| + | Sinapis alba | GB, VC1 West Cornwall, Truro | Frederick Hamilton Davey | Allan Octavian Hume | 1/7/1902 | SLBI | 20/2/2011 |
| + | Silene vulgaris subsp. vulgaris | GB, VC13,VC14, Brighton | | Langley Kitching | 27/6/1898 | BIRM | 24/5/2008 |
| + | Silene uniflora | GB, VC1 West Cornwall, Portreath | M Hildred Bigwood | | 4/1973 | ABS | 12/2/2008 |
| + | Silene uniflora | GB, VC69 Westmorland, Isle of Walney | Rowena Mabel Ferguson | | 8/1933 | ABS | 18/2/2008 |
| + | Silene nutans | GB, VC49 Caernarvonshire, Great Ormes Head | Edwin Bernard Benson | | 7/1891 | SHYB | 29/9/2007 |
| + | Silene nutans | GB, VC15 East Kent, Lydd | George Claridge Druce | Botanical Exchange Club of The British Isles
Chambre Corker Vigurs | 7/1904 | ABS | 29/9/2007 |
| + | Silene nutans | GB, VC57 Derbyshire, Dovedale
GB, VC64 Mid-west Yorkshire, Knaresborough | | | 1839 | ABS | 29/9/2007 |
| + | Silene nutans | GB, VC57 Derbyshire, Deepdale | Charles Bailey | William Hunt Painter | 13/7/1905 | ABS | 29/9/2007 |
| + | Silene nutans | GB, VC15 East Kent, Dungeness | Eleonora Armitage | Eleonora Armitage | 6/1905 | ABS | 29/9/2007 |
| + | Silene nutans | GB, VC15 East Kent, Dungeness | Eleonora Armitage | | 1905 | ABS | 29/9/2007 |
| + | Silene nutans | GB, VC49 Caernarvonshire, Llandudno | | William Hunt Painter | 7/1867 | ABS | 29/9/2007 |
| + | Silene nutans | GB, VC50 Denbighshire, Colwyn Bay | Charles Waterfall | Watson Botanical Exchange Club
Charles Waterfall
Charles Edgar Salmon | 7/1900 | ABS | 29/9/2007 |
| + | Silene nutans | GB, VC15 East Kent, Dover | Cartwell | William Hunt Painter | 14/6/1887 | ABS | 29/9/2007 |
| + | Silene nutans | GB, VC113 Channel Islands, Jersey,Greve de Lecq | James Walter White | James Walter White
William Hunt Painter | 6/1894 | ABS | 29/9/2007 |
| + | Silene gallica | GB, VC113 Channel Islands, Grandes Rocques, Guernsey | T C Royle | | 9/7/1898 | SHYB | 16/8/2007 |
| + | Silene gallica | GB, VC45 Pembrokeshire, Tenby | Edwin Bernard Benson | | 7/1892 | SHYB | 16/8/2007 |
| + | Silene gallica | GB, VC1 West Cornwall, Madron | D A J Little | | 3/1/1943 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC1 West Cornwall, Tresco | D A J Little | | 5/1963 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC1 West Cornwall, Scilly Isles,Saint Marys | D A J Little | | 6/1963 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC1 West Cornwall, Madron | D A J Little | | 6/9/1946 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC52 Anglesey, Newborough | | William Hunt Painter | 6/8/1881 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC52 Anglesey, South Stack | William Hunt Painter | William Hunt Painter | 5/7/1889 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC9 Dorset, Swanage | | | 18/8/1912 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC37 Worcestershire, Pedmore | Horace Pearce | William Hunt Painter | 10/1882 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC11 South Hampshire, Hythe | Horace Pearce | William Hunt Painter | 25/8/1882 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC1 West Cornwall, Pendeen | Henry Boyden | William Hunt Painter | 8/1887 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC9 Dorset, Horton | James Walter White | William Hunt Painter | 25/7/1884 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC1 West Cornwall, Mousehole | | William Hunt Painter | 7/1870 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC113 Channel Islands, Jersey,Les Landes | James Walter White | Botanical Exchange Club of The British Isles
