| + | Crocus vernus | GB, VC20 Hertfordshire, Totteridge | J Woodgate | George Stephen West
William West | 3/1877 | BIRM | 5/11/2009 |
| + | Rumex crispus | GB, VC35 Monmouthshire, Risca | Stephen Wood | | 18/9/1961 | ABS | 13/4/2008 |
| + | Silene dioica | GB, VC35 Monmouthshire, Twmbarlwn, Risca | Stephen Wood | | 15/9/1961 | ABS | 1/4/2009 |
| + | Teesdalia nudicaulis | GB, VC17 Surrey, Saint Catherine's Hill, Guildford | S Wood
William West | George Stephen West
William West | 12/4/1896 | BIRM | 29/8/2008 |
| + | Gladiolus illyricus | GB, VC11 South Hampshire, Lyndhurst | S Wood
William West | George Stephen West | 10/7/1898 | BIRM | 29/3/2009 |
| + | Fritillaria meleagris | GB, VC21 Middlesex, Pinner | S Wood | George Stephen West | 3/5/1896 | BIRM | 1/5/2009 |
| + | Orchis simia | GB, VC23 Oxfordshire, Goring | S Wood
William West | George Stephen West
William West | 31/5/1895
9/6/1895 | BIRM | 28/5/2009 |
| + | Spiranthes aestivalis | GB, VC11 South Hampshire, Lyndhurst | S Wood
William West | George Stephen West
William West | 11/7/1897
18/7/1897 | BIRM | 20/9/2009 |
| + | Saxifraga hypnoides | GB, VC88 Mid Perthshire, Ben Lawers | Robert Wood | William Hunt Painter | 7/1870 | ABS | 14/11/2007 |
| + | Primula farinosa | GB, VC70 Cumberland, Westward | Robert Wood | William Hunt Painter | 5/1880 | ABS | 3/12/2007 |
| + | Draba norvegica | GB, VC88 Mid Perthshire, Ben Lawers | Robert Wood | William Hunt Painter | 7/1870 | ABS | 24/5/2008 |
| + | Alchemilla connivens | GB, VC17 Surrey, Croydon Cultivated | Arthur Bennett
R Wood | William Hadden Beeby | 1885 | SLBI | 22/5/2012 |
| + | Mentha arvensis x spicata = M. x gracilis | GB, VC59 South Lancashire, Warrington | John Bland Wood | Botanical Exchange Club of The British Isles
Grosvenor Museum Chester | 7/9/1843 | LIV | 28/3/2007 |
| + | Odontites vernus subsp. serotinus | GB, VC17 Surrey, Purley | J M Wood | | 5/9/1964 | ABS | 14/1/2009 |
| + | Euphorbia exserta | GB, VC17 Surrey, Purley | J M Wood | | 9/1964 | ABS | 23/1/2009 |
| + | Chaenorhinum minus | GB, VC46 Cardiganshire, Llanbadarn-fawr | J M Wood | | 7/10/1964 | ABS | 23/1/2009 |
| + | Reseda lutea | GB, VC17 Surrey, Purley | J M Wood | | 10/8/1964 | ABS | 8/2/2009 |
| + | Teesdalia nudicaulis | GB, VC17 Surrey, Puttenham | Emily Margaret Wood
S Wood
William West | George Stephen West
William West | 12/4/1896 | BIRM | 29/8/2008 |
| + | Littorella uniflora | GB, VC36 Herefordshire, Cusop Hill | Wood | Augustin Ley | 6/1889 | BIRM | 19/11/2008 |
| + | Mentha arvensis | GB, VC16 West Kent, Bexleyheath | Anthony Hurt Wolley Dod | Botanical Exchange Club of The British Isles
William Hunt Painter | 8/9/1894 | ABS | 10/11/2007 |
| + | Bromus arvensis | GB, VC16 West Kent, Charlton | Anthony Hurt Wolley Dod | Anthony Hurt Wolley Dod
William Hunt Painter | 13/7/1894 | ABS | 19/12/2007 |
| + | Ceratochloa cathartica | GB, VC16 West Kent, Greenwich | Anthony Hurt Wolley Dod | Botanical Exchange Club of The British Isles
Anthony Hurt Wolley Dod | 4/11/1894 | ABS | 19/12/2007 |
