| Euphorbia cyparissias | GB, VC1 West Cornwall, Ponsanooth | Frederick Hamilton Davey | Allan Octavian Hume | 24/5/1900 | SLBI |
| Euphorbia cyparissias | GB, VC1 West Cornwall, Ponsanooth | Frederick Hamilton Davey | Allan Octavian Hume | 24/5/1900 | SLBI |
| Euphorbia cyparissias | GB, VC2 East Cornwall, Kilkhampton | William Wise | | 12/6/1925 | LAUS |
| Euphorbia cyparissias | GB, VC12 North Hampshire, Ibworth | Douglas Montague Heath | Douglas Montague Heath | 12/9/1925 | BIRM |
| Euphorbia cyparissias | GB, Sussex, Brighton | | Harold Stuart Thompson William Booth Waterfall | | BIRM |
| Euphorbia cyparissias | GB, VC15 East Kent, Dover | Eyre Champion de Crespigny | | 6/1876 | SLBI |
| Euphorbia cyparissias | GB, VC15 East Kent, Dover | Eyre Champion de Crespigny | Augustin Ley | 6/1879 | BIRM |
| Euphorbia cyparissias | GB, VC15 East Kent, Dover | Eyre Champion de Crespigny | Botanical Exchange Club of The British Isles William Hadden Beeby | 6/1879 | SLBI |
| Euphorbia cyparissias | GB, VC15 East Kent, Dover | Eyre Champion de Crespigny | Watson Botanical Exchange Club Allan Octavian Hume Frederick Townsend | 6/1879 | SLBI |
| Euphorbia cyparissias | GB, VC16 West Kent, Crayford | William Robert Sherrin | | 27/6/1925 | SLBI |
| Euphorbia cyparissias | GB, VC16 West Kent, Dartford Heath | Isaac A Helsby | Isaac A Helsby | 27/6/1925 | SLBI |
| Euphorbia cyparissias | GB, VC16 West Kent, Dartford Heath | St John Marriott | Watson Botanical Exchange Club Harold Stuart Thompson St John Marriott | 6/1925 | BIRM |
| Euphorbia cyparissias | GB, VC17 Surrey, Addlestone | M T | Dulwich College | 31/5/1891 | SLBI |
| Euphorbia cyparissias | GB, VC17 Surrey, Banstead | Philip Henry Cooke | London Natural History Society | 25/5/1939 | SLBI |
| Euphorbia cyparissias | GB, VC17 Surrey, Banstead | Philip Henry Cooke | | 26/5/1939 | SLBI |
| Euphorbia cyparissias | GB, VC17 Surrey, Box Hill | S A Chambers | | 18/8/1898 | SLBI |
| Euphorbia cyparissias | GB, VC17 Surrey, Box Hill | Charles Edgar Salmon | S A Chambers | 18/8/1898 | SLBI |
| Euphorbia cyparissias | GB, VC17 Surrey, Chertsey | Douglas Montague Heath | Douglas Montague Heath | 18/5/1927 | BIRM |
| Euphorbia cyparissias | GB, VC17 Surrey, Croydon | Stafford Edwin Chandler | Croydon Natural History and Scientific Society Stafford Edwin Chandler | 13/5/1934 | SLBI |
| Euphorbia cyparissias | GB, VC17 Surrey, Epsom Downs | Charles Edgar Salmon | Watson Botanical Exchange Club Augustin Ley Charles Edgar Salmon | 16/5/1909 | BIRM |
| Euphorbia cyparissias | GB, VC17 Surrey, Walton Downs | Edward Charles Wallace | Watson Botanical Exchange Club David Guthrie Catcheside | 23/6/1924 | SLBI |
| Euphorbia cyparissias | GB, VC17 Surrey, Walton Downs | Charles Edward Britton | Charles Edward Britton | 20/6/1920 | SLBI |
| Euphorbia cyparissias | GB, VC17 Surrey, Walton [ambiguous] | Stafford Edwin Chandler | Croydon Natural History and Scientific Society Stafford Edwin Chandler | 28/8/1946 | SLBI |
| Euphorbia cyparissias | GB, VC19 North Essex, Colchester | C J Tempere | George Stephen West | 8/1876 | BIRM |
| Euphorbia cyparissias | GB, VC19 North Essex, Roydon | J Tennyson | George Stephen West | 8/1877 | BIRM |
| Euphorbia cyparissias | GB, VC22 Berkshire, Brimpton | George Claridge Druce | Botanical Exchange Club of The British Isles Augustin Ley | 7/1910 | BIRM |
