| Carex acutiformis | GB, VC98 Argyllshire, Connel Ferry | Edward Shearburn Marshall | Watson Botanical Exchange Club Edward Shearburn Marshall | 11/7/1910 | BM |
| Carex acutiformis | GB, VC98 Argyllshire, Connel Ferry | Edward Shearburn Marshall | Arthur Bennett Charles Edgar Salmon Edward Shearburn Marshall | 11/7/1910 | BM |
| Carex acutiformis | GB, VC98 Argyllshire, Connel Ferry | Edward Shearburn Marshall | Frederick Janson Hanbury | 11/7/1910 | BM |
| Carex acutiformis | GB, VC98 Argyllshire, Connel Ferry | Edward Shearburn Marshall | Watson Botanical Exchange Club William Charles Barton | 11/7/1910 | BM |
| Carex acutiformis | GB, VC98 Argyllshire, Connel Ferry | Edward Shearburn Marshall | Edward Shearburn Marshall | 11/7/1910 | BM |
| Carex acutiformis | GB, VC98 Argyllshire, Dubh Loch | Archibald Graham Kenneth | | 20/6/1971 | BM |
| Carex acutiformis | GB, VC98 Argyllshire, Loch Craignish | Francis L. Woodman | | 7/1972 | BM |
| Carex acutiformis | GB, VC100 Clyde Islands, Great Cumbrae Island | Alexander Somerville | Botanical Exchange Club of The British Isles Alexander Somerville | 18/6/1898 | BM |
| Carex acutiformis | GB, VC100 Clyde Islands, Isles of Cumbrae | Alexander Somerville | Alexander Somerville Arthur Bennett | 16/6/1899 | BM |
| Carex acutiformis | GB, VC100 Clyde Islands, Machrie Bay | | Arthur Bennett | 5/7/1894 | BM |
| Carex acutiformis | GB, VC101 Kintyre, Crinan Canal | John Thomas Irvine Boswell-Syme | John Thomas Irvine Boswell-Syme | 6/1848 | BM |
| Carex acutiformis | GB, VC101 Kintyre, Kintyre | Archibald Graham Kenneth | | 6/1980 | BM |
| Carex acutiformis | GB, VC109 Caithness, Isauld Burn | Frederick Janson Hanbury | Frederick Janson Hanbury | 24/7/1915 | BM |
| Carex acutiformis | GB, VC109 Caithness, Reay | William Frederick Miller | Arthur Bennett | 23/7/1889 | BM |
| Carex acutiformis | GB, VC109 Caithness, Reay Burn | Mary McCallum Webster | | 10/7/1968 | BM |
| Carex acutiformis | GB, VC113 Channel Islands, Jersey | | Edward Forster | | BM |
| Carex acutiformis | IE, VCH16,VCH17, Galway | Alfred James Wilmott | | 21/6/1925 | BM |
| Carex acutiformis | IE, VCH16,VCH17, Terryland | Alfred James Wilmott | | 21/6/1925 | BM |
| 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 |