James Walter White
William Hunt Painter | 26/5/1898 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC113 Channel Islands, Vale Castle, Guernsey | Margaret Dawber | William Hunt Painter | 9/6/1894 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC36 Herefordshire, Ledbury Cultivated | Spencer Henry Bickham | Chambre Corker Vigurs | 10/8/1905 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC17 Surrey, Springfield | Frederic Henry Ward | William Hunt Painter | 23/6/1889 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC113 Channel Islands, Vale Castle, Guernsey | William Moyle Rogers | Botanical Exchange Club of The British Isles
William Hunt Painter | 7/1897 | ABS | 16/8/2007 |
| + | Silene gallica | GB, VC113 Channel Islands, Jersey,West Mount | James Walter White | Botanical Exchange Club of The British Isles
William Hunt Painter | 25/5/1898 | ABS | 16/8/2007 |
| + | Silene dioica | GB, VC40 Shropshire, Shelton | | Richard de Gylpyn Benson | 24/5/1888 | SHYB | 12/4/2007 |
| + | Silene dioica | GB, VC50 Denbighshire, Llangollen | J Winston Lea | | 10/8/1962 | ABS | 12/2/2008 |
| + | Silene dioica | GB, VC6 North Somerset, Berrow | Augustin Ley | Augustin Ley | 9/9/1910 | BIRM | 8/11/2009 |
| + | Silene dioica | GB, VC1 West Cornwall, Penzance | Augustin Ley | Augustin Ley | 4/7/1883 | BIRM | 13/12/2009 |
| + | Silene conica | GB, VC50 Denbighshire, Colwyn Bay | W E Russell | | 6/1894 | SHYB | 10/3/2007 |
| + | Silene conica | GB, VC27 East Norfolk, Runton | Arthur Bennett | George Stephen West | 7/1879 | BIRM | 27/2/2010 |
| + | Silene conica | GB, VC28 West Norfolk, Croxton | W H Cole | Arthur Waters Preston | 6/1879 | BIRM | 27/2/2010 |
| + | Silene acaulis | GB, VC111 Orkney, Hoy | John Gilbert Baker
John Thomas Irvine Boswell-Syme | George Stephen West | 7/1849 | BIRM | 16/3/2009 |
| + | Silene acaulis | GB, VC88 Mid Perthshire, Ben Lawers | | George Stephen West | | BIRM | 16/3/2009 |
| + | Silaum silaus | GB, VC29 Cambridgeshire, Hardwick Wood | | Leslie John Audus | 19/7/1935 | ABS | 18/2/2008 |
| + | Silaum silaus | GB, VC36 Herefordshire, Colwall | Richard Charles L'Estrange Burges | | 9/1944 | BIRM | 20/2/2011 |
| + | Sibthorpia europaea | GB, VC113 Channel Islands, Jersey, Saint Helier | Henry Elliott Fox | Augustin Ley | 7/1876
1885 | BIRM | 19/5/2008 |
| + | Sibthorpia europaea | GB, VC1 West Cornwall, Kennall Valley | Allan Octavian Hume | Allan Octavian Hume | 14/8/1899 | SLBI | 7/2/2013 |
| + | Sibthorpia europaea | GB, VC2 East Cornwall, Bodmin | Joseph Woods | Allan Octavian Hume
Frederick Townsend | 8/1828 | SLBI | 9/2/2013 |
| + | Sibthorpia europaea | GB, VC3 South Devon, Meavy | | Edward Palmer | 25/7/1836 | SLBI | 9/2/2013 |
| + | Sibbaldia procumbens | GB, VC90 Angus, Glen Clova | Isaac Henry Burkill | Isaac Henry Burkill | 22/6/1895 | SHYB | 16/8/2007 |
| + | Sibbaldia procumbens | GB, VC88 Mid Perthshire, Ben Lawers | R Turner | William Hunt Painter | 18/7/1880 | ABS | 16/8/2007 |
