| Salix viminalis x caprea = S. x smithiana | GB, VC20 Hertfordshire, Ickleford | Joseph Edward Little | Watson Botanical Exchange Club Joseph Edward Little | 18/4/1921 16/5/1921 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Ross | William Henry Purchas | IRGMA | 4/1852 31/7/1852 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC36 Herefordshire, Rudhall nr Ross-on-Wye | William Henry Purchas | IRGMA William Henry Purchas | 4/1852 30/6/1852 | LIV |
| Salix viminalis x caprea = S. x smithiana | IE, VCH25 Co. Roscommon, Ballaghaderreen | Christopher David Preston | | 22/8/1988 | CGE |
| Salix viminalis x caprea = S. x smithiana | IE, VCH25 Co. Roscommon, Ballaghaderreen | Christopher David Preston | | 22/8/1988 | CGE |
| Salix viminalis x caprea = S. x smithiana | IE, VCH6 Co. Waterford, Ballyscanlan Lough | Robert Lloyd Praeger | Robert Lloyd Praeger | 12/8/1899 | DBN |
| Salