| + | Acer pseudoplatanus | GB, VC6 North Somerset, Bourton Combe | Harold Stuart Thompson | Harold Stuart Thompson | 14/6/1919 | BIRM | 17/7/2008 |
| + | Acer pseudoplatanus | GB, VC38 Warwickshire, Solihull | George Stephen West | George Stephen West | 5/1907 | BIRM | 29/10/2008 |
| + | Acer pseudoplatanus | GB, VC63 South-west Yorkshire, Bradford | William West | George Stephen West
William West | 1878 | BIRM | 29/10/2008 |
| + | Acer pseudoplatanus | GB, VC30 Bedfordshire, Moggerhagger | William Hillhouse | | 7/6/1876 | BIRM | 7/12/2008 |
| + | Achillea millefolium | GB, VC62 North-east Yorkshire, Whitby | Charles Bailey | Charles Bailey | 18/7/1875 | MANCH | 29/11/2007 |
| + | Aconitum anglicum | GB, VC40 Shropshire, Caynham | Richard Charles L'Estrange Burges | | 25/7/1937 | BIRM | 15/3/2012 |
| + | Aconitum napellus | GB, VC40 Shropshire, Ludlow | William Hunt Painter | William Hunt Painter | 14/7/1897 | SHYB | 7/7/2007 |
| + | Acorus calamus | GB, VC29 Cambridgeshire, Cambridge Botanic Gardens | Reginald Henry Goode | | 25/7/1898 | ABS | 28/10/2007 |
| + | Acorus calamus | GB, VC30 Bedfordshire, Flitwick | Mary Ann Brooks | | | BIRM | 17/7/2008 |
| + | Acorus calamus | GB, VC23 Oxfordshire, Oxford | | Augustin Ley | | BIRM | 21/12/2008 |
| + | Actaea spicata | GB, VC64 Mid-west Yorkshire, Malham | William West | William West | 6/1910 | BIRM | 15/1/2009 |
| + | Actaea spicata | GB, VC64 Mid-west Yorkshire, Ribblehead | William West | William West | 7/1909 | BIRM | 15/1/2009 |
| + | Actaea spicata | GB, VC64 Mid-west Yorkshire, Malham | Rachel Ford Thompson | Botanical Exchange Club of The British Isles
Augustin Ley
Henry & James Groves | 25/7/1890 | BIRM | 15/1/2009 |
| + | Actaea spicata | GB, VC64 Mid-west Yorkshire, Moughton Fell | William West | George Stephen West
William West | 11/6/1889 | BIRM | 15/1/2009 |
| + | Adiantum capillus-veneris | IE, VCH9 Co. Clare, Aran Islands | | George Stephen West | 7/1891 | BIRM | 31/7/2008 |
| + | Aethusa cynapium | GB, VC35 Monmouthshire, Pontypool | J P Thomas | | 24/7/1959 | ABS | 26/2/2008 |
| + | Aethusa cynapium | GB, VC20 Hertfordshire, Barnet | | | 4/9/1967 | ABS | 10/8/2008 |
| + | Aethusa cynapium | GB, VC46 Cardiganshire, Aberystwyth | O J B | | 7/1961 | ABS | 2/12/2008 |
| + | Agrimonia eupatoria | GB, VC16 West Kent, Cliffe Woods, Rochester | M J Kearsey | | 12/8/1959 | ABS | 1/12/2007 |
| + | Agrimonia eupatoria | GB, VC45 Pembrokeshire, Freshwater East | J H Croft | | 20/7/1959 | ABS | 18/7/2008 |
| + | Agrimonia eupatoria | GB, VC19 North Essex, Bush End | Douglas Montague Heath | Douglas Montague Heath | 15/7/1901 | BIRM | 29/12/2008 |
| + | Agrimonia procera | GB, VC55 Leicestershire, Osbaston | Jane Vernon | | 7/8/1964 | ABS | 5/7/2007 |
| + | Agrostemma githago | GB, VC62 North-east Yorkshire, Ayton | William A Mudd | George Stephen West | 1852 | BIRM | 30/7/2008 |
| + | Agrostemma githago | GB, VC45 Pembrokeshire, Llanwnda | Augustin Ley | Augustin Ley | 20/8/1903 | BIRM | 16/10/2008 |
| + | Agrostis capillaris | GB, VC21 Middlesex, Stanmore | Fiona M Audus | | 19/7/1967 | ABS | 3/7/2008 |
| + | Agrostis capillaris | GB, VC36 Herefordshire, Sellack | Augustin Ley | Augustin Ley | 1865 | BIRM | 16/2/2010 |