| + | Sibbaldia procumbens | GB, VC88 Mid Perthshire, Tyndrum | | William Hunt Painter | 8/1879 | ABS | 16/8/2007 |
| + | Sibbaldia procumbens | GB, VC105 West Ross & Cromarty, Slioch | Charles Edgar Salmon
Ernest Stanley Salmon | Charles Edgar Salmon
Ernest Stanley Salmon | 1/9/1896 | ABS | 16/8/2007 |
| + | Sibbaldia procumbens | GB, VC28 West Norfolk, East Walton | Douglas Montague Heath | Douglas Montague Heath | 15/5/1916 | BIRM | 18/2/2010 |
| + | Sibbaldia procumbens | GB, VC28 West Norfolk, Cockley Cley | Douglas Montague Heath | Douglas Montague Heath | 22/5/1916 | BIRM | 18/2/2010 |
| + | Sherardia arvensis | GB, VC16 West Kent, Cudham | William Henry Griffin | Allan Octavian Hume | 6/7/1901 | SLBI | 14/11/2012 |
| + | Setaria viridis | GB, VC21 Middlesex, Staines | E Ferguson Shepherd | Watson Botanical Exchange Club
Coslett Herbert Waddell
Harold Stuart Thompson | 10/1890 | BIRM | 15/12/2009 |
| + | Setaria viridis | GB, VC39 Staffordshire, Rugeley | Henry Peter Reader | Watson Botanical Exchange Club
Harold Stuart Thompson | 9/1898 | BIRM | 15/12/2009 |
| + | Serratula tinctoria | GB, VC59 South Lancashire, Speke | J Gibson Penn
John Harbord Lewis | Charles Bailey | 1864 | MANCH | 27/11/2006 |
| + | Serratula tinctoria | GB, VC1 West Cornwall, Kynance Cove | James Cunnack | Charles Bailey | 8/1872 | MANCH | 3/2/2007 |
| + | Serratula tinctoria | GB, VC1 West Cornwall, Kynance Cove | James Cunnack | Charles Bailey | 8/1871 | MANCH | 3/2/2007 |
| + | Serratula tinctoria | GB, VC1 West Cornwall, Kynance | George Horn | Charles Bailey | 8/1873 | MANCH | 3/2/2007 |
| + | Serratula tinctoria | GB, VC44 Carmarthenshire, Pwll | P G Samuel | | 10/8/1961 | ABS | 15/2/2008 |
| + | Seriphidium maritimum | GB, VC4 North Devon, Braunton Burrows | Edwin Bernard Benson | | 7/1895 | SHYB | 18/10/2007 |
| + | Seriphidium maritimum | GB, VC19 North Essex, Thorrington | James Chapman Shenstone | John Durbin Gray
William Hunt Painter | 9/1886 | ABS | 16/2/2008 |
| + | Senecio vulgaris | GB, VC2 East Cornwall, Launceston | William Wise | William Wise | 8/1884 | LAUS | 7/1/2008 |
| + | Senecio vulgaris | GB, VC46 Cardiganshire, Ynyslas Dunes | John P Savidge | | 6/1967 | ABS | 12/2/2008 |
| + | Senecio vulgaris | GB, VC30 Bedfordshire, Flitwick | Mary Ann Brooks | Mary Ann Brooks | | BIRM | 14/12/2009 |
| + | Senecio sylvaticus | GB, VC40 Shropshire, Pulverbach | | | 8/1891 | SHYB | 16/8/2007 |
| + | Senecio squalidus | GB, VC23 Oxfordshire, Oxford | Allan Octavian Hume | Allan Octavian Hume | 3/5/1904 | SLBI | 28/11/2012 |
| + | Senecio jacobaea | GB, VC16 West Kent, Welling | Janet P Wise | Janet P Wise | 30/8/1962 | ABS | 19/3/2009 |
| + | Senecio erucifolius | GB, VC58 Cheshire, Tallarn Green | Edwin Bernard Benson | | 7/1896 | SHYB | 30/6/2007 |
| + | Senecio erucifolius | GB, VC58 Cheshire | Edwin Bernard Benson | | 8/1896 | SHYB | 7/9/2007 |
| + | Senecio erucifolius | GB, VC20 Hertfordshire, Watford | Edward Palmer | William Hadden Beeby | 8/1842 | SLBI | 30/11/2012 |
| + | Senecio cineraria x jacobaea = S. x albescens | IE, VCH21 Co. Dublin, Dalkey | Nathaniel Colgan | Allan Octavian Hume | 30/7/1907 | SLBI | 29/11/2012 |
| + | Senecio aquaticus | GB, VC40 Shropshire, Preston Boats | Richard de Gylpyn Benson | | 1894 | SHYB | 10/8/2007 |
