| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC2 East Cornwall, Calstock | Allan Octavian Hume | Allan Octavian Hume | 30/7/1901 | SLBI |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC2 East Cornwall, Calstock | Thomas Richard Archer Briggs | Augustin Ley | 7/9/1875 | BIRM |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC2 East Cornwall, East Cornwall,Calstock | Allan Octavian Hume | Allan Octavian Hume | 30/7/1901 | SLBI |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC3 South Devon, Calstock | William Curnow | | 8/1880 | ABS |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC3 South Devon, Calstock | | John Ralfs | 7/1875 | SLBI |
+ | Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC2,VC3, East Cornwall,Calstock | John Ralfs | Charles Bailey | 8/1876 | MANCH |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC13 West Sussex, Amberley | Job Edward Lousley | Job Edward Lousley | 9/8/1930 | SLBI |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC13 West Sussex, Amberley | Charles Edgar Salmon Edward Shearburn Marshall | Watson Botanical Exchange Club Harold Stuart Thompson | 3/9/1901 | BIRM |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC13 West Sussex, Houghton | Job Edward Lousley | Job Edward Lousley | 10/8/1930 | SLBI |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC13 West Sussex, River Arun | Frederick Henry Arnold | | 3/7/1875 | BON |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC13 West Sussex, River Arun | John Frederick Rayner | | 8/1925 | SLBI |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC13 West Sussex, Stopham | Edward Charles Wallace | Edward Charles Wallace Job Edward Lousley | 25/6/1933 | SLBI |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC15 East Kent, Folkestone,East Wear Bay | Gerard Edwards Smith | | | MANCH |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC16 West Kent, Greenwich | | Frederick Townsend | 5/1830 | SLBI |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, Kent, Aylesford | | Douglas Montague Heath | 7/9/1926 | BIRM |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Barnes | | Croydon Natural History and Scientific Society | 1864 | SLBI |
+ | Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Barnes | Eyre Champion de Crespigny | Charles Bailey | 1884 | MANCH |
+ | Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Barnes | Eyre Champion de Crespigny | Charles Bailey | 1883 | MANCH |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Barnes | William Hadden Beeby | William Hadden Beeby | 31/8/1872 | SLBI |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Barnes | Job Edward Lousley | Job Edward Lousley | 18/7/1925 | SLBI |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Battersea | | | | MANCH |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Battersea | | | | SLBI |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Battersea | John Ellerton Stocks | | 8/1842 | BON |
+ | Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Kew | Baker | Charles Bailey | 8/1877 | MANCH |
+ | Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Kew | Jackson | Botanical Exchange Club of The British Isles Charles Bailey | 9/1907 to 10/1907 | MANCH |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Kew | John Gilbert Baker | | 8/1877 | BON |
+ | Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Kew | D Doxey | D Doxey | 23/9/1939 | MANCH |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Kew | Albert Bruce Jackson | Botanical Exchange Club of The British Isles Augustin Ley | 9/1907 10/1907 | BIRM |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Kew | Philip Brookes Mason | Philip Brookes Mason | 1872 | BON |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Kew | Robert Hugh Bunting William Robert Sherrin | William Robert Sherrin | 7/1906 | SLBI |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Kew Bridge | Richard Charles L'Estrange Burges | | 8/9/1942 | BIRM |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Kew Bridge | Richard Charles L'Estrange Burges | | 8/9/1942 | BIRM |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Kew Bridge | Job Edward Lousley | Job Edward Lousley | 16/8/1939 | SLBI |
+ | Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Mortlake | Eyre Champion de Crespigny | Charles Bailey | 9/1879 | MANCH |
+ | Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Mortlake | Eyre Champion de Crespigny | Charles Bailey | 1873 to 1879 | MANCH |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Mortlake | Job Edward Lousley | Job Edward Lousley | 5/9/1931 | SLBI |
+ | Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Putney | Henry & James Groves | Charles Bailey | 7/1874 | MANCH |
+ | Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Putney | Henry & James Groves | Charles Bailey | 8/1874 | MANCH |
+ | Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Putney | Hewett Cottrell Watson | Charles Bailey | 1873 | MANCH |
| Schoenoplectus lacustris x triqueter = S. x carinatus | GB, VC17 Surrey, Putney | Henry Groves | George Stephen West Henry Groves | 8/1874 | BIRM |