| + | Agrostis curtisii | GB, VC9 Dorset, Moreton Heath | James Walter White | | 25/7/1884 | ABS | 28/2/2008 |
| + | Agrostis gigantea | GB, VC3 South Devon, Newton Abbot | William Hunt Painter | William Hunt Painter | 11/8/1882 | ABS | 9/3/2009 |
| + | Agrostis gigantea | GB, VC55 Leicestershire, Misterton | Augustin Ley | Augustin Ley | 2/8/1882 | BIRM | 13/2/2010 |
| + | Agrostis gigantea | GB, VC38 Warwickshire, Whitnash | Robert Large Baker | Botanical Exchange Club of The British Isles
Augustin Ley | 8/1882 | BIRM | 1/4/2010 |
| + | Agrostis stolonifera | GB, VC46 Cardiganshire, Pen Dam Lake | C Mordecai | | 19/8/1964 | ABS | 28/2/2008 |
| + | Agrostis stolonifera | IE, VCH40 Co. Londonderry, Toom Bridge | George Claridge Druce | Charles Edgar Salmon | 1898 | ABS | 30/7/2008 |
| + | Agrostis stolonifera | GB, VC6 North Somerset, Burnham | Harold Stuart Thompson | Harold Stuart Thompson | 5/7/1886 | BIRM | 3/3/2010 |
| + | Alchemilla monticola | GB, VC17 Surrey, Reigate Cultivated
GB, VC66 County Durham, Teesdale | Alfred James Wilmott
Charles Edgar Salmon | Watson Botanical Exchange Club
Charles Edgar Salmon
Job Edward Lousley | 20/5/1926 | SLBI | 18/5/2012 |
| + | Alisma lanceolatum | GB, VC40 Shropshire, Berwick Wharf | I Haig-Brown | | 3/8/1959 | ABS | 29/2/2008 |
| + | Alisma plantago-aquatica | GB, VC37 Worcestershire, Droitwich | John Norton Mills | John Norton Mills | 2/8/1950 | MANCH | 2/12/2007 |
| + | Alisma plantago-aquatica | GB, VC11 South Hampshire, Brockenhurst | Douglas Montague Heath | Douglas Montague Heath | 20/7/1910 | BIRM | 10/2/2010 |
| + | Alisma plantago-aquatica | GB, VC19 North Essex, Kirby le Soken | Douglas Montague Heath | Douglas Montague Heath | 10/9/1921 | BIRM | 10/2/2010 |
| + | Alliaria petiolata | GB, VC46 Cardiganshire, Aberystwyth | R F Uglow | | | ABS | 25/10/2008 |
| + | Allium schoenoprasum | GB, VC1 West Cornwall, Lizard | Harold Stuart Thompson | Harold Stuart Thompson | 6/1888 | BIRM | 23/2/2010 |
| + | Allium vineale | GB, VC6 North Somerset, Bishport | | George Stephen West | 4/7/1881 | BIRM | 10/2/2010 |
| + | Alopecurus bulbosus | GB, VC13 West Sussex, Lavant | Rowland John Burdon | Watson Botanical Exchange Club
Harold Stuart Thompson | 28/5/1917 | BIRM | 9/3/2010 |
| + | Alopecurus bulbosus | GB, VC13 West Sussex, Lavant | Rowland John Burdon | Watson Botanical Exchange Club
Harold Stuart Thompson
Joseph Edward Little | 5/1915 | BIRM | 9/3/2010 |
| + | Alyssum alyssoides | GB, VC37 Worcestershire, Kidderminster | John Fraser | Botanical Society & Exchange Club of The British Isles
Augustin Ley
Robert Large Baker | 3/6/1875 | BIRM | 15/1/2010 |
| + | Amaranthus albus | GB, VC60 West Lancashire, Preston | James Alfred Wheldon | Botanical Exchange Club of The British Isles
Augustin Ley | 8/1900 | BIRM | 16/10/2008 |
| + | Amaranthus blitum | GB, VC26 West Suffolk, Stoke by Nayland | John Durbin Gray | | 7/1889 | ABS | 5/7/2007 |
| + | Amaranthus blitum | GB, VC18 South Essex, Dagenham | Philip Henry Cooke | | 9/1939 | SLBI | 11/7/2013 |
| + | Amaranthus blitum | GB, VC30 Bedfordshire, Flitton | Job Edward Lousley | Job Edward Lousley | 1/9/1951 | SLBI | 11/7/2013 |