| + | Bromus japonicus | GB, VC16 West Kent, Woolwich | Anthony Hurt Wolley Dod | Botanical Exchange Club of The British Isles
William Hunt Painter | 20/6/1894 | ABS | 19/12/2007 |
| + | Galium parisiense | GB, VC16 West Kent, Eltham | Anthony Hurt Wolley Dod | William Hunt Painter | 15/7/1894 | ABS | 1/2/2008 |
| + | Festuca arenaria | GB, VC18 South Essex, Shoebury | Anthony Hurt Wolley Dod | Botanical Exchange Club of The British Isles
Anthony Hurt Wolley Dod
William Hunt Painter
William Richardson Linton | 24/6/1894 | ABS | 18/2/2008 |
| + | Plantago coronopus | GB, VC10 Isle of Wight, Freshwater | Anthony Hurt Wolley Dod | Botanical Exchange Club of The British Isles
Anthony Hurt Wolley Dod | 8/8/1904 | ABS | 18/3/2008 |
| + | Plantago coronopus | GB, VC40 Shropshire, Whitchurch | Anthony Hurt Wolley Dod | Botanical Exchange Club of The British Isles | 23/7/1900
20/8/1901 | ABS | 18/3/2008 |
| + | Cardamine flexuosa | GB, VC17 Surrey, Walton Common | Anthony Hurt Wolley Dod | Botanical Exchange Club of The British Isles
William Hunt Painter | 7/5/1905 | ABS | 11/4/2008 |
| + | Veronica scutellata var. pubescens | GB, VC58 Cheshire, Edge Green | Anthony Hurt Wolley Dod | Botanical Exchange Club of The British Isles
William Hunt Painter | 1/8/1892 | ABS | 13/4/2008 |
| + | Rubus nemorosus | GB, VC17 Surrey, Walton Common | Anthony Hurt Wolley Dod | William Hunt Painter | 20/7/1902 | ABS | 19/5/2008 |
| + | Centaurea nigra | GB, VC58 Cheshire, Oldcastle Heath | Anthony Hurt Wolley Dod | Botanical Exchange Club of The British Isles
Anthony Hurt Wolley Dod
William Hunt Painter | 13/8/1894 | ABS | 23/5/2008 |
| + | Rosa stylosa | GB, VC17 Surrey, Ham Common | Anthony Hurt Wolley Dod | William Hunt Painter | 6/1893 | ABS | 8/3/2009 |
| + | Puccinellia distans | GB, VC16 West Kent, Higham | Anthony Hurt Wolley Dod | Botanical Exchange Club of The British Isles
Anthony Hurt Wolley Dod
William Hunt Painter | 19/8/1894 | ABS | 11/3/2009 |
| + | Ranunculus acris | GB, VC2 East Cornwall, Launceston | William Wise | William Wise | 6/1917 | LAUS | 11/12/2007 |
| + | Raphanus sativus | GB, VC2 East Cornwall, Par | William Wise | | 8/1915 | LAUS | 13/12/2007 |
| + | Coronopus didymus | GB, VC3 South Devon, Plymouth | William Wise | William Wise | 8/1882 | LAUS | 13/12/2007 |
| + | Coronopus squamatus | GB, VC3 South Devon, Exmouth | William Wise | | | LAUS | 13/12/2007 |
| + | Reseda luteola | GB, VC3 South Devon, Exmouth | William Wise | | 8/1893 | LAUS | 13/12/2007 |
| + | Glaucium flavum | GB, VC3 South Devon, Exmouth | William Wise | | 8/1887 | LAUS | 13/12/2007 |
| + | Sisymbrium orientale | GB, VC2 East Cornwall, Bodmin Road Station | William Wise | William Wise | 29/7/1917 | LAUS | 13/12/2007 |
| + | Sagina subulata | GB, VC3 South Devon, Rumple Quarry | William Wise | William Wise | 9/7/1888 | LAUS | 13/12/2007 |
| + | Spergula arvensis | GB, VC2 East Cornwall, Saint Thomas Bridge (Launceston) | William Wise | | 7/8/1888 | LAUS | 13/12/2007 |
