| Viola riviniana | GB, VC46 Cardiganshire, Goginan, Allt Ty Cam | Andrew David Quentin Agnew | | 20/4/1997 | ABS |
| Viola riviniana | GB, VC46 Cardiganshire, Penderi Cliffs | Andrew David Quentin Agnew | | 3/4/1997 | ABS |
| Viburnum opulus | GB, VC50 Denbighshire, Fach Gynan Farm | Andrew David Quentin Agnew | | 24/6/1999 | ABS |
| Veronica chamaedrys | GB, VC46 Cardiganshire, Allt Pencnwc | Andrew David Quentin Agnew | | 22/5/1999 | ABS |
| Vaccinium myrtillus | GB, VC46 Cardiganshire, Cilcennin | Andrew David Quentin Agnew | | 16/7/1996 | ABS |
| Vaccinium myrtillus | GB, VC46 Cardiganshire, Goginan | Andrew David Quentin Agnew Shirley Agnew | | 31/3/1997 | ABS |
| Trifolium ornithopodioides | GB, VC46 Cardiganshire, Ynyslas Dunes | Andrew David Quentin Agnew | | 17/6/1983 | ABS |
| Thymus polytrichus | GB, VC46 Cardiganshire, Penderi Cliffs | Andrew David Quentin Agnew | | 5/7/1998 | ABS |
| Thlaspi arvense | GB, VC18 South Essex, Canewdon | Andrew David Quentin Agnew | | 21/8/1975 | ABS |
| Tamus communis | GB, VC46 Cardiganshire, Penderi Cliffs | Andrew David Quentin Agnew | | 9/7/1996 | ABS |
| Symphytum officinale | GB, VC46 Cardiganshire, Rhos Fullbrook | Andrew David Quentin Agnew | | 11/6/1999 | ABS |
| Stellaria uliginosa | GB, VC46 Cardiganshire, Llyn Eiddwen Reserve | Andrew David Quentin Agnew Shirley Agnew | | 2/8/1996 | ABS |
| Stellaria uliginosa | GB, VC46 Cardiganshire, Rhos Glyn yr Helyg | Andrew David Quentin Agnew | | 22/5/1999 | ABS |
| Stellaria pallida | GB, VC46 Cardiganshire, Ynyslas | Andrew David Quentin Agnew | | 9/2/1975 | ABS |
| Stellaria media | GB, VC46 Cardiganshire, Cardigan Island | Andrew David Quentin Agnew | | 3/7/1999 | ABS |
| Stellaria holostea | GB, VC46 Cardiganshire, Allt Pen-cnwc | Andrew David Quentin Agnew | | 22/5/1999 | ABS |
| Stellaria holostea | GB, VC46 Cardiganshire, Penderi Cliffs | Andrew David Quentin Agnew | | 3/4/1997 | ABS |
| Stachys palustris | GB, VC46 Cardiganshire, Borth | Andrew David Quentin Agnew | | 4/9/1975 | ABS |
| Stachys officinalis | GB, VC46 Cardiganshire, Llanrhystyd | Andrew David Quentin Agnew | | 5/7/1998 | ABS |
| Spergularia rupicola | GB, VC46 Cardiganshire, Cardigan Island | Andrew David Quentin Agnew | | 3/7/1999 | ABS |
| Spergularia rubra | GB, VC46 Cardiganshire, Borth | Andrew David Quentin Agnew | | 21/6/1975 | ABS |
| Sparganium emersum | GB, VC46 Cardiganshire, Borth | Andrew David Quentin Agnew | | 4/8/1981 | ABS |
| Solanum dulcamara | GB, VC46 Cardiganshire, Llanrhystyd | Andrew David Quentin Agnew | | 9/7/1996 | ABS |
| Silene uniflora | GB, VC46 Cardiganshire, Grogwynion | Andrew David Quentin Agnew | | 11/6/1999 | ABS |
| Silene uniflora | GB, VC46 Cardiganshire, Penderi Cliffs | Andrew David Quentin Agnew | | 9/7/1996 | ABS |
| Silene uniflora | GB, VC46 Cardiganshire, Penderi Cliffs | Andrew David Quentin Agnew | | 3/4/1997 | ABS |
| Silene dioica | GB, VC46 Cardiganshire, Allt Pencnwc | Andrew David Quentin Agnew | | 22/5/1999 | ABS |
| Silene dioica | GB, VC46 Cardiganshire, Penderi Cliffs | Andrew David Quentin Agnew | | 3/7/1996 | ABS |
| Sesleria caerulea | GB, VC69 Westmorland, Farleton Fell | Andrew David Quentin Agnew | | 3/5/1975 | ABS |
| Senecio vulgaris | GB, VC45 Pembrokeshire, Saint Davids | Andrew David Quentin Agnew | | 2/6/1975 | ABS |
| Scutellaria minor | GB, VC46 Cardiganshire, Llyn Eiddwen Reserve | Andrew David Quentin Agnew Shirley Agnew | | 2/8/1996 | ABS |
| Scutellaria galericulata | GB, VC46 Cardiganshire, Borth | Andrew David Quentin Agnew | | 6/9/1976 | ABS |
| Saxifraga aizoides | GB, VC88 Mid Perthshire, Ben Lawers | Andrew David Quentin Agnew | | 20/9/1983 | ABS |
| Sanicula europaea | GB, VC46 Cardiganshire, Allt Pencnwc | Andrew David Quentin Agnew | | 22/5/1999 | ABS |
| Salicornia europaea | GB, VC46 Cardiganshire, Aberlerry | Andrew David Quentin Agnew | | 9/9/1975 | ABS |
| Sagina nodosa | GB, VC46 Cardiganshire, Ynyslas Dunes | Andrew David Quentin Agnew | | 15/7/1975 | ABS |
| Rumex obtusifolius | GB, VC46 Cardiganshire, Borth | Andrew David Quentin Agnew | | 7/7/1975 | ABS |
| Rumex crispus | GB, VC46 Cardiganshire, Cardigan Island | Andrew David Quentin Agnew | | 3/7/1999 | ABS |
| Rumex crispus | GB, VC46 Cardiganshire, Ynyslas Dunes | Andrew David Quentin Agnew | | 7/7/1975 | ABS |
| Rumex acetosella | GB, VC46 Cardiganshire, allt ty cam | Andrew David Quentin Agnew | | 2/7/1999 | ABS |