| + | Amaranthus blitum | GB, VC30 Bedfordshire, Flitwick | Job Edward Lousley | Job Edward Lousley | 3/9/1951 | SLBI | 11/7/2013 |
| + | Amaranthus retroflexus | GB, VC38 Warwickshire, Kenilworth | Henry Bromwich | Botanical Exchange Club of The British Isles
Augustin Ley | 9/1874 | BIRM | 27/12/2008 |
| + | Amaranthus retroflexus | GB, VC17 Surrey, Kew | George Nicholson | Augustin Ley | 9/1878 | BIRM | 27/12/2008 |
| + | Ammophila arenaria | GB, VC28 West Norfolk, Burnham Overy | Muriel Onslow | | | BIRM | 13/2/2010 |
| + | Anagallis arvensis | GB, VC35 Monmouthshire, Monmouth | Augustin Ley | Augustin Ley | 5/8/1909 | BIRM | 19/10/2008 |
| + | Anagallis tenella | GB, VC2 East Cornwall, Egloskerry | William Wise | | 29/7/1884 | LAUS | 1/3/2008 |
| + | Anagallis tenella | GB, VC64 Mid-west Yorkshire, Addle Bog | | George Stephen West | 1876 | BIRM | 2/12/2008 |
| + | Anchusa arvensis | GB, VC46 Cardiganshire, Aberystwyth | | William Hunt Painter | 7/1891 | BIRM | 27/7/2008 |
| + | Anchusa arvensis | GB, VC63 South-west Yorkshire, Doncaster | William West | George Stephen West | 16/7/1910 | BIRM | 10/3/2009 |
| + | Anemone nemorosa | GB, VC30 Bedfordshire, Flitwick | Mary Ann Brooks | | 1848 | BIRM | 17/3/2009 |
| + | Anemone ranunculoides | Cultivated | Augustin Ley | Augustin Ley | 15/4/1871 | BIRM | 7/5/2009 |
| + | Anemone ranunculoides | GB, VC24 Buckinghamshire, Calverton Park | George Claridge Druce | Augustin Ley | 4/1878 | BIRM | 7/5/2009 |
| + | Anisantha madritensis | GB, VC34 West Gloucestershire, Clifton | Harold Stuart Thompson | Harold Stuart Thompson | 30/5/1903 | BIRM | 16/2/2010 |
| + | Anisantha sterilis | GB, VC17 Surrey, Burford Bridge | Charles Smith Nicholson | North London Natural History Society Local Herbarium
Charles Smith Nicholson | 2/6/1901 | ABS | 28/2/2008 |
| + | Antennaria dioica | GB, VC85 Fifeshire, Pilmour Links, Saint Andrews | Charles Bailey | Charles Bailey | 7/8/1882 | MANCH | 29/11/2007 |
| + | Antennaria dioica | GB, VC64 Mid-west Yorkshire, Malham Tarn | | William Wilson | 6/7/1838 | MANCH | 5/4/2010 |
| + | Anthemis cotula | GB, VC49 Caernarvonshire, Great Orme's Head | William Hunt Painter | William Hunt Painter | 15/8/1881 | ABS | 30/7/2008 |
| + | Anthriscus sylvestris | GB, VC13 West Sussex, Saint Leonard's | | | 4/1862 | ABS | 8/3/2009 |
| + | Anthriscus sylvestris | GB, VC20 Hertfordshire, Hitchin | | | 5/1868 | ABS | 8/3/2009 |
| + | Apium inundatum | GB, VC19 North Essex, Hatfield Forest | Douglas Montague Heath | Douglas Montague Heath | 21/6/1912 | BIRM | 1/4/2010 |
| + | Apium inundatum | GB, VC19 North Essex, Hatfield Forest | Douglas Montague Heath | Douglas Montague Heath | 25/6/1912 | BIRM | 1/4/2010 |
| + | Apium nodiflorum | GB, VC36 Herefordshire, Dadnor | Eleonora Armitage | Eleonora Armitage | 7/1905 | ABS | 10/8/2008 |
| + | Apium nodiflorum | GB, VC37 Worcestershire, Purshull Green | Richard Charles L'Estrange Burges | | 21/8/1921 | BIRM | 25/3/2012 |
| + | Arabidopsis thaliana | GB, VC6,VC34, Bristol | | Charles Bailey | | BIRM | 20/7/2009 |
| + | Arabis ciliata | GB, VC69 Westmorland, Kendal,Scout Scar | | William Hunt Painter | 5/1864 | ABS | 1/12/2007 |
| + | Arabis petraea | GB, VC92 South Aberdeenshire, Glen luibeg | Henry Elliott Fox | William Hunt Painter | 23/7/1885 | ABS | 14/11/2008 |