| + | Papaver somniferum | GB, VC2 East Cornwall, Charlestown | William Wise | William Wise | 16/6/1920 | LAUS | 16/12/2007 |
| + | Viola palustris | GB, VC2 East Cornwall, Hawks' Tor | William Wise | William Wise | 2/5/1882 | LAUS | 16/12/2007 |
| + | Cerastium glomeratum | GB, VC2 East Cornwall, Launceston | William Wise | | 16/5/1888 | LAUS | 16/12/2007 |
| + | Ranunculus flammula | GB, VC2 East Cornwall, Launceston | William Wise | | 14/6/1888 | LAUS | 16/12/2007 |
| + | Fumaria muralis subsp. boraei | GB, VC2 East Cornwall, Launceston | William Wise | | 8/1881 | LAUS | 16/12/2007 |
| + | Stellaria media | GB, VC2 East Cornwall, Launceston | William Wise | | 4/1885 | LAUS | 16/12/2007 |
| + | Stellaria media | GB, VC2 East Cornwall, Launceston | William Wise | | 7/5/1888 | LAUS | 16/12/2007 |
| + | Capsella bursa-pastoris | GB, VC2 East Cornwall, Launceston | William Wise | | 23/6/1892 | LAUS | 16/12/2007 |
| + | Melilotus indicus | GB, VC2 East Cornwall, Great Western Railway Station, Launceston | William Wise | | 10/9/1894 | LAUS | 16/12/2007 |
| + | Rosa | GB, VC3 South Devon, Trusham | William Wise | | 14/6/1918 | LAUS | 16/12/2007 |
| + | Corrigiola litoralis | GB, VC3 South Devon, Slapton Sands | William Wise | | 8/1928 | LAUS | 16/12/2007 |
| + | Trifolium dubium | GB, VC2 East Cornwall, Launceston | William Wise | | 11/7/1888 | LAUS | 16/12/2007 |
| + | Lathyrus nissolia | GB, VC3 South Devon, Exmouth | William Wise | | 8/1887 | LAUS | 16/12/2007 |
| + | Hypericum androsaemum | GB, VC2 East Cornwall, Launceston | William Wise | | 23/8/1888 | LAUS | 16/12/2007 |
| + | Trifolium arvense | GB, VC2 East Cornwall, Boscastle | William Wise | | 6/1887 | LAUS | 16/12/2007 |
| + | Sanguisorba officinalis | GB, VC4 North Devon, Coryton | William Wise | | 8/1900 | LAUS | 16/12/2007 |
| + | Anemone nemorosa | GB, VC2 East Cornwall, Landlake Wood | William Wise | | 5/1890 | LAUS | 16/12/2007 |
| + | Umbilicus rupestris | GB, VC2 East Cornwall, Launceston | William Wise | | 16/7/1888 | LAUS | 16/12/2007 |
| + | Thalictrum minus | GB, VC3 South Devon, Berry Head | William Wise | | 13/6/1918 | LAUS | 16/12/2007 |
| + | Malva moschata | GB, VC2 East Cornwall, Launceston | William Wise | | 6/1882 | LAUS | 16/12/2007 |
| + | Erodium cicutarium var. chaerophyllum | GB, VC2 East Cornwall, Launceston | William Wise | | 4/6/1888 | LAUS | 16/12/2007 |
| + | Medicago arabica | GB, VC3 South Devon, Plymouth, The Hoe | William Wise | | 14/5/1888 | LAUS | 16/12/2007 |
| + | Trifolium hybridum | GB, VC2 East Cornwall, Under Lane, Saint Thomas | William Wise | | 7/1883 | LAUS | 16/12/2007 |
| + | Rosa canina | GB, VC2 East Cornwall, Saint Catherine's Lane, Launceston | William Wise | | 6/1888 | LAUS | 16/12/2007 |
| + | Chamerion angustifolium | GB, VC2 East Cornwall, Withypool, Lawhitton | William Wise | | 8/1888 | LAUS | 16/12/2007 |
| + | Cardamine pratensis | GB, VC2 East Cornwall, Kensey Vale, Launceston | William Wise | | 14/5/1888 | LAUS | 16/12/2007 |
| + | Drosera anglica | GB, VC1 West Cornwall, Ventongimps Moor | William Wise | | 20/7/1916 | LAUS | 16/12/2007 |