| + | Selinum carvifolia | GB, VC29 Cambridgeshire, Chippenham | Richard Charles L'Estrange Burges | | 26/9/1936 | BIRM | 13/12/2010 |
| + | Selaginella selaginoides | GB, VC69 Westmorland, Stock Ghyll Force | Harold Britten | | 23/6/1926 | CLE | 17/12/2008 |
| + | Selaginella selaginoides | GB, VC83 Midlothian | J Knapp | Mantua And Montferrat | | BON | 9/3/2010 |
| + | Selaginella selaginoides | GB, VC69 Westmorland | William Robert Crotch | Mantua And Montferrat | | BON | 12/9/2010 |
| + | Sedum telephium | GB, VC40 Shropshire, Oaks Hall | | | 8/1891 | SHYB | 12/3/2007 |
| + | Sedum sexangulare | GB, VC6 North Somerset, Banwell | James Walter White | | 10/7/1891 | SHYB | 17/3/2007 |
| + | Sedum rupestre | GB, VC46 Cardiganshire, Llanbadarn | | Richard de Gylpyn Benson | 26/8/1892 | SHYB | 28/9/2007 |
| + | Sedum forsterianum | GB, VC27 East Norfolk, Gunton | Edward Francis Linton | Edward Francis Linton
William Hunt Painter | 1/7/1885 | ABS | 30/11/2008 |
| + | Sedum acre | GB, VC34 West Gloucestershire, Beachley | William J H Greenwood | | 19/6/1913 | GLR | 7/2/2011 |
| + | Sedum acre | GB, VC34 West Gloucestershire, Penmoel | William J H Greenwood | | 20/6/1913 | GLR | 7/2/2011 |
| + | Securigera varia | GB, VC29 Cambridgeshire, Newmarket,Newmarket Heath | Albert John Crosfield | | 15/8/1917 | BIRM | 7/11/2009 |
| + | Scutellaria minor | GB, VC40 Shropshire, The Wrekin | William Hunt Painter | William Hunt Painter | 6/9/1897 | SHYB | 12/3/2007 |
| + | Scutellaria minor | GB, VC44 Carmarthenshire, Rhyd ddu | Richard de Gylpyn Benson | | 7/1893 | SHYB | 17/10/2007 |
| + | Scutellaria minor | GB, VC39 Staffordshire, Walsall Wood | | Beatrice Frederica Lovibond
Leicester Darwall | 10/8/1832 | K | 7/7/2014 |
| + | Scutellaria galericulata | GB, VC12 North Hampshire, Dogmersfield | Charlotte Ellen Palmer | Botanical Exchange Club of The British Isles
Charlotte Ellen Palmer | 29/8/1896 | SHYB | 7/9/2007 |
| + | Scutellaria galericulata | GB, VC37 Worcestershire, Churchill | | William Hunt Painter | 25/7/1882 | ABS | 18/2/2008 |
| + | Scrophularia vernalis | GB, VC82 East Lothian, Longniddry | William Edgar Evans | William Edgar Evans | 16/6/1906 | E | 12/3/2015 |
| + | Scrophularia vernalis | GB, VC84 West Lothian, Carriden | Elizabeth P Beattie | | 1/7/1970 | E | 12/3/2015 |
| + | Scrophularia umbrosa | GB, VC83 Midlothian, Dalkeith | | Alexander Craig Christie
Henry Halcro Johnston | 11/8/1892 | E | 12/3/2015 |
| + | Scrophularia nodosa | GB, VC21 Middlesex, Harefield | S J Lockyer | | 8/7/1973 | ABS | 12/2/2008 |
| + | Scrophularia nodosa | GB, VC34 West Gloucestershire, Conham Ferry | Alec Dowling | | 20/8/1965 | ABS | 15/3/2009 |
| + | Scrophularia auriculata | GB, VC40 Shropshire, Shrewsbury | | Richard de Gylpyn Benson | 11/6/1888 | SHYB | 8/9/2007 |
| + | Scrophularia auriculata | GB, VC64 Mid-west Yorkshire, Askham | Langley Kitching | Langley Kitching | 12/7/1876 | BIRM | 11/10/2008 |
| + | Scrophularia auriculata | GB, VC38 Warwickshire, Chesterton | | Robert Large Baker | 6/1873 | BIRM | 11/10/2008 |
| + | Scrophularia auriculata | GB, VC13 West Sussex, Compton | Sidney Albert Pearce | | 6/1929 | E | 12/3/2015 |
| + | Scleranthus perennis | GB, VC26,VC28, Barnhamcross Common | Douglas Montague Heath | Douglas Montague Heath | 23/9/1926 | BIRM | 29/12/2008 |
