| Trifolium fragiferum | GB, VC66 County Durham, Scurton | Henry Elliott Fox | William Hunt Painter | 7/1889 | SHYB |
| Trifolium fragiferum | GB, VC113 Channel Islands, Pulias | T C Royle | | 30/7/1895 | SHYB |
| Trifolium glomeratum | GB, VC113 Channel Islands, Saint Saviour's, Guernsey | Benson | | 5/6/1890 | SHYB |
| Trifolium glomeratum | GB, VC113 Channel Islands, Saint Saviour's, Guernsey | | Richard de Gylpyn Benson | 5/6/1890 | SHYB |
| Trifolium hybridum | GB, VC16 West Kent, Beckenham | Eyre Champion de Crespigny | William Hunt Painter | 1890 | SHYB |
| Trifolium hybridum | GB, VC16,VC17, Beckenham | Eyre Champion de Crespigny | | 1890 | SHYB |
| Trifolium hybridum | GB, VC39 Staffordshire, Langley | William Hunt Painter | John (Joannis) Fraser | 9/1890 | SHYB |
| Trifolium hybridum | GB, VC40 Shropshire, Pulverbach | Richard de Gylpyn Benson | | 7/7/1894 | SHYB |
| Trifolium incarnatum | GB, VC40 Shropshire, Castle Pulverbatch | Richard de Gylpyn Benson | | 7/1891 | SHYB |
| Trifolium incarnatum | GB, VC40 Shropshire, Meole Brace | | | 1/6/1894 | SHYB |
| Trifolium incarnatum subsp. molinerii | GB, VC113 Channel Islands, Portelet Islet, Jersey | Richard Paget Murray | William Hunt Painter | 2/6/1898 | SHYB |
| Trifolium medium | GB, VC40 Shropshire, Bomere | | | 10/7/1890 | SHYB |
| Trifolium medium | GB, VC40 Shropshire, Stapleton | Richard de Gylpyn Benson | | 7/1901 | SHYB |
| Trifolium medium | GB, VC40 Shropshire, Stapleton | Richard de Gylpyn Benson | | 6/1895 | SHYB |
| Trifolium micranthum | GB, VC40 Shropshire, Pulverbach | Richard de Gylpyn Benson | | 6/1902 | SHYB |
| Trifolium ochroleucon | GB, Essex, Norton Heath | William Richardson Linton | William Hunt Painter William Richardson Linton | 6/7/1886 | SHYB |
| Trifolium ochroleucon | GB, VC31 Huntingdonshire, Buckden | Edward Francis Linton | Edward Francis Linton William Hunt Painter | 30/6/1886 | SHYB |
| Trifolium ornithopodioides | GB, VC50 Denbighshire, Colwyn Bay | Spencer Henry Bickham | William Hunt Painter | 27/5/1893 | SHYB |
| Trifolium ornithopodioides | GB, VC113 Channel Islands, L'Ancresse Common | | | 12/6/1890 | SHYB |
| Trifolium pratense | GB, VC40 Shropshire, Kingsland | | | 20/5/1888 | SHYB |
| Trifolium procumbens | GB, VC40 Shropshire, Laundry Rough | | | 14/6/1888 | SHYB |
| Trifolium procumbens | GB, VC40 Shropshire, Pulverbach | | | 7/1891 | SHYB |
| Trifolium procumbens | GB, VC40 Shropshire, Pulverbach | | | | SHYB |
| Trifolium repens | GB, VC40 Shropshire, Kingsland | Richard de Gylpyn Benson | | 19/6/1888 | SHYB |
| Trifolium scabrum | GB, VC18 South Essex, Shoeburyness | William Richardson Linton | William Hunt Painter William Richardson Linton | 7/1886 | SHYB |
| Trifolium scabrum | GB, VC40 Shropshire, Bomere Wood | | | 12/7/1888 | SHYB |
| Trifolium squamosum | GB, VC46 Cardiganshire, Borth | | | | SHYB |
| Trifolium squamosum | GB, VC46 Cardiganshire, Borth | Edwin Bernard Benson | | 7/1901 | SHYB |
| Trifolium squamosum | GB, VC113 Channel Islands, Castel | T C Royle | | 21/5/1895 | SHYB |
| Trifolium striatum | GB, VC40 Shropshire, Castle Pulverbatch | Richard de Gylpyn Benson | | 6/1897 | SHYB |
| Trifolium striatum | GB, VC40 Shropshire, Castle Pulverbatch | Richard de Gylpyn Benson | | 7/7/1894 | SHYB |
| Trifolium striatum | GB, VC40 Shropshire, Pulverbach | Richard de Gylpyn Benson | | 7/1894 | SHYB |
| Trifolium subterraneum | | | Western A Plumptre | | SHYB |
| Triglochin maritima | GB, VC3 South Devon, Totnes | | | | SHYB |
| Triglochin maritima | GB, VC6 North Somerset, Weston-super-Mare | Edwin Bernard Benson | | 7/1895 | SHYB |
| Triglochin maritima | GB, VC45 Pembrokeshire, Tenby | Edwin Bernard Benson | | 7/1892 | SHYB |
| Triglochin maritima | GB, VC48 Merionethshire, Barmouth | | | 1894 | SHYB |
| Triglochin maritima | GB, VC50 Denbighshire, Llandrillo-yn-Rhôs | W E Russell | | 9/1893 | SHYB |
| Triglochin palustris | GB, VC4 North Devon, Westward Ho! | Edwin Bernard Benson | | 7/1895 | SHYB |
| Triglochin palustris | GB, VC40 Shropshire, Marton | A Benson | | 1899 | SHYB |