| + | Arabis petraea | GB, VC88 Mid Perthshire, Ben Laoigh [Ben Lui] | George Claridge Druce | Botanical Exchange Club of The British Isles
Augustin Ley | 8/1888 | BIRM | 13/2/2010 |
| + | Arabis petraea | GB, VC98 Argyllshire, Ben a' Chliebh | William Andrew Shoolbred | Botanical Exchange Club of The British Isles
Augustin Ley
William Andrew Shoolbred | 5/8/1893 | BIRM | 13/2/2010 |
| + | Arabis petraea | GB, VC88 Mid Perthshire, Ben Laoigh [Ben Lui] | James Cosmo Melvill | Augustin Ley
James Cosmo Melvill | 31/7/1891 | BIRM | 13/2/2010 |
| + | Arctium minus | GB, VC46 Cardiganshire, Aberystwyth | O J B | | 7/1961 | ABS | 30/11/2007 |
| + | Arenaria serpyllifolia var. vicidula | GB, VC7 North Wiltshire, Winsley | Harold Stuart Thompson | Harold Stuart Thompson | 3/6/1922 | BIRM | 11/4/2009 |
| + | Arenaria serpyllifolia var. vicidula | GB, VC6 North Somerset, Steep Holm | Thomas Clark | Harold Stuart Thompson
Thomas Clark | 1836 | BIRM | 11/4/2009 |
| + | Aristolochia clematitis | GB, VC23 Oxfordshire, Godstow | Lloyd | William Groves Perry | 7/1835 | ABS | 30/11/2007 |
| + | Aristolochia clematitis | GB, VC27 East Norfolk, Norwich | Dorothy Adlington Cadbury | | 23/8/1955 | BIRM | 19/10/2008 |
| + | Aristolochia clematitis | GB, VC113 Channel Islands, Jersey Cultivated | | George Stephen West | | BIRM | 21/12/2008 |
| + | Aristolochia clematitis | GB, VC62 North-east Yorkshire, Whitby | William A Mudd | George Stephen West | 8/1852 | BIRM | 28/12/2008 |
| + | Armeria maritima | GB, VC13 West Sussex, Shoreham | | Henry Haselfoot Haines | 27/6/1887 | ABS | 25/2/2008 |
| + | Armeria maritima | GB, VC71 Isle of Man, Calf Sound | Richard Henry Yapp | | 10/7/1897 | ABS | 25/2/2009 |
| + | Armeria maritima | GB, VC49 Caernarvonshire, Clogwyn Du'r Arddu | Richard Charles L'Estrange Burges | | 22/6/1935 | BIRM | 25/3/2012 |
| + | Armeria plantaginea | GB, VC113 Channel Islands, Les Quennevais | Richard Charles L'Estrange Burges | | 6/9/1948 | BIRM | 16/3/2012 |
| + | Armoracia rusticana | GB, VC64 Mid-west Yorkshire, Giggleswick | William West | George Stephen West | 6/1904 | BIRM | 10/2/2010 |
| + | Arrhenatherum elatius | GB, VC34 West Gloucestershire, Durdham Down | Zoe Mossman | | 8/1970 | ABS | 28/2/2008 |
| + | Arrhenatherum elatius | VC49, Pont Aberglaslyn | Augustin Ley | Augustin Ley | 12/8/1886 | BIRM | 9/3/2010 |
| + | Artemisia absinthium | GB, VC49 Caernarvonshire, Great Orme's Head | | William Hunt Painter | 15/8/1881 | ABS | 6/8/2008 |
| + | Artemisia vulgaris | GB, VC67,VC68, Howdon on Tyne | W H Brown | Botanical Exchange Club of The British Isles
William Hunt Painter | 10/1884 | ABS | 11/10/2008 |
| + | Asarum europaeum | GB, VC8 South Wiltshire, Redlynch | | Arthur William Graveson | 5/1920 | SLBI | 9/1/2014 |
| + | Asparagus officinalis subsp. prostratus | GB, VC1 West Cornwall, Cadgwith | Charles Alexander Johns | | 8/1847 | BON | 24/11/2011 |
| + | Asplenium adiantum-nigrum | IE, VCH2 North Kerry, Muckross | Augustin Ley | Augustin Ley | 23/8/1887 to 24/8/1887 | BIRM | 31/7/2008 |
| + | Asplenium adiantum-nigrum | IE, VCH2 North Kerry, Muckross | Augustin Ley | Augustin Ley | 23/8/1887 | BIRM | 8/8/2008 |
