| Carex hostiana x lepidocarpa = C. x fulva | GB, VC28 West Norfolk, Lynn | Richard Charles L'Estrange Burges | | 8/7/1945 | BIRM |
| Carex hostiana x lepidocarpa = C. x fulva | GB, VC69 Westmorland, Roudsea Wood | Denis John Carr | University of Manchester | 7/1948 | ABS |
| Carex hostiana x lepidocarpa = C. x fulva | GB, VC69 Westmorland, Roudsea Wood | Denis John Carr | University of Manchester | 7/1948 | ABS |
+ | Carex hostiana x lepidocarpa = C. x fulva | GB, VC88 Mid Perthshire, Glen Lyon | Edward Francis Linton | | 1/8/1891 | PTH |
+ | Carex hostiana x lepidocarpa = C. x fulva | GB, VC88 Mid Perthshire, Glen Lyon | William Richardson Linton | | 1/8/1891 | PTH |
+ | Carex hostiana x lepidocarpa = C. x fulva | GB, VC88 Mid Perthshire, Killin | Peter Ewing | | 12/1907 | PTH |
+ | Carex hostiana x lepidocarpa = C. x fulva | GB, VC88 Mid Perthshire, Killin | Edward Francis Linton | | 17/7/1891 | PTH |
+ | Carex hostiana x lepidocarpa = C. x fulva | GB, VC89 East Perthshire, Spittal of Glenshee | Edward Shearburn Marshall | | 30/7/1892 | PTH |
| Carex hostiana x lepidocarpa = C. x fulva | GB, VC111 Orkney, Piggar | William Irvine Fortescue | Botanical Exchange Club of The British Isles Augustin Ley | 1/9/1883 | BIRM |
| Carex hostiana x lepidocarpa = C. x fulva | IE, Galway, Maarn | Edward Shearburn Marshall | Botanical Exchange Club of The British Isles | 5/7/1895 | ABS |
| Carex hostiana x lepidocarpa = C. x fulva | IE, VCH20 Co. Wicklow, Ballymen Glen | Richard Charles L'Estrange Burges | | 6/6/1937 | BIRM |
| Carex hostiana x lepidocarpa = C. x fulva | IE, VCH28 Co. Sligo, Benbulben | Richard Charles L'Estrange Burges | | 17/6/1937 | BIRM |
| Carex hostiana x viridula = C. x fulva | GB, VC18 South Essex, Epping Forest | D A J Little | | 8/6/1947 | ABS |
| Carex hostiana x viridula = C. x fulva | GB, VC18 South Essex, Epping Forest | D A J Little | | 15/6/1947 | ABS |
| Carex hostiana x viridula = C. x fulva | GB, VC22 Berkshire, Cothill | George Claridge Druce | Augustin Ley | 7/1890 | BIRM |
| Carex hostiana x viridula = C. x fulva | GB, VC46 Cardiganshire, Cors y Sychant | Andrew David Quentin Agnew | | 6/7/1999 | ABS |
| Carex hostiana x viridula = C. x fulva | GB, VC49 Caernarvonshire, Snowdon | Richard de Gylpyn Benson | | 1891 | SHYB |
| Carex hostiana x viridula = C. x fulva | GB, VC64 Mid-west Yorkshire, Malham | Philip Frank Wareing | | 7/1952 | ABS |
+ | Carex hostiana x viridula = C. x fulva | GB, VC88 Mid Perthshire, Blair Atholl | Anthony Clive Jermy John Lowell | John Lowell | 3/8/1995 | MANCH |
| Carex hostiana x viridula = C. x fulva | GB, VC90 Angus, Clova | William Richardson Linton | Botanical Exchange Club of The British Isles William Richardson Linton | 11/7/1889 | ABS |
| Carex hostiana x viridula = C. x fulva | GB, VC108 West Sutherland, Tongue | Edward Shearburn Marshall | Botanical Exchange Club of The British Isles | 3/7/1900 | ABS |
| Carex hostiana x viridula = C. x fulva | IE, VCH9 Co. Clare, Mullagh More | Peter Sherlock Wyse Jackson | Irish Biogeographical Society Trinity College, Dublin | 19/6/1979 | GALW |
| Carex hostiana x viridula = C. x fulva | IE, VCH9 Co. Clare, Mullagh More | Peter Sherlock Wyse Jackson | Irish Biogeographical Society Trinity College, Dublin | 19/6/1979 | GALW |