| + | Scleranthus perennis | GB, VC26 West Suffolk, Lakenheath | Arthur Bennett | | 15/7/1876 | BIRM | 17/7/2009 |
| + | Scleranthus perennis | GB, VC26 West Suffolk, Icklingham | Charles Cardale Babington | William West | 25/6/1863 | BIRM | 17/7/2009 |
| + | Scleranthus perennis | GB, VC26 West Suffolk, Icklingham | W Jordan | | 6/1876 | BIRM | 17/7/2009 |
| + | Scleranthus perennis | GB, VC26 West Suffolk, Lakenheath | Arthur Bennett | Augustin Ley | 7/1876 | BIRM | 17/7/2009 |
| + | Scleranthus perennis | GB, VC26 West Suffolk, Mildenhall | Albert John Crosfield | Watson Botanical Exchange Club
Augustin Ley | 13/9/1909 | BIRM | 17/7/2009 |
| + | Scleranthus perennis | GB, VC30 Bedfordshire, Millbrook | | William Hillhouse | 16/10/1874 | BIRM | 17/7/2009 |
| + | Scleranthus perennis | GB, VC17 Surrey, Headley | William West
William West | George Stephen West | 1/8/1900 | BIRM | 17/7/2009 |
| + | Scleranthus perennis | GB, VC43 Radnorshire, Stanner Rocks | Augustin Ley | Augustin Ley | 1/6/1870 | BIRM | 17/7/2009 |
| + | Scleranthus perennis | GB, VC28 West Norfolk, Snettisham | Richard Charles L'Estrange Burges | | 5/7/1945 | BIRM | 30/5/2012 |
| + | Scleranthus annuus | GB, VC40 Shropshire, Pulverbach | Richard de Gylpyn Benson | | 8/1893 | SHYB | 17/10/2007 |
| + | Scleranthus annuus | GB, VC39 Staffordshire, Chorlton Moss | John William Daltry | | 1839 | ABS | 5/5/2008 |
| + | Scleranthus annuus | GB, VC62 North-east Yorkshire, Seamer | William West | George Stephen West
William West | 8/8/1890 | BIRM | 28/5/2008 |
| + | Scleranthus annuus | GB, VC62 North-east Yorkshire, Thirsk | John Gilbert Baker | George Stephen West | 7/1853 | BIRM | 12/6/2008 |
| + | Scleranthus annuus | GB, VC22 Berkshire, Cothill | Charles Edward Hubbard
William Bertram Turrill | | 24/8/1944 | K | 9/5/2012 |
| + | Scleranthus annuus | GB, VC9 Dorset, Wych, Purbeck | Lester Vallis Lester-Garland | | 1892 | K | 9/5/2012 |
| + | Scleranthus annuus | GB, VC36 Herefordshire, Pontrilas | | George Bentham | 1844 | K | 9/5/2012 |
| + | Scleranthus annuus | GB, VC2 East Cornwall, Par Sands | Cobbe | Edgar Thurston | 5/1917 | K | 9/5/2012 |
| + | Scleranthus annuus | GB, VC113 Channel Islands, Little Sark | E A Golby
Francis Ballard | | 13/6/1929 | K | 18/5/2012 |
| + | Scleranthus annuus | GB, VC58 Cheshire, Little Stanney | George Valentine Chapman Last | George Valentine Chapman Last | 21/9/1939 | K | 30/5/2012 |
| + | Scleranthus annuus | GB, VC2 East Cornwall, Par Harbour | Edgar Thurston | Edgar Thurston | 15/5/1920 | K | 12/6/2012 |
| + | Scleranthus annuus | GB, VC27 East Norfolk, Cromer | | William Jackson Hooker | 1806 | K | 12/6/2012 |
| + | Scleranthus annuus subsp. annuus | GB, VC17 Surrey, Kew Gardens Cultivated | | William Jackson Hooker | | K | 16/4/2015 |
| + | Scirpus sylvaticus | IE, VCH9 Co. Clare, Parteen | Robert Lloyd Praeger | Robert Lloyd Praeger | 18/6/1903 | DBC | 14/3/2011 |
| + | Scirpus rufus | GB, VC109 Caithness, Thurso river | Richard Charles L'Estrange Burges | | 3/7/1946 | BIRM | 12/5/2012 |
| + | Scirpus palustris | GB, VC40 Shropshire, Longden | Richard de Gylpyn Benson | | 6/1892 | SHYB | 8/9/2007 |
| + | Scilla verna | GB, VC1 West Cornwall, Newquay | Charles Baylis Green | Charles Baylis Green | 9/1900 | SLBI | 6/1/2013 |
