetiana | GB, VC46 Cardiganshire, LLanfarian, Nant Lolwyn | M Hildred Bigwood | | 8/1972 | ABS | 13/3/2009 |
| + | Cladium mariscus | GB, VC28 West Norfolk, East Walton | Douglas Montague Heath | Douglas Montague Heath | 28/6/1915 | BIRM | 1/8/2009 |
| + | Claytonia sibirica | GB, VC1 West Cornwall, Saint Marys, Bar Point | D A J Little | | 22/10/1946 | ABS | 25/1/2009 |
| + | Clematis vitalba | GB, VC55 Leicestershire, Leicester | William Bell | Harold Stuart Thompson | 6/1901 | BIRM | 18/2/2009 |
| + | Clematis vitalba | GB, VC37 Worcestershire, Broadway | | Birmingham Natural History and Philosophical Society | 8/9/1888 | BIRM | 11/4/2009 |
| + | Clematis vitalba | GB, VC34 West Gloucestershire, Durdham Down | Harold Stuart Thompson | Harold Stuart Thompson | 4/8/1915
1/9/1917 | BIRM | 21/2/2009 |
| + | Clematis vitalba | GB, VC34 West Gloucestershire, Durdham Down | Harold Stuart Thompson | Harold Stuart Thompson | 4/8/1915 | BIRM | 21/2/2009 |
| + | Clematis vitalba | GB, VC38 Warwickshire, Wootton Wawen | Douglas Montague Heath | Douglas Montague Heath | 27/9/1948 | BIRM | 8/3/2009 |
| + | Clinopodium vulgare | GB, VC37 Worcestershire, Wyre Forest | Langley Kitching | Langley Kitching | 11/8/1897 | BIRM | 19/7/2009 |
| + | Cochlearia danica | GB, VC46 Cardiganshire, Aberystwyth | M Hildred Bigwood | | 4/1967 | ABS | 22/1/2009 |
| + | Cochlearia danica | GB, VC69 Westmorland, Walney Island | Leslie John Audus | Leslie John Audus | 4/1938 | ABS | 20/2/2009 |
| + | Coincya monensis | GB, VC60 West Lancashire, Lytham | Henry (Harry) Searle | William Hunt Painter | 6/1881 | ABS | 21/2/2009 |
| + | Conopodium majus | GB, VC41 Glamorganshire, Garth Woods | Leslie John Audus | Leslie John Audus | 5/1937 | ABS | 8/3/2009 |
| + | Convallaria majalis | GB, VC64 Mid-west Yorkshire, Giggleswick Scar | Douglas Montague Heath | Douglas Montague Heath | 21/5/1930 | BIRM | 12/3/2010 |
| + | Corydalis solida | | Langley Kitching | | 9/4/1898 | BIRM | 12/3/2010 |
| + | Crepis capillaris | GB, VC13 West Sussex, Worthing | | Henry Haselfoot Haines | 1886 | ABS | 5/2/2009 |
| + | Cruciata laevipes | GB, VC64 Mid-west Yorkshire, Apperley Bridge | William West | George Stephen West
William West | 9/7/1890 | BIRM | 18/2/2009 |
| + | Cruciata laevipes | GB, VC62 North-east Yorkshire, Ayton | William A Mudd | George Stephen West | 6/1853 | BIRM | 7/4/2009 |
| + | Cucubalus baccifer | | | William Hunt Painter | | ABS | 21/2/2009 |
| + | Cymbalaria muralis | GB, VC47 Montgomeryshire, Llanfair Caereinion | H L J Humphreys | H L J Humphreys | 25/6/1961 | ABS | 20/2/2009 |
| + | Cynodon dactylon | GB, VC9 Dorset, Studland | Philip Scarborough King | | 21/8/1883 | ABS | 20/1/2009 |
| + | Cynodon dactylon | | Henry Roberts | George Stephen West
Martha Maria Atwood | 9/1853 | BIRM | 5/5/2009 |
| + | Cynodon dactylon | GB, VC1 West Cornwall, Marazion | Anna Rupell
John Gilbert Baker | George Stephen West | | BIRM | 5/5/2009 |
| + | Cynodon dactylon | | Henry Roberts | George Stephen West
Martha Maria Atwood | 9/1853 | BIRM | 5/5/2009 |
