| Carduus acaulis | GB, VC38 Warwickshire, Coleshill Pool | | | 1897 | BIRM |
| Carduus acaulis | GB, VC38 Warwickshire, Stratford on Avon | | | 8/1882 | BIRM |
| Carduus crispus | | | | | SHYB |
| Carduus crispus | GB, VC40 Shropshire, Stapleton | | | 8/1900 | SHYB |
| Carduus crispus | | | | | SHYB |
| Carduus nutans | GB, VC63 South-west Yorkshire, Conisborough | | | 7/1875 | ABS |
| Carduus nutans | GB, VC32 Northamptonshire, Peakirk | | | 29/8/1919 | BIRM |
| Carduus nutans | GB, Gloucestershire, Stroud | | | 10/7/1876 | DBC |
| Carduus nutans | GB, VC3 South Devon, Teignmouth | | | 1/8/1936 | SLBI |
| Carduus pycnocephalus | GB, VC113 Channel Islands, Jersey,Rozel GB, VC15 East Kent, Dover GB, VC15 East Kent, Sheppey | | | | SHYB |
| Carduus pycnocephalus subsp. tenuifolius | GB, VC1 West Cornwall, Pendennis Point | | | | SHYB |
+ | Carduus tenuiflorus | GB, VC83 Midlothian, Joppa | | | 11/6/1839 | PTH |
| Carduus tenuiflorus | GB, VC15 East Kent, Aldington | | | 2/6/1886 | ABS |
| Carduus tenuiflorus | GB, VC2 East Cornwall, Tintagel | | | 23/7/1902 | DBC |
| Carduus tenuiflorus | GB, VC9 Dorset, Swanage | | | 19/7/1904 | DBC |
+ | Carduus crispus x nutans = C. x stangii | GB, VC17 Surrey, Clandon Downs, Surrey | Anthony Hurt Wolley Dod | Charles Bailey | 29/7/1901 | MANCH |
+ | Carduus nutans x Cirsium arvense | GB, VC36 Herefordshire, Kings's Caple | Augustin Ley | Charles Bailey | 9/7/1889 | MANCH |
| Carduus pycnocephalus | GB, VC41 Glamorganshire, Sully Island | Arthur Edward Wade | Botanical Exchange Club of The British Isles National Museum of Wales | 6/1938 | SLBI |
| Carduus crispus | GB, VC17 Surrey, Reigate Hill | Albert John Crosfield | Croydon Natural History and Scientific Society Watson Botanical Exchange Club Albert John Crosfield | 7/1900 | SLBI |
| Carduus crispus x nutans = C. x stangii | GB, VC17 Surrey, Reigate Hill | Albert John Crosfield | Watson Botanical Exchange Club Allan Octavian Hume Albert John Crosfield | 7/1900 | SLBI |
| Carduus nutans | GB, VC45 Pembrokeshire, Saint David's Head | Andrew David Quentin Agnew | | 2/6/1975 | ABS |
| Carduus tenuiflorus | FR, Loraine | Andrew David Quentin Agnew Shirley Agnew | | 17/9/1998 | ABS |
| Carduus crispus x nutans = C. x stangii | GB, VC55 Leicestershire, Lowesby | Arthur Reginald Horwood | Watson Botanical Exchange Club Charles Bailey | 8/7/1905 | MANCH |
| Carduus crispus x nutans = C. x stangii | GB, VC36 Herefordshire, Sellack | Augustin Ley | Charles Bailey | 9/1888 | MANCH |
| Carduus crispus x nutans = C. x stangii | GB, VC36 Herefordshire, Saint Weonards | Augustin Ley | Botanical Exchange Club of The British Isles Charles Bailey | 19/6/1883 | MANCH |
| Carduus crispus x nutans = C. x stangii | GB, VC36 Herefordshire, Saint Weonards | Augustin Ley | Botanical Exchange Club of The British Isles Charles Bailey | 8/9/1882 | MANCH |
| Carduus crispus x nutans = C. x stangii | GB, VC23 Oxfordshire, Bicester | George Claridge Druce | Botanical Exchange Club of The British Isles Charles Bailey George Claridge Druce | 9/1884 | MANCH |
| Carduus crispus x nutans = C. x stangii | GB, VC3 South Devon, Elburton | Thomas Richard Archer Briggs | Charles Bailey | 8/7/1871 | MANCH |
| Carduus crispus x nutans = C. x stangii | GB, VC17 Surrey, Clandon Downs | | Watson Botanical Exchange Club Anthony Hurt Wolley Dod Charles Bailey | 29/7/1901 | MANCH |
| Carduus crispus x nutans = C. x stangii | GB, VC17 Surrey, East Clandon | Anthony Hurt Wolley Dod | Anthony Hurt Wolley Dod Charles Bailey | 29/7/1903 | MANCH |
| Carduus crispus x nutans = C. x stangii | GB, VC55 Leicestershire, Lowesby | Arthur Reginald Horwood | Botanical Exchange Club of The British Isles Charles Bailey | 8/7/1905 | MANCH |
| Carduus crispus x nutans = C. x stangii | GB, VC17 Surrey, Reigate Hill | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1876 | MANCH |
+ | Carduus nutans x lanceloatus | GB, VC16 West Kent, Dartford Common | Eyre Champion de Crespigny | Charles Bailey | 1877 | MANCH |
| Carduus nutans | GB, VC23 Oxfordshire, Woodstock | Robert Large Baker | Robert Large Baker | 7/1873 | BIRM |
| Carduus tenuiflorus | GB, VC45 Pembrokeshire, Tenby | Robert Large Baker | Robert Large Baker | 6/1873 | BIRM |
+ | Carduus crispus | GB, VC85 Fifeshire, St Davids | | John Hutton Balfour | 19/7/1834 | PTH |
+ | Carduus crispus | | | John Hutton Balfour | | PTH |
+ | Carduus crispus | GB, VC83 Midlothian, Currie | | John Hutton Balfour | | PTH |
+ | Carduus crispus | GB, VC83 Midlothian, Edinburgh | | John Hutton Balfour | 13/7/1822 | PTH |
+ | Carduus crispus | GB, VC83 Midlothian, Edinburgh | | John Hutton Balfour | 4/8/1824 | PTH |