| Carex acutiformis | IE, VCH16,VCH17, Terryland | Alfred James Wilmott | | 21/6/1925 | BM |
| Carex acutiformis | IE, VCH6 Co. Waterford, Clonea Castle | Richard Manliffe Barrington | Arthur Bennett Charles Edgar Salmon | 26/5/1899 | BM |
| Carex acutiformis | IE, VCH10 North Tipperary, Dundrum | Richard John Pankhurst | | 30/7/1975 | BM |
| Carex acutiformis | IE, VCH13 Co. Carlow, Aghade | Robert Lloyd Praeger | | 4/6/1899 | BM |
| Carex acutiformis | IE, VCH16 West Galway, Oughterard | Arthur Oliver Chater | | 11/7/1967 | BM |
| Carex acutiformis | IE, VCH17 North-east Galway, Abbey of Ross | | Robert James Shuttleworth | 6/1832 | BM |
| Carex acutiformis | IE, VCH17 North-east Galway, Headford | | Robert James Shuttleworth | | BM |
| Carex acutiformis | IE, VCH19 Co. Kildare, Nurney | Robert Lloyd Praeger | Robert Lloyd Praeger | 18/7/1897 | BM |
| Carex acutiformis | IE, VCH23 Westmeath, Lough Drin | Edward Francis Linton | Edward Francis Linton | 19/7/1895 | BM |
| Carex acutiformis x acuta = C. x subgracilis | GB, VC17 Surrey, Sunbury,Sunbury Lock | Henry Groves James Groves | James Groves | 5/6/1880 | BM |
| Carex acutiformis x acuta = C. x subgracilis | GB, VC17 Surrey, Sunbury,Sunbury Lock | Henry Groves | James Groves | 5/6/1880 | BM |
| Carex acutiformis x acuta = C. x subgracilis | GB, VC18 South Essex, Walthamstow | B M Survey | | 26/5/1993 | BM |
| Carex acutiformis x acuta = C. x subgracilis | GB, VC18 South Essex, Walthamstow | B M Survey | | 26/5/1993 | BM |
| Carex acutiformis x acuta = C. x subgracilis | GB, VC18 South Essex, Walthamstow Marshes | Brian Stuart Wurzell | | 1981 | BM |
| Carex acutiformis x acuta = C. x subgracilis | GB, VC75 Ayrshire, Ardrossan | Bryan Simpson | | 9/1983 | BM |
| Carex acutiformis x riparia = C. x sooi | GB, VC6 North Somerset, Sharpham Moor | Harold Stuart Thompson | Arthur Bennett | 1/7/1916 | BM |
| Carex acutiformis x riparia = C. x sooi | GB, VC27 East Norfolk, Southrepps common | Jack Bailey Evans | | 2/7/1957 | BM |
| Carex acutiformis x riparia = C. x sooi | GB, VC28 West Norfolk, Brandon | Edward Francis Linton | | 15/6/1887 | BM |
| Carex acutiformis x riparia = C. x sooi | GB, VC41 Glamorganshire, Peterston | Harry Joseph Riddelsdell | Edward Francis Linton | 7/1904 | BM |
| Carex acutiformis x riparia = C. x sooi | GB, VC41 Glamorganshire, Peterston | Harry Joseph Riddelsdell | Harry Joseph Riddelsdell William Charles Barton | 7/1904 | BM |
| Carex acutiformis x riparia = C. x sooi | GB, VC63,VC64, Rawdon | | Arthur Bennett Frederick Janson Hanbury | 7/9/1911 | BM |
| Carex acutiformis x riparia = C. x sooi | GB, VC63,VC64, Rawdon | | Arthur Bennett Charles Edgar Salmon | 7/1909 | BM |
| Carex acutiformis x riparia = C. x sooi | GB, VC66 County Durham, Bishop Aukland | J P Soutter | Edward Francis Linton | 7/1876 | BM |
| Carex acutiformis x vesicaria = C. x ducellieri | GB, VC11 South Hampshire, Ebblake Bog | J Crewe Michael Porter R M Walls | | 15/6/2002 | BM |
| Carex appropinquata | GB, VC20 Hertfordshire, Harefield | John Benbow | John Benbow | 5/1885 | BM |
| Carex appropinquata | GB, VC20 Hertfordshire, Harefield | | John Roffey | 12/5/1908 | BM |
| Carex appropinquata | GB, VC20 Hertfordshire, Harefield GB, VC20 Hertfordshire, Rickmansworth | Charles Edgar Salmon Herbert William Pugsley | Charles Edgar Salmon | 4/6/1910 | BM |
| Carex appropinquata | GB, VC20 Hertfordshire, Rickmansworth | Charles Edgar Salmon Herbert William Pugsley | Charles Edgar Salmon | 4/6/1910 | BM |
| Carex appropinquata | GB, VC21 Middlesex, Cowley | John Benbow | | 6/1884 | BM |
| Carex appropinquata | GB, VC21 Middlesex, Harefield | Albert Bruce Jackson William Bertram Turrill | William Charles Barton | 7/1909 | BM |
| Carex appropinquata | GB, VC21 Middlesex, Harefield | John Benbow | John Benbow | 3/6/1893 | BM |
| Carex appropinquata | GB, VC21 Middlesex, Harefield | John Benbow | | 6/1885 | BM |
| Carex appropinquata | GB, VC21 Middlesex, Harefield | John Benbow | John Benbow | 5/1885 | BM |
| Carex appropinquata | GB, VC21 Middlesex, Harefield | John Benbow | John Benbow | 5/1885 | BM |
| Carex appropinquata | GB, VC21 Middlesex, Harefield | John Benbow | John Benbow | 7/1885 | BM |
| Carex appropinquata | GB, VC21 Middlesex, Harefield | Alfred Loydell | Alfred Loydell James Eddowes Cooper | 5/7/1909 | BM |
| Carex appropinquata | GB, VC21 Middlesex, Harefield | | James Eddowes Cooper | 20/5/1920 | BM |
| Carex appropinquata | GB, VC21 Middlesex, Harefield | Job Edward Lousley | Job Edward Lousley Patrick Martin Hall | 16/5/1936 | BM |
| Carex appropinquata | GB, VC21 Middlesex, Harefield | William Edward Nicholson | Thomas Hilton | 25/5/1896 | BM |
| Carex appropinquata | GB, VC21 Middlesex, Harefield | Cecil Rollo Payton Andrews Herbert William Pugsley | | 9/6/1900 | BM |