| + | Schoenus nigricans | GB, VC64 Mid-west Yorkshire, Settle | John Tatham | | | ABS | 9/8/2007 |
| + | Schoenoplectus tabernaemontani | GB, VC28 West Norfolk, Wolferton | Douglas Montague Heath | Douglas Montague Heath | 11/6/1917 | BIRM | 13/7/2009 |
| + | Schoenoplectus tabernaemontani | GB, VC28 West Norfolk, Wells next the Sea | F W Robinson | Douglas Montague Heath | 2/8/1915 | BIRM | 13/7/2009 |
| + | Schoenoplectus tabernaemontani | GB, VC10 Isle of Wight, Brading | Douglas Montague Heath | Douglas Montague Heath | 11/7/1917 | BIRM | 13/7/2009 |
| + | Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC27 East Norfolk, Salhouse Broad | Douglas Montague Heath | Douglas Montague Heath | 6/9/1915 | BIRM | 14/6/2008 |
| + | Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC15,VC16, Aylesford | | Douglas Montague Heath | 7/9/1926 | BIRM | 25/7/2008 |
| + | Scandix pecten-veneris | GB, VC9 Dorset, Barcombe | Albert John Hambrough | Allan Octavian Hume | 6/1838 | SLBI | 15/12/2012 |
| + | Scabiosa columbaria | GB, VC17 Surrey, Box Hill | | | 3/7/1880 | DBC | 14/3/2011 |
| + | Saxifraga umbrosa x spathularis = S. x urbium | GB, VC100 Clyde Islands, Glen Sannox | Charles Bailey | Charles Bailey | 29/6/1877 | MANCH | 23/7/2006 |
| + | Saxifraga umbrosa x spathularis = S. x urbium | GB, VC57 Derbyshire, Lover's Leap Cultivated | Frances Louisa Foord-Kelcey | Botanical Exchange Club of The British Isles
Charles Bailey | 5/1906 | MANCH | 24/7/2006 |
| + | Saxifraga umbrosa x spathularis = S. x urbium | GB, VC58 Cheshire, Taxal | Charles Bailey | Charles Bailey | 1/8/1876 | MANCH | 25/7/2006 |
| + | Saxifraga umbrosa x spathularis = S. x urbium | IE, VCH1,VCH2, Killarney | | Samuel Octavus Gray
William Gourlie | 7/1840 | MANCH | 2/10/2006 |
| + | Saxifraga umbrosa x spathularis = S. x urbium | IE, VCH16 West Galway, Derry-Voreathra | | John Hutton Balfour | 13/8/1838 | MANCH | 2/10/2006 |
| + | Saxifraga umbrosa x spathularis = S. x urbium | GB, VC88 Mid Perthshire, Dunkeld | William Hunter Campbell | Charles Bailey
William Alexander Stables
William Lowndes Notcutt | 26/8/1839 | MANCH | 2/10/2006 |
| + | Saxifraga umbrosa x spathularis = S. x urbium | IE, VCH2 North Kerry, Killarney,Torc [Turk] Mountain | William Andrews | Hewett Cottrell Watson | 8/1844 | MANCH | 2/10/2006 |
| + | Saxifraga umbrosa x spathularis = S. x urbium | IE, VCH1,VCH2, Lough Leane | William Andrews | Hewett Cottrell Watson | | MANCH | 20/12/2006 |
| + | Saxifraga umbrosa x hirsuta = S. x geum | IE, VCH1,VCH2, Lough Leane | William Andrews | Charles Bailey
William Lowndes Notcutt | 7/1844 | MANCH | 2/10/2006 |
| + | Saxifraga umbrosa x hirsuta = S. x geum | | | Charles Bailey
William Lowndes Notcutt | | MANCH | 2/10/2006 |
| + | Saxifraga umbrosa | GB, VC11 South Hampshire, Caigers Green | | Douglas Montague Heath | 21/5/1918 | BIRM | 5/8/2008 |
| + | Saxifraga tridactylites | GB, VC28,VC29, Breckland | Rowena Mabel Ferguson | | 11/5/1935 | ABS | 6/8/2008 |
| + | Saxifraga tridactylites | GB, VC45 Pembrokeshire, Tenby | Edwin Bernard Benson | | 5/1892 | SHYB | 21/1/2010 |
| + | Saxifraga tridactylites | GB, VC26 West Suffolk, Cavenham | Richard Charles L'Estrange Burges | Richard Charles L'Estrange Burges | 25/4/1936 | BIRM | 16/1/2011 |
| + | Saxifraga stellaris | GB, VC48 Merionethshire, Barmouth | Edwin Bernard Benson | | 1899 | SHYB | 7/9/2007 |