| + | Prunus padus | GB, VC2 East Cornwall, Launceston | William Wise | | 20/5/1892 | LAUS | 16/12/2007 |
| + | Ranunculus sardous | GB, VC1 West Cornwall, Lizard | William Wise | | 8/6/1916 | LAUS | 16/12/2007 |
| + | Armoracia rusticana | GB, VC2 East Cornwall, Launceston | William Wise | | 6/1892 | LAUS | 16/12/2007 |
| + | Malva sylvestris | GB, VC2 East Cornwall, Launceston | William Wise | | 13/9/1888 | LAUS | 16/12/2007 |
| + | Myriophyllum alterniflorum | GB, VC2 East Cornwall, Launceston | William Wise | | 8/1887 | LAUS | 16/12/2007 |
| + | Sorbus torminalis | GB, VC3 South Devon, Bickleigh | William Wise | | 9/7/1888 | LAUS | 16/12/2007 |
| + | Camelina sativa | GB, VC2 East Cornwall, Railway station, Launceston | William Wise | | 5/6/1893 | LAUS | 17/12/2007 |
| + | Melilotus indicus | GB, VC2 East Cornwall, Railway station, Launceston | William Wise | | 9/1902 | LAUS | 17/12/2007 |
| + | Prunus cerasus | GB, VC2 East Cornwall, Pennygillam | William Wise | | 5/1888
7/1888 | LAUS | 17/12/2007 |
| + | Epilobium hirsutum | GB, VC2 East Cornwall, Lawhitton | William Wise | William Wise | 7/1887 | LAUS | 17/12/2007 |
| + | Teesdalia nudicaulis | GB, VC3 South Devon, Bickleigh | William Wise | | 9/7/1888 | LAUS | 18/12/2007 |
| + | Pimpinella saxifraga | GB, VC4 North Devon, Druxton Wharf | William Wise | William Wise | 23/8/1888 | LAUS | 18/12/2007 |
| + | Sherardia arvensis | GB, VC2 East Cornwall, Launceston | William Wise | | 6/1892 | LAUS | 18/12/2007 |
| + | Hypochaeris maculata | GB, VC1 West Cornwall, Kynance Cove | William Wise | | 7/6/1916 | LAUS | 18/12/2007 |
| + | Arabidopsis thaliana | GB, VC2 East Cornwall, Launceston | William Wise | | 5/1888
9/1888 | LAUS | 20/12/2007 |
| + | Viola arvensis | GB, VC2 East Cornwall, Launceston | William Wise | | 27/8/1888 | LAUS | 20/12/2007 |
| + | Rubus pseudoplinthostylus | GB, VC3 South Devon, Bickleigh | William Wise | | 9/7/1888 | LAUS | 20/12/2007 |
| + | Cirsium vulgare | GB, VC2 East Cornwall, Bude | William Wise | | 7/1895 | LAUS | 20/12/2007 |
| + | Anthriscus sylvestris | GB, VC2 East Cornwall, Priory Field, Launceston | William Wise | | 6/1888 | LAUS | 20/12/2007 |
| + | Leontodon autumnalis | GB, VC2 East Cornwall, Launceston | William Wise | | 8/1888 | LAUS | 20/12/2007 |
| + | Sonchus arvensis | GB, VC2 East Cornwall, Launceston | William Wise | | 8/1884 | LAUS | 20/12/2007 |
| + | Ranunculus omiophyllus | GB, VC2 East Cornwall, Dutson | William Wise | | 4/1888 | LAUS | 21/12/2007 |
| + | Cochlearia officinalis | GB, VC2 East Cornwall, Launceston | William Wise | | 7/5/1888 | LAUS | 21/12/2007 |
| + | Trifolium suffocatum | GB, VC3 South Devon, Berry Head | Cobbe
William Wise | | 5/1918
6/1918 | LAUS | 21/12/2007 |
| + | Filago minima | GB, VC3 South Devon, Cann Quarry | William Wise | | 9/7/1888 | LAUS | 21/12/2007 |
| + | Barbarea vulgaris | GB, VC2 East Cornwall, Launceston | William Wise | | 6/1888 | LAUS | 23/12/2007 |