| + | Asplenium adiantum-nigrum | IE, VCH9 Co. Clare, Burren | William West | George Stephen West
William West | 7/1890 | BIRM | 11/8/2008 |
| + | Asplenium trichomanes | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 8/9/1959 | ABS | 16/1/2008 |
| + | Asplenium trichomanes subsp. quadrivalens | GB, VC49 Caernarvonshire, Great Ormes Head | R O Morris | | 9/1959 | ABS | 16/1/2008 |
| + | Asplenium trichomanes subsp. quadrivalens | GB, VC69 Westmorland, Clappersgate | Richard Henry Yapp | | 25/8/1898 | ABS | 16/1/2008 |
| + | Asplenium trichomanes subsp. quadrivalens | GB, VC41 Glamorganshire, Pennard | A P Roach | | 10/7/1959 | ABS | 16/1/2008 |
| + | Aster tripolium | GB, VC41 Glamorganshire, Oxwich | A P Roach | | 15/8/1959 | ABS | 24/1/2009 |
| + | Astragalus danicus | GB, VC29 Cambridgeshire, Gog Magog Hills | Walter Stiles | Walter Stiles | 26/5/1907 | BIRM | 3/7/2008 |
| + | Astragalus danicus | GB, VC90 Angus, Sands of Barry | William Gardiner | William Gardiner
William Hillhouse | 6/1845 | BIRM | 30/10/2008 |
| + | Astragalus danicus | GB, VC29 Cambridgeshire, Gog Magog | William West | George Stephen West
William West | 3/6/1894 | BIRM | 30/10/2008 |
| + | Astragalus glycyphyllos | GB, VC34 West Gloucestershire, Henbury | Harold Stuart Thompson | Harold Stuart Thompson | 7/1916 | BIRM | 8/6/2008 |
| + | Astrantia major | GB, VC40 Shropshire, Stokesay Wood | Allan Octavian Hume | Allan Octavian Hume | 21/8/1905 | SLBI | 16/8/2012 |
| + | Athyrium filix-femina | GB, VC23 Oxfordshire, Oxford Cultivated | George Claridge Druce | Augustin Ley | | BIRM | 11/8/2008 |
| + | Atriplex littoralis | GB, VC28 West Norfolk, Hunstanton | Richard Henry Yapp | | | ABS | 28/10/2007 |
| + | Atriplex portulacoides | GB, VC28 West Norfolk, Hunstanton | Richard Henry Yapp | | | ABS | 17/11/2008 |
| + | Atriplex prostrata | GB, VC44 Carmarthenshire, Llanelli | R Anthony Jenkins | | 3/8/1961 | ABS | 3/1/2009 |
| + | Avena fatua | GB, VC38 Warwickshire, Warwick | | Elizabeth Anne Lomax | 9/1889 | ABS | 18/1/2009 |
| + | Baldellia ranunculoides | GB, VC70 Cumberland, Windermere | | Robert Large Baker | 8/1875 | BIRM | 29/12/2008 |
| + | Baldellia ranunculoides | GB, VC6 North Somerset, Walton Moor | Victor Samuel Summerhayes | | 8/7/1919 | K | 26/9/2012 |
| + | Baldellia ranunculoides | GB, VC84 West Lothian, Philipstoun Loch | | | 7/1836 | E | 9/4/2015 |
| + | Ballota nigra subsp. meridionalis | GB, VC24 Buckinghamshire, Little Marlow | | William Hunt Painter | 6/1865 | ABS | 15/8/2008 |
| + | Barbarea stricta | GB, VC17 Surrey, Kew | | William Hillhouse | 6/1874 | BIRM | 23/2/2010 |
| + | Barbarea verna | GB, VC34 West Gloucestershire, Frenchay
GB, VC6 North Somerset, Saint Vincent's Rocks | Harold Stuart Thompson | Harold Stuart Thompson | 5/1888 | BIRM | 13/8/2008 |
| + | Barbarea vulgaris | GB, VC37 Worcestershire, Arley Castle, Bewdley | Joseph Hesselgrave Thompson | William Hunt Painter | 7/6/1879 | ABS | 17/11/2008 |
| + | Betula alba | GB, VC30 Bedfordshire, Flitwick | Mary Ann Brooks | | | BIRM | 6/2/2009 |
| + | Betula pendula x pubescens = B. x aurata | GB, VC35 Monmouthshire, Llanthony | Augustin Ley | Augustin Ley | 30/8/1876 | BIRM | 23/8/2008 |