| Euphorbia cyparissias | GB, VC23 Oxfordshire, Goring | Langley Kitching | Langley Kitching | 12/6/1902 | BIRM |
| Euphorbia cyparissias | GB, VC24 Buckinghamshire, Tylers Green | Charles Edward Britton | Charles Edward Britton | 17/5/1942 | SLBI |
| Euphorbia cyparissias | GB, VC26 West Suffolk, Tuddenham | W J Cross | James Henry Augustus Steuart | 31/5/1893 | ABS |
| Euphorbia cyparissias | GB, VC27 East Norfolk, Diss | William Robert Sherrin | William Robert Sherrin | 8/1898 | SLBI |
| Euphorbia cyparissias | GB, VC34 West Gloucestershire, Hillesley | Ida Mary Roper | Watson Botanical Exchange Club Augustin Ley Ida Mary Roper | 12/6/1909 | BIRM |
| Euphorbia cyparissias | GB, VC34 West Gloucestershire, Hillsley | James Walter White | Botanical Exchange Club of The British Isles Augustin Ley | 5/8/1908 | BIRM |
| Euphorbia cyparissias | GB, VC37 Worcestershire, Kidderminster | Patrick Martin Hall | Job Edward Lousley Patrick Martin Hall | 14/5/1936 | SLBI |
| Euphorbia cyparissias | GB, VC41 Glamorganshire, Aberafan | Harry Joseph Riddelsdell | Botanical Exchange Club of The British Isles Harry Joseph Riddelsdell | 7/1904 | ABS |
| Euphorbia cyparissias | GB, VC41 Glamorganshire, Oystermouth Cultivated | Martha Maria Atwood | Donor Unknown Martha Maria Atwood | 8/1850 | BIRM |
| Euphorbia cyparissias | GB, VC59 South Lancashire, Birkdale | F C King | | 1886 | ABS |
| Euphorbia cyparissias | GB, VC60 West Lancashire, Lytham | James Cosmo Melvill | Botanical Exchange Club of The British Isles Augustin Ley | 5/1897 | BIRM |
| Euphorbia cyparissias | GB, VC60 West Lancashire, Lytham | James Cosmo Melvill | Botanical Exchange Club of The British Isles Augustin Ley James Cosmo Melvill | 8/1897 | BIRM |
| Euphorbia cyparissias | GB, VC60 West Lancashire, Lytham | James Cosmo Melvill | Botanical Exchange Club of The British Isles | 5/1899 to 1900 | ABS |
| Euphorbia cyparissias | GB, VC60 West Lancashire, Lytham | | Botanical Exchange Club of The British Isles Frederick Townsend | 5/1899 | SLBI |
| Euphorbia cyparissias | GB, VC60 West Lancashire, Lytham Saint Anne's | James Cosmo Melvill | Botanical Exchange Club of The British Isles | 5/1899 to 1900 | BIRM |
| Euphorbia cyparissias | GB, VC61,VC62,VC64, York Cultivated | Harold Stuart Thompson | Harold Stuart Thompson | 17/4/1903 | BIRM |
| Euphorbia cyparissias | GB, VC68 North Northumberland, Hulne Park | | Botanical Exchange Club of The British Isles Frederick Townsend | 10/8/1845 | SLBI |
| Euphorbia cyparissias | GB, VC69 Westmorland, Whitbarrow | St Lawrence | Frederick Arnold Lees William Hadden Beeby | 2/6/1871 | SLBI |
| Euphorbia cyparissias | GB, VC70 Cumberland, Egremont | Joseph Adair | James Henry Augustus Steuart Joseph Adair | 5/1893 | ABS |
| Euphorbia cyparissias | GB, VC70 Cumberland, Egremont | Joseph Adair | Botanical Exchange Club of The British Isles | 5/1896 | ABS |
| Euphorbia cyparissias | GB, VC70 Cumberland, Egremont | Joseph Adair | Botanical Exchange Club of The British Isles Henry & James Groves | 24/5/1895 | ABS |
| Euphorbia cyparissias | GB, VC70 Cumberland, Keswick (Sw of),Seatoller | Augustin Ley | Augustin Ley | 2/9/1871 | BIRM |
| Euphorbia cyparissias | GB, VC108 West Sutherland, Farr | Edward Shearburn Marshall | Harold Stuart Thompson | 22/7/1915 | BIRM |