| + | Cynodon dactylon | GB, VC1 West Cornwall, Marazion | Anna Rupell
John Gilbert Baker | George Stephen West | | BIRM | 5/5/2009 |
| + | Cynodon dactylon | GB, VC9 Dorset, Studland | Henry Roberts | George Stephen West
Martha Maria Atwood | 9/1853 | BIRM | 5/5/2009 |
| + | Cynodon dactylon | GB, VC1 West Cornwall, Marazion | Anna Russell | George Stephen West
John Gilbert Baker | | BIRM | 5/5/2009 |
| + | Cynodon dactylon | GB, VC34 West Gloucestershire, Bristol | Ivor W Evans | Harold Stuart Thompson | 6/10/1935 | BIRM | 12/3/2010 |
| + | Cynoglossum officinale | GB, VC15 East Kent, Folkestone Warren | Walter Stiles | Walter Stiles | 6/1907 | BIRM | 5/6/2009 |
| + | Cynoglossum officinale | GB, VC34 West Gloucestershire, Frenchay | Harold Stuart Thompson | Harold Stuart Thompson | 18/7/1915 | BIRM | 10/4/2009 |
| + | Cynoglossum officinale | GB, VC38 Warwickshire, Bidford-on-Avon | Harold Stuart Thompson | Harold Stuart Thompson | 6/1896 | BIRM | 10/4/2009 |
| + | Cynosurus cristatus | GB | William Hillhouse | William Hillhouse | 19/6/1875 | BIRM | 29/6/2009 |
| + | Cynosurus cristatus | GB, VC28 West Norfolk, West Acre | Douglas Montague Heath | Douglas Montague Heath | 8/6/1915 | BIRM | 19/7/2009 |
| + | Cynosurus cristatus | GB, VC36 Herefordshire, Much Marcle | | Augustin Ley | 19/10/1866 | BIRM | 19/10/2009 |
| + | Cynosurus cristatus | GB, VC63 South-west Yorkshire, Huddersfield | Pamela M Shaw | | 11/7/1959 | ABS | 13/2/2009 |
| + | Cynosurus cristatus | GB, VC35 Monmouthshire, Usk | L H Davies | | 28/8/1961 | ABS | 13/2/2009 |
| + | Dactylorhiza fuchsii | GB, VC38 Warwickshire, Sutton Park | William Henry Wilkinson | William Henry Wilkinson | 13/7/1881 | BIRM | 12/3/2010 |
| + | Deschampsia cespitosa | GB, VC46 Cardiganshire, Aberystwyth | Yudhister Singh | Yudhister Singh | 4/10/1961 | ABS | 8/2/2009 |
| + | Deschampsia cespitosa | GB, VC87 West Perthshire, Menteith Hills | Richard Henry Yapp | | 7/1907 | ABS | 8/2/2009 |
| + | Deschampsia cespitosa | | Edmund Gilbert Baker | Charles Edgar Salmon | | ABS | 8/2/2009 |
| + | Deschampsia flexuosa | GB, VC18 South Essex, Epping Forest | D A J Little | | 8/6/1947 | ABS | 8/2/2009 |
| + | Deschampsia flexuosa | GB, VC2 East Cornwall, Fraddon Down | Chambre Corker Vigurs | Chambre Corker Vigurs | | ABS | 8/2/2009 |
| + | Deschampsia flexuosa | GB, VC57 Derbyshire, Monsal Dale | Philip Frank Wareing | | 1947 | ABS | 8/2/2009 |
| + | Diplotaxis muralis | GB, VC23 Oxfordshire, Oxford | George Claridge Druce | William Hunt Painter | 6/1893 | ABS | 28/1/2009 |
| + | Diplotaxis tenuifolia | GB, VC46 Cardiganshire, Tanybwlch | Beti-wyn Jenkins | | 10/1962 | ABS | 20/1/2009 |
| + | Dipsacus pilosus | GB, VC36 Herefordshire, Much Marcle | Eleonora Armitage | | 8/1902 | ABS | 23/1/2009 |
| + | Draba muralis | GB, VC5 South Somerset, Combe Beacon,near Chard | Harold Downes | Watson Botanical Exchange Club
Harold Stuart Thompson | 5/1922 | BIRM | 20/2/2009 |
| + | Draba muralis | GB, VC6 North Somerset, Mendip Hills | Harold Stuart Thompson | Harold Stuart Thompson | 26/6/1924 | BIRM | 20/2/2009 |