| + | Betula pubescens subsp. pubescens | GB, VC64 Mid-west Yorkshire, Pateley Bridge | Douglas Montague Heath | Douglas Montague Heath | 4/8/1925 | BIRM | 21/7/2008 |
| + | Betula pubescens x nana = B. x intermedia | GB, VC108 West Sutherland, Ben Laoghal | Edward Shearburn Marshall | Augustin Ley | 7/8/1900 | BIRM | 23/8/2008 |
| + | Bidens cernua | GB, VC11 South Hampshire, Cadnam Bog | Henry Haselfoot Haines | | 9/9/1893 | ABS | 18/1/2009 |
| + | Bidens tripartita | GB, VC38 Warwickshire, Moseley | William Hunt Painter | William Hunt Painter | 10/1867 | ABS | 18/1/2009 |
| + | Blechnum spicant | GB, VC5 South Somerset, Porlock | Harold Stuart Thompson | Harold Stuart Thompson | 7/1922 | BIRM | 8/5/2008 |
| + | Blechnum spicant | GB, VC5 South Somerset, Halswell | Thomas Clark | Harold Stuart Thompson | 18/6/1824 | BIRM | 8/5/2008 |
| + | Blechnum spicant | GB, VC17 Surrey, Shere | Walter Stiles | | 1/7/1909 | BIRM | 31/7/2008 |
| + | Blechnum spicant | GB, VC11 South Hampshire, New Forest | | William Henry Wilkinson | 8/1878 | BIRM | 31/7/2008 |
| + | Blysmus compressus | GB, VC25 East Suffolk, Bungay | | Philip Brookes Mason | | BON | 13/10/2010 |
| + | Blysmus compressus | GB, VC34 West Gloucestershire, Marshfield | Robert Withers | Arthur Bennett
M Bowen
William Booth Waterfall | 9/1848 | K | 6/12/2012 |
| + | Blysmus rufus | GB, VC109 Caithness, Wick River | | | 6/8/1885 | ABS | 26/10/2007 |
| + | Bolboschoenus maritimus | GB, VC62 North-east Yorkshire, Coatham | William A Mudd | George Stephen West | 8/1851 | BIRM | 18/11/2008 |
| + | Borago officinalis | GB, VC45 Pembrokeshire, Tenby | Edwin Bernard Benson | | 7/1892 | SHYB | 7/7/2007 |
| + | Borago officinalis | GB, VC2 East Cornwall, East Looe | Langley Kitching | Langley Kitching | 13/7/1881 | BIRM | 30/7/2008 |
| + | Borago officinalis | GB, VC1 West Cornwall, Saint Buryan | | George Stephen West | 8/1875 | BIRM | 5/8/2008 |
| + | Borago officinalis | GB, VC36 Herefordshire, Great Doward | Augustin Ley | Augustin Ley | 11/6/1888 | BIRM | 13/8/2008 |
| + | Borago officinalis | GB, VC36 Herefordshire, Avenbury | Archer Shepherd | Douglas Montague Heath | | BIRM | 5/9/2008 |
| + | Brachypodium pinnatum | GB, VC34 West Gloucestershire, Stroud, Amberley | Charles Smith Nicholson | Charles Smith Nicholson | 25/6/1910 | ABS | 28/2/2008 |
| + | Brachypodium pinnatum | GB, VC38 Warwickshire, Milverton | Henry Bromwich | Botanical Exchange Club of The British Isles
Charles Bailey | 6/1887 | BIRM | 11/2/2010 |
| + | Brachypodium sylvaticum | GB, VC49 Caernarvonshire, Y Ffor | R L Griffith | | 12/8/1961 | ABS | 28/2/2008 |
| + | Brassica napus | GB, VC36 Herefordshire, Sellack Cultivated | Augustin Ley | Augustin Ley | 17/7/1901 | BIRM | 27/2/2010 |
| + | Brassica napus | GB, VC36 Herefordshire, Sellack Cultivated | Augustin Ley | Augustin Ley | 17/7/1901 | BIRM | 27/2/2010 |
| + | Briza media | GB, VC14 East Sussex, Eastbourne | | | 7/1883 | ABS | 18/1/2009 |
| + | Briza media | GB, VC38 Warwickshire, Sutton Park | George Stephen West | | 3/7/1907 | BIRM | 19/3/2010 |
| + | Briza media | GB, VC14 East Sussex, Lewes | Charles Ottley Groom | Mantua And Montferrat | | BON | 14/10/2014 |
| + | Briza minor | GB, VC11 South Hampshire, Hythe | Horace Pearce | William Hunt Painter | 25/8/1882 | ABS | 28/2/2008 |