| + | Crithmum maritimum | GB, VC2 East Cornwall, Tintagel | William Wise | William Wise | 8/1893 | LAUS | 23/12/2007 |
| + | Dryopteris carthusiana | GB, VC3 South Devon, Plym Valley | William Wise | | 9/7/1888 | LAUS | 23/12/2007 |
| + | Oenanthe crocata | GB, VC2 East Cornwall, Launceston | William Wise | | 7/1907 | LAUS | 25/12/2007 |
| + | Euphrasia nemorosa | GB, VC2 East Cornwall, Dutson | William Wise | | 8/1884 | LAUS | 25/12/2007 |
| + | Alisma plantago-aquatica | GB, VC2 East Cornwall, Town Mills, Launceston | William Wise | | 7/8/1888 | LAUS | 25/12/2007 |
| + | Cochlearia danica | GB, VC2 East Cornwall, Madford Lane, Launceston | William Wise | | 5/1888 | LAUS | 30/12/2007 |
| + | Sambucus nigra | GB, VC1 West Cornwall, Penwerris Church, Falmouth | William Wise | | 31/7/1917 | LAUS | 30/12/2007 |
| + | Pinguicula lusitanica | GB, VC2 East Cornwall, Egloskerry | William Wise | | 6/1901 | LAUS | 30/12/2007 |
| + | Salix cinerea subsp. oleifolia | GB, VC2 East Cornwall, Windmill Hill, Launceston | William Wise | | 7/1888 | LAUS | 30/12/2007 |
| + | Trifolium hybridum | GB, VC2 East Cornwall, Launceston | William Wise | | 22/8/1888 | LAUS | 2/1/2008 |
| + | Lathyrus pratensis | GB, VC2 East Cornwall, Launceston | William Wise | | 8/1884 | LAUS | 2/1/2008 |
| + | Bidens cernua | GB, VC2 East Cornwall, Dutson | William Wise | | 8/1884 | LAUS | 2/1/2008 |
| + | Carex vesicaria | GB, VC2 East Cornwall, Rushyford Gate | William Wise | | 10/7/1898 | LAUS | 2/1/2008 |
| + | Lapsana communis | GB, VC2 East Cornwall, Launceston | William Wise | | 8/1884 | LAUS | 2/1/2008 |
| + | Veronica montana | GB, VC2 East Cornwall, Launceston | William Wise | | 7/1883 | LAUS | 2/1/2008 |
| + | Glaux maritima | GB, VC1,VC2, Wadebridge | William Wise | | 13/6/1895 | LAUS | 2/1/2008 |
| + | Salix caprea | GB, VC2 East Cornwall, Launceston | William Wise | | 8/1888 | LAUS | 2/1/2008 |
| + | Orobanche hederae | GB, VC3 South Devon, Berry Head | William Wise | | 13/6/1918 | LAUS | 11/1/2008 |
| + | Blechnum spicant | GB, VC2 East Cornwall, Kennard's House, near | William Wise | William Wise | 8/1888 | LAUS | 19/1/2008 |
| + | Allium ampeloprasum | GB, VC2 East Cornwall, Crackington Haven | William Wise | | | LAUS | 29/1/2008 |
| + | Aconitum napellus | GB, VC2 East Cornwall, Launceston | William Wise | | 7/1914 | LAUS | 31/1/2008 |
| + | Urtica urens | GB, VC2 East Cornwall, Bude | William Wise | | 30/8/1894 | LAUS | 2/2/2008 |
| + | Atropa belladonna | GB, VC1 West Cornwall, Penhale Cultivated | William Wise | | | LAUS | 3/2/2008 |
| + | Digitalis purpurea | GB, VC2 East Cornwall, Launceston | William Wise | | 30/6/1888 | LAUS | 8/2/2008 |
| + | Festuca ovina | GB, VC3 South Devon, Riddon | William Wise | | 23/6/1892 | LAUS | 20/2/2008 |
| + | Festuca arundinacea | GB, VC2 East Cornwall, Calstock | William Wise | | 8/1893 | LAUS | 22/2/2008 |
| + | Sedum acre | GB, VC2 East Cornwall, Launceston | William Wise | William Wise | 20/7/1888 | LAUS | 29/2/2008 |
| + | Agrimonia procera | GB, VC2 East Cornwall, Lawhitton | William Wise | | 7/1886 | LAUS | 8/3/2008 |