| + | Draba muralis | GB, VC57 Derbyshire, Dovedale | D A J Little | | 23/5/1949 | ABS | 14/3/2009 |
| + | Dryas octopetala | GB, VC90 Angus, Caenlochan Glen | Edward Charles Wallace | Edward Charles Wallace
Harold Stuart Thompson | 7/7/1935 | BIRM | 10/4/2009 |
| + | Dryas octopetala | GB, VC64 Mid-west Yorkshire, Arncliffe Clowder | John Tatham | Harold Stuart Thompson
Thomas Clark | 7/1844 | BIRM | 10/4/2009 |
| + | Dryopteris filix-mas agg | GB, VC6 North Somerset, Tyntesfield Plantation | Harold Stuart Thompson | Harold Stuart Thompson | 14/10/1918 | BIRM | 12/2/2009 |
| + | Echium plantagineum | GB, VC113 Channel Islands, Saint Brelade's Bay | Charles Bailey | Augustin Ley | 15/8/1867 | BIRM | 3/5/2009 |
| + | Echium vulgare | GB, VC2 East Cornwall, Bodmin Road Station | Harold Stuart Thompson | Harold Stuart Thompson | 8/1898 | BIRM | 12/4/2009 |
| + | Echium vulgare | GB, VC60 West Lancashire, Saint Anne's on the-Sea | Charles Bailey | Charles Bailey | 29/8/1908 | BIRM | 3/4/2009 |
| + | Echium vulgare | GB, VC17 Surrey, Warlingham | | Charles Bailey
Eyre Champion de Crespigny | | BIRM | 5/4/2009 |
| + | Eleocharis palustris | GB, VC49 Caernarvonshire, Snowdon | | George Stephen West | 8/1879 | BIRM | 7/4/2009 |
| + | Eleogiton fluitans | IE, VCH28 Co. Sligo, Mullaghmore | John Thomas Irvine Boswell-Syme | Botanical Society of London
Harold Stuart Thompson
John Thomas Irvine Boswell-Syme
Thomas Clark | 1846 | BIRM | 14/3/2009 |
| + | Elodea canadensis | GB, VC29 Cambridgeshire, New Bedford River | Richard Henry Yapp | | 7/1908 | ABS | 20/2/2009 |
| + | Elodea canadensis | GB, VC63 South-west Yorkshire, Frizinghall | William West | George Stephen West
William West | 6/1877 | BIRM | 17/3/2010 |
| + | Elymus caninus | GB, VC47 Montgomeryshire, Melin y ddol | Andrew David Quentin Agnew | | 8/7/1998 | ABS | 13/2/2009 |
| + | Elymus caninus | | Fraser | | | ABS | 13/2/2009 |
| + | Elymus caninus | | Fraser | William Hunt Painter | | ABS | 13/2/2009 |
| + | Elymus pungens | GB, VC73 Kirkcudbrightshire, Rascarrel Bay | M Hildred Bigwood | | 7/1972 | ABS | 28/1/2009 |
| + | Elymus pungens | GB, VC41 Glamorganshire, Oxwich | M Feeney | | 14/9/1969 | ABS | 13/2/2009 |
| + | Elymus repens | GB, VC59 South Lancashire, Ashton-under-Lyne | William Isaac Hannan | William Hunt Painter | 6/1876 | ABS | 13/2/2009 |
| + | Elymus repens | GB, VC6 North Somerset, Bishport | William Hunt Painter | | 7/1881 | ABS | 13/2/2009 |
| + | Elytrigia juncea | GB, VC45 Pembrokeshire, Freshwater East | J H Croft | | 20/7/1959 | ABS | 28/1/2009 |
| + | Elytrigia repens | GB, VC9 Dorset, Weymouth | Charles Smith Nicholson | Charles Smith Nicholson | 18/7/1905 | ABS | 13/2/2009 |
| + | Elytrigia repens | GB, VC28 West Norfolk, Swaffham | Douglas Montague Heath | Douglas Montague Heath | 20/6/1916 | BIRM | 9/3/2010 |
| + | Empetrum nigrum | GB, VC63 South-west Yorkshire, Diggle | William Hunt Painter | | 5/1879 | ABS | 4/2/2009 |
| + | Epilobium obscurum | GB, VC69 Westmorland, Langdale | Augustin Ley | Augustin Ley | 27/8/1871 | BIRM | 30/4/2009 |