| + | Briza minor | GB, VC1 West Cornwall, Trevemper | A E Vigurs | Chambre Corker Vigurs | 7/7/1905 | ABS | 29/7/2008 |
| + | Bromus hordeaceus | GB, VC46 Cardiganshire, Ynyslas Dunes | John P Savidge | | 6/1980 | ABS | 14/1/2008 |
| + | Bromus hordeaceus subsp. thominei | GB, VC59 South Lancashire, Aintree | James Alfred Wheldon | Botanical Exchange Club of The British Isles
Augustin Ley
James Alfred Wheldon | 30/7/1907 | BIRM | 10/2/2010 |
| + | Bromus mollis | GB, VC113 Channel Islands, Jersey | Augustin Ley | Augustin Ley | 24/7/1885 | BIRM | 6/9/2009 |
| + | Bromus secalinus | GB, VC66 County Durham, Hartlepool | Henry Elliott Fox | William Hunt Painter | 8/1876 | ABS | 29/2/2008 |
| + | Bupleurum baldense | GB, VC3 South Devon, Torquay | S L | Botanical Exchange Club of The British Isles
George Stephen West
Thomas Bruges Flower | 6/1879 | BIRM | 6/8/2009 |
| + | Bupleurum fruticosum | GB, VC37 Worcestershire, Wynds Point | Richard Charles L'Estrange Burges | | 3/7/1943 | BIRM | 16/3/2012 |
| + | Bupleurum subovatum | GB, VC46 Cardiganshire, Borth | Andrew David Quentin Agnew | | 15/9/1973 | ABS | 28/10/2007 |
| + | Butomus umbellatus | GB, VC49 Caernarvonshire, Llandudno | | Charles Bailey | 8/1869 | MANCH | 27/11/2007 |
| + | Cakile maritima | GB, VC49 Caernarvonshire, Bangor | | William Hunt Painter | 26/7/1881 | ABS | 26/10/2007 |
| + | Callitriche obtusangula | GB, VC17 Surrey, Wimbledon | Philip Henry Cooke | | | SLBI | 20/7/2012 |
| + | Callitriche stagnalis | GB, VC20 Hertfordshire, Welwyn | Joseph Edward Little
William Robert Sherrin | | 6/1925 | SLBI | 20/7/2012 |
| + | Callitriche truncata | GB, VC113 Channel Islands, Guernsey | Frederic Henry Ward | George Nicholson | 1886 | SLBI | 20/7/2012 |
| + | Calluna vulgaris | GB, VC46 Cardiganshire, Goginan | L D | | 30/9/1931 | ABS | 5/7/2007 |
| + | Calluna vulgaris | GB, VC69 Westmorland, Barbon | | William Hunt Painter | 8/1862 | ABS | 28/2/2008 |
| + | Caltha palustris var. guerangerii | GB, VC17 Surrey, Gomshall Swamp | William Hadden Beeby | Botanical Exchange Club of The British Isles
Charles Bailey | 21/6/1885 | MANCH | 31/3/2011 |
| + | Calystegia sepium | GB, VC41 Glamorganshire, Maesteg | Ann M Hodges | | 10/7/1959 | ABS | 30/11/2007 |
| + | Calystegia sepium | GB, VC41 Glamorganshire, Swansea | G W J | | 1961 | ABS | 18/1/2009 |
| + | Campanula glomerata | GB, VC91 Kincardineshire, Saint Cyrus | M Hildred Bigwood | | 9/1972 | ABS | 7/8/2008 |
| + | Campanula rapunculoides | GB, VC63 South-west Yorkshire, Pontefract | William West | George Stephen West | 7/1906 | BIRM | 21/7/2008 |
| + | Campanula rapunculoides | GB, VC30 Bedfordshire, Flitwick | Mary Ann Brooks | | | BIRM | 1/8/2008 |
| + | Campanula rotundifolia var. lancifolia | GB, VC49 Caernarvonshire, Carnedd Dafydd | Augustin Ley | Botanical Exchange Club of The British Isles
William Hunt Painter | 29/8/1887 | ABS | 28/2/2008 |
| + | Campanula rotundifolia | GB, VC37 Worcestershire, Northfield | | George Stephen West | 4/8/1888 | BIRM | 30/7/2008 |
| + | Campanula rotundifolia | GB, VC69 Westmorland, Howton | Douglas Montague Heath | Douglas Montague Heath | 20/7/1938 | BIRM | 10/3/2009 |
| + | Campanula trachelium | GB, VC15 East Kent, Dover | R | | 8/1878 | ABS | 29/2/2008 |