| + | Saxifraga stellaris | GB, VC69,VC70, Helvellyn | | Langley Kitching | 20/9/1875 | BIRM | 17/4/2008 |
| + | Saxifraga stellaris | GB, VC70 Cumberland, Helvellyn | Augustin Ley | Augustin Ley | 30/8/1881 | BIRM | 29/4/2008 |
| + | Saxifraga stellaris | GB, VC107,VC108, Ben More Assynt | Augustin Ley | Augustin Ley | 15/7/1870 | BIRM | 29/4/2008 |
| + | Saxifraga stellaris | GB, VC49 Caernarvonshire, Snowdon | Mary Axford | Harold Stuart Thompson
Thomas Clark | 7/1832 | BIRM | 29/4/2008 |
| + | Saxifraga stellaris | GB, VC90 Angus, Clova | | Harold Stuart Thompson | 8/1849 | BIRM | 29/4/2008 |
| + | Saxifraga stellaris | GB, VC70 Cumberland, Great Gable | Joseph Dickinson | Botanical Society of London
Liverpool Natural History Society
Harold Stuart Thompson | to 1842 | BIRM | 29/4/2008 |
| + | Saxifraga stellaris | GB, VC65,VC66, Teesdale | B B Le Tall | Harold Stuart Thompson | 11/8/1886 | BIRM | 29/4/2008 |
| + | Saxifraga stellaris | GB, VC87 West Perthshire, Ben Cleuch | Hugh M Balfour | Harold Stuart Thompson | 6/1847 | BIRM | 29/4/2008 |
| + | Saxifraga stellaris | GB, VC47 Montgomeryshire, Blaen gwy | Augustin Ley | Augustin Ley | 2/8/1886 | BIRM | 23/7/2008 |
| + | Saxifraga stellaris | IE, VCH1 South Kerry, Brandon Peak | Augustin Ley | Augustin Ley | 12/8/1887 | BIRM | 23/7/2008 |
| + | Saxifraga stellaris | GB, VC46 Cardiganshire, Rheidol | Augustin Ley | Augustin Ley | 4/8/1886 | BIRM | 23/7/2008 |
| + | Saxifraga spathularis x hirsuta = S. x polita | IE, VCH1,VCH2, Kerry | Richard Charles L'Estrange Burges | | 8/6/1937 | BIRM | 22/12/2010 |
| + | Saxifraga oppositifolia | GB, VC49 Caernarvonshire, Cwm Idwal | | Douglas Montague Heath | 8/7/1921 | BIRM | 23/7/2008 |
| + | Saxifraga oppositifolia | GB, VC88 Mid Perthshire, Ben Lawers | | Douglas Montague Heath | 4/7/1926 | BIRM | 23/7/2008 |
| + | Saxifraga oppositifolia | GB, VC88 Mid Perthshire, Ben Lawers | Richard Charles L'Estrange Burges | | 1/7/1936 | BIRM | 14/5/2012 |
| + | Saxifraga hypnoides | GB, VC57 Derbyshire, Dovedale | D A J Little | | 2/5/1949 | ABS | 4/2/2008 |
| + | Saxifraga hypnoides | GB, VC96 East Inverness-shire, Glen Feshie | Philip Frank Wareing | Philip Frank Wareing | 1952 | ABS | 4/2/2008 |
| + | Saxifraga hypnoides | GB, VC35, VC36, Hatterrall Hill | Augustin Ley | Botanical Exchange Club of The British Isles
William Hunt Painter | 19/6/1888 | ABS | 4/2/2008 |
| + | Saxifraga hypnoides | GB, VC42 Breconshire, Brecon Beacons | Augustin Ley | Botanical Exchange Club of The British Isles
William Hunt Painter | 14/7/1886 | ABS | 4/2/2008 |
| + | Saxifraga hypnoides | IE, VCH1 South Kerry, Brandon Mountain | Alban Edward Lomax | Alban Edward Lomax | 22/6/1886 | ABS | 4/2/2008 |
| + | Saxifraga hypnoides | GB, VC43 Radnorshire, Aberedw | Augustin Ley | Augustin Ley | 12/5/1886 | BIRM | 4/8/2009 |
| + | Saxifraga hypnoides | GB, VC88 Mid Perthshire, Ben Lawers | T Stock | George Stephen West | 8/1876 | BIRM | 14/12/2009 |
| + | Saxifraga hypnoides | GB, VC57 Derbyshire, Wormhill | William West | George Stephen West | 6/1878 | BIRM | 14/12/2009 |
| + | Saxifraga hypnoides | GB, VC6 North Somerset, Cheddar Cliffs | Harold Stuart Thompson | Harold Stuart Thompson | 24/4/1905 | BIRM | 13/1/2010 |