| + | Carum carvi | GB, VC2 East Cornwall, Launceston | William Wise | | 13/6/1898 | LAUS | 8/3/2008 |
| + | Malva sylvestris | GB, VC16 West Kent, Welling | Janet P Wise | | 30/8/1962 | ABS | 28/12/2008 |
| + | Orobanche caryophyllacea | DE, Homburg | F Wirkley | | 24/6/1886 | SLBI | 24/3/2013 |
| + | Eriocaulon aquaticum | GB, Scotland | James Edward Winterbottom | Charles Edgar Salmon
James Edward Winterbottom | 1838 to 1842 | ABS | 11/6/2008 |
| + | Mentha arvensis x aquatica = M. x verticillata | GB, VC59 South Lancashire, Warrington | William Wilson | John Stevens Henslow | 8/1824 | CGE | 7/4/2007 |
| + | Eriocaulon aquaticum | IE, VCH16 West Galway, Connemara | William Wilson | Mantua And Montferrat | 1829 | BON | 17/11/2009 |
| + | Tofieldia pusilla | VC87,VC88,VC89 | W W Wilson | Mantua And Montferrat | | BON | 11/11/2009 |
| + | Persicaria hydropiper | GB, VC38 Warwickshire, Sutton Park | Maurine J Wilson | | 18/9/1963 | ABS | 20/5/2008 |
| + | Succisa pratensis | GB, VC12 North Hampshire, Basing | J B Wilson | | 18/9/1964 | ABS | 28/3/2008 |
| + | Scrophularia auriculata | GB, VC12 North Hampshire, Basing | J B Wilson | | 20/9/1964 | ABS | 29/4/2008 |
| + | Potamogeton perfoliatus x crispus = P. x cooperi | GB, VC64 Mid-west Yorkshire, Ilkley | Albert Wilson | | 8/1910 | MANCH | 28/3/2007 |
| + | Senecio fluviatilis | GB, VC60 West Lancashire, Melling | Albert Wilson | Botanical Exchange Club of The British Isles
William Hunt Painter | 7/1900 | ABS | 3/7/2008 |
| + | Galium boreale | GB, VC60 West Lancashire, Caton | Albert Wilson | Botanical Exchange Club of The British Isles
Augustin Ley | 7/1903 | BIRM | 11/7/2009 |
| + | Pyrola media | GB, VC77 Lanarkshire | Wilson | William Jackson Hooker | | K | 22/5/2012 |
| + | Alchemilla monticola | GB, VC66 County Durham, Teesdale Cultivated | Alfred James Wilmott | Watson Botanical Exchange Club
Charles Edgar Salmon | 20/5/1926 | SLBI | 22/5/2012 |
| + | Lloydia alpina | GB, VC49 Caernarvonshire, Glyder Fawr | W Williams | Thomas Clark
William Robert Crotch | 6/1850 | BIRM | 30/5/2009 |
| + | Echium vulgare | GB, VC49 Caernarvonshire, Deganwy | Susan E Williams | | 2/9/1964 | ABS | 1/1/2009 |
| + | Oenothera cambrica | GB, VC41 Glamorganshire, Barry Island | Robert Williams | | 20/8/1962 | ABS | 11/2/2008 |
| + | Agrimonia eupatoria | GB, VC41 Glamorganshire, Porthkerry | Robert Williams | | 20/9/1962 | ABS | 12/4/2008 |
| + | Vicia sepium | GB, VC41 Glamorganshire, Porthkerry Wood | Robert Williams | | 20/8/1962 | ABS | 6/4/2009 |
| + | Lithospermum purpureocaeruleum | GB, VC50 Denbighshire, Denbigh | R Williams | Elizabeth Jones | 6/1869 | BIRM | 9/4/2008 |
| + | Linaria purpurea | GB, VC41 Glamorganshire, Loughor | Peter Williams | | 9/1965 | ABS | 15/11/2007 |
| + | Oenothera glazioviana | GB, VC41 Glamorganshire, Loughor | Peter Williams | | 9/1965 | ABS | 20/11/2008 |
| + | Medicago lupulina | GB, VC41 Glamorganshire, Loughor | Peter Williams | | 9/1965 | ABS | 14/1/2009 |