| + | Campanula trachelium | GB, VC4 North Devon, Rockford | Douglas Montague Heath | Douglas Montague Heath | 5/8/1901 | BIRM | 18/11/2008 |
| + | Campanula trachelium | GB, VC28 West Norfolk, Swaffham | Douglas Montague Heath | Douglas Montague Heath | 7/1914 | BIRM | 18/11/2008 |
| + | Cardamine amara | GB, VC39 Staffordshire, Madeley | John William Daltry | | 1840 | ABS | 5/7/2007 |
| + | Cardamine hirsuta | GB, VC34 West Gloucestershire, Corps Cross | | Augustin Ley | 3/5/1850 | BIRM | 18/6/2010 |
| + | Cardamine hirsuta | | | Augustin Ley | 10/6/1850 | BIRM | 18/6/2010 |
| + | Cardamine pratensis | GB, VC21 Middlesex, Pinner | | | 1887 | DBC | 18/7/2013 |
| + | Carex acuta | GB, VC62 North-east Yorkshire, Captain Cook's Monument | William A Mudd | George Stephen West | 6/1853 | BIRM | 16/11/2009 |
| + | Carex aquatilis x nigra = C. x hibernica | GB, VC89 East Perthshire, Glen Shee | Edward Shearburn Marshall | Botanical Exchange Club of The British Isles | 10/7/1906 | ABS | 16/8/2007 |
| + | Carex atrata | GB, VC88 Mid Perthshire, Ben Laoigh [Ben Lui] | Charles Smith Nicholson | Charles Smith Nicholson | 30/7/1909 | ABS | 5/7/2007 |
| + | Carex bigelowii | GB, VC86 Stirlingshire, Ben Lomond | | | 4/7/1844 | ABS | 26/10/2007 |
| + | Carex binervis | GB, VC90 Angus, Caenlochan | Richard Charles L'Estrange Burges | | 25/6/1936 | BIRM | 24/2/2012 |
| + | Carex caryophyllea | GB, VC34 West Gloucestershire, Durdham Down | William Hunt Painter | | 6/1880 | ABS | 23/2/2008 |
| + | Carex caryophyllea | GB, VC34 West Gloucestershire, Clifton Down | Martha Maria Atwood | George Stephen West | 4/1851 | BIRM | 5/3/2009 |
| + | Carex curta | GB, VC62 North-east Yorkshire, Sleddale, Cleveland | William A Mudd | George Stephen West | 6/1852 | BIRM | 1/4/2011 |
| + | Carex depauperata | GB, VC17 Surrey, Godalming | James Backhouse | James Backhouse | | E | 4/5/2016 |
| + | Carex diandra | GB, VC20 Hertfordshire, Broxbourne | William Higgins Coleman | Philip Brookes Mason | | BON | 20/1/2010 |
| + | Carex diandra | GB, VC82 East Lothian, Guillon [Gullane] | Edward Forbes | Mantua And Montferrat | | BON | 15/1/2015 |
| + | Carex echinata | | | James Eustace Bagnall | | ABS | 28/10/2007 |
| + | Carex echinata | GB, VC34 West Gloucestershire, Forest of Dean | | | 1/7/1884 | ABS | 29/2/2008 |
| + | Carex echinata | GB, VC3,VC4 | John Jacob | Mantua And Montferrat | | BON | 14/10/2014 |
| + | Carex echinata | GB, VC41 Glamorganshire, Swansea | Cecil H Buckland | | 6/1851 | BON | 7/8/2015 |
| + | Carex hirta | GB, VC38 Warwickshire, Lillington Wood | | Robert Large Baker | | BIRM | 8/3/2009 |
| + | Carex hostiana | GB, VC42 Breconshire, Llanthony Valley | Augustin Ley | Augustin Ley | 25/8/1880 | BIRM | 15/12/2009 |
| + | Carex humilis | GB, VC8 South Wiltshire, Lark Hill | Richard Charles L'Estrange Burges | | 4/1940 | BIRM | 24/2/2012 |
| + | Carex montana | GB, VC36 Herefordshire, Great Doward Hill | Augustin Ley | Burton Mounsher Watkins | 5/1877 | ABS | 26/10/2007 |
| + | Carex montana | GB, VC14 East Sussex, Waterdown Forest | William Mitten | | | BON | 15/9/2014 |
| + | Carex montana | GB, VC6 North Somerset, Brean Down | | | | BON | 15/9/2014 |