| + | Saxifraga hypnoides | GB, VC6 North Somerset, Cheddar Gorge | Harold Stuart Thompson | Harold Stuart Thompson | 15/6/1922 | BIRM | 13/1/2010 |
| + | Saxifraga hypnoides | GB, VC42 Breconshire, Craig y Cilau | Augustin Ley | | 4/6/1895 | BIRM | 27/2/2010 |
| + | Saxifraga hypnoides | GB, VC44 Carmarthenshire, Fan Fechan | Augustin Ley | Augustin Ley | 16/8/1897 | BIRM | 27/2/2010 |
| + | Saxifraga hypnoides | IE, VCH28 Co. Sligo, Benbulben | Richard Charles L'Estrange Burges | | 17/6/1937 | BIRM | 22/12/2010 |
| + | Saxifraga hypnoides | GB, VC42 Breconshire, Brecon Beacons | Augustin Ley | Augustin Ley | 15/8/1894 | BIRM | 19/1/2011 |
| + | Saxifraga hypnoides | GB, VC88 Mid Perthshire, Ben Lawers | Richard Charles L'Estrange Burges | | 24/7/1934 | BIRM | 23/1/2011 |
| + | Saxifraga hirsuta | IE, VCH1,VCH2, Connor Hill | Alban Edward Lomax | William Hunt Painter | 23/6/1886 | ABS | 12/2/2008 |
| + | Saxifraga hirsuta | IE, VCH2 North Kerry, Glengariff | Richard Charles L'Estrange Burges | | 8/6/1937 | BIRM | 23/1/2011 |
| + | Saxifraga hirsuta | IE, VCH1,VCH2, Killarney | Richard Charles L'Estrange Burges | | 9/6/1937 | BIRM | 13/2/2011 |
| + | Saxifraga aizoides | GB, VC87 West Perthshire, Ben Lui | G Smith | William Hunt Painter | 7/1879 | ABS | 21/2/2008 |
| + | Saxifraga aizoides | GB, VC69 Westmorland, Kirkstone Pass | Arthur Waters Preston | Arthur Waters Preston
William Hunt Painter | 8/6/1878 | ABS | 21/2/2008 |
| + | Saxifraga aizoides | GB, VC96 East Inverness-shire, Glen Feshie | Philip Frank Wareing | Philip Frank Wareing | 1952 | ABS | 3/9/2008 |
| + | Saxifraga aizoides | GB, VC96 East Inverness-shire, Loch Moy | Marian Sarah Ogilvie Farquharson | William Hunt Painter | 8/1880 | ABS | 3/12/2008 |
| + | Saxifraga aizoides | GB, VC87,VC88,VC89, Dumfarthill | | Charles Edgar Salmon
John Arthur Power | | ABS | 9/12/2008 |
| + | Saxifraga aizoides | GB, VC87 West Perthshire, Pass of Leny | Richard Charles L'Estrange Burges | | 20/7/1927 | BIRM | 22/12/2010 |
| + | Saxifraga aizoides | GB, VC66 County Durham, Widdybank Fell, Teesdale | Richard Charles L'Estrange Burges | | 15/8/1945 | BIRM | 22/12/2010 |
| + | Saussurea alpina | GB, VC111 Orkney, Hoy Hill | William Irvine Fortescue | Botanical Exchange Club of The British Isles
William Hunt Painter | 20/8/1885 | ABS | 24/12/2007 |
| + | Satureja hortensis | GB, VC42 Breconshire, Brecon | Augustin Ley | Augustin Ley | 1891 | BIRM | 19/4/2010 |
| + | Sanicula europaea | | | | | MANCH | 11/11/2006 |
| + | Sanicula europaea | GB, VC62 North-east Yorkshire, Saltburn | Charles Bailey | Charles Bailey | 4/7/1897 | MANCH | 15/12/2006 |
| + | Sanicula europaea | GB, VC63 South-west Yorkshire, Maltby | Charles Bailey | Charles Bailey | 26/5/1899 | MANCH | 26/12/2006 |
| + | Sanicula europaea | GB, VC63 South-west Yorkshire, Maltby | Charles Bailey | Charles Bailey | 26/5/1899 | MANCH | 26/12/2006 |
| + | Sanicula europaea | GB, VC40 Shropshire, Pulverbatch | Richard de Gylpyn Benson | | 4/1893 | SHYB | 26/3/2007 |
| + | Sanicula europaea | GB, VC2 East Cornwall, Lawhitton | William Wise | | 20/6/1888 | LAUS | 11/1/2008 |
| + | Sanguisorba minor subsp. muricata | GB, VC38 Warwickshire, Milverton | Henry Bromwich | Botanical Exchange Club of The British Isles
Augustin Ley | 6/1884 | BIRM | 26/7/2009 |