| + | Plantago major | GB, VC49 Caernarvonshire, Trwyn Yr Wylfa | P G Williams | | 8/1959 | ABS | 6/3/2008 |
| + | Fallopia japonica | GB, VC42 Breconshire, Ystnadgynlais | Marilyn A Williams | | 9/1966 | ABS | 4/3/2008 |
| + | Hieracium vagense | GB, VC49 Caernarvonshire, Llandudno | John Lloyd Williams | | 8/1892 | ABS | 25/4/2008 |
| + | Hieracium holophyllum | GB, VC49 Caernarvonshire, Great Orme's Head | John Lloyd Williams | | 7/1892 | ABS | 28/11/2008 |
| + | Dactylorhiza purpurella | GB, VC49 Caernarvonshire | Jane Ellen Williams | | 14/7/1959 | ABS | 15/11/2007 |
| + | Carex flacca | GB, VC49 Caernarvonshire | Jane Ellen Williams | | 17/6/1959 | ABS | 18/11/2007 |
| + | Rhinanthus minor | GB, VC49 Caernarvonshire | Jane Ellen Williams | | 24/6/1959 | ABS | 26/3/2008 |
| + | Fragaria vesca | GB, VC49 Caernarvonshire | Jane Ellen Williams | | 17/4/1959 | ABS | 5/6/2008 |
| + | Lathyrus pratensis | GB, VC49 Caernarvonshire | Jane Ellen Williams | | 19/6/1959 | ABS | 2/8/2008 |
| + | Persicaria maculosa | GB, VC49 Caernarvonshire | Jane Ellen Williams | | 21/7/1959 | ABS | 25/11/2008 |
| + | Potentilla reptans | GB, VC49 Caernarvonshire | Jane Ellen Williams | | 3/7/1959 | ABS | 2/1/2009 |
| + | Lolium perenne | GB, VC49 Caernarvonshire | Jane Ellen Williams | | 23/6/1959 | ABS | 29/1/2009 |
| + | Epilobium alsinifolium | GB, VC49 Caernarvonshire, Aber | J Williams | William Hunt Painter | 7/1870 | SHYB | 13/5/2007 |
| + | Hieracium sommerfeltii | GB, VC49 Caernarvonshire, Snowdon, Cwm Glas | J Williams | | | ABS | 28/11/2008 |
| + | Trifolium arvense | GB, VC29 Cambridgeshire, Furze Hills | Iolo Aneurin Williams | Watson Botanical Exchange Club | 8/7/1926 | SLBI | 13/11/2011 |
| + | Myosotis arvensis | GB, VC44 Carmarthenshire, Burry Port | H Williams | | 20/8/1958 | ABS | 31/7/2008 |
| + | Pentaglottis sempervirens | GB, VC41 Glamorganshire, Saint Fagans | H Williams | | 1/9/1958 | ABS | 20/11/2008 |
| + | Echium plantagineum | GB, VC41 Glamorganshire, Swansea, Singleton Park | H Williams | | 12/7/1958 | ABS | 23/1/2009 |
| + | Crepis capillaris | GB, VC50 Denbighshire, Saint Asaph | Elizabeth T Williams | | 18/7/1967 | ABS | 1/5/2008 |
| + | Geum urbanum | GB, VC50 Denbighshire, Saint Asaph/Llanelwy | Elizabeth T Williams | | 19/7/1967 | ABS | 24/6/2008 |
| + | Mimulus luteus | GB, VC50 Denbighshire, SaintAsaph | Elizabeth T Williams | | 14/7/1967 | ABS | 14/12/2008 |
| + | Sonchus oleraceus | GB, VC44 Carmarthenshire, Llanfair-ar-y-bryn | E D Williams | | 23/9/1960 | ABS | 7/5/2008 |
| + | Solanum dulcamara | GB, VC42 Breconshire, Ystradgynlais | D W Williams | | 9/1965 | ABS | 27/7/2008 |
| + | Cymbalaria muralis | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 8/9/1959 | ABS | 11/11/2007 |
| + | Deschampsia flexuosa | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 9/9/1959 | ABS | 12/11/2007 |
| + | Senecio jacobaea | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 5/9/1959 | ABS | 18/11/2007 |
| + | Anisantha sterilis | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 9/9/1959 | ABS | 19/12/2007 |
| + | Oenothera cambrica | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 9/9/1959 | ABS | 11/2/2008 |
| + | Sedum acre | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 5/9/1959 | ABS | 1/3/2008 |
| + | Tanacetum vulgare | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 5/9/1959 | ABS | 3/3/2008 |
| + | Plantago lanceolata | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 4/9/1959 | ABS | 17/3/2008 |
| + | Epilobium hirsutum | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 9/9/1959 | ABS | 28/3/2008 |
| + | Crithmum maritimum | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 9/9/1959 | ABS | 1/5/2008 |
| + | Althaea officinalis | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 4/9/1959 | ABS | 1/5/2008 |
| + | Origanum vulgare | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 9/9/1959 | ABS | 6/5/2008 |
| + | Potentilla reptans | GB, VC45 Pembrokeshire, Tenby | Barbara A G Williams | | 4/9/1959 | ABS | 13/5/2008 |
| + | Cirsium vulgare | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 9/9/1959 | ABS | 13/5/2008 |
| + | Sinapis arvensis | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 9/9/1959 | ABS | 22/7/2008 |
| + | Atriplex prostrata | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 8/9/1959 | ABS | 9/11/2008 |
| + | Silene latifolia | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 8/9/1959 | ABS | 11/11/2008 |
| + | Convolvulus arvensis | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 9/9/1959 | ABS | 15/11/2008 |
| + | Atriplex littoralis | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 9/9/1959 | ABS | 15/11/2008 |
| + | Plantago maritima | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 9/9/1959 | ABS | 24/11/2008 |
| + | Elymus pungens | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 9/9/1959 | ABS | 26/11/2008 |
| + | Foeniculum vulgare | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 9/9/1959 | ABS | 9/12/2008 |
| + | Suaeda maritima | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 9/9/1959 | ABS | 15/12/2008 |
| + | Atriplex portulacoides | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 9/9/1959 | ABS | 12/1/2009 |
| + | Myosotis arvensis | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 8/9/1959 | ABS | 12/1/2009 |
| + | Cymbalaria muralis | GB, VC44 Carmarthenshire, Burry Port | Barbara A G Williams | | 8/9/1959 | ABS | 7/2/2009 |
| + | Hieracium stenolepis | GB, VC49 Caernarvonshire, Great Ormes Head | Williams | | 7/1892 | ABS | 13/4/2008 |
| + | Osmunda regalis | GB, VC1 West Cornwall, Saint Mary's, Scilly Isles | William Henry Wilkinson | William Henry Wilkinson | 23/9/1894 | BIRM | 22/3/2008 |
| + | Asplenium trichomanes | GB, VC100 Clyde Islands, Rothesay | William Henry Wilkinson | William Henry Wilkinson | 26/5/1888 | BIRM | 5/4/2008 |
| + | Phyllitis scolopendrium | GB, VC11 South Hampshire, Christchurch | William Henry Wilkinson | William Henry Wilkinson | 3/10/1879 | BIRM | 28/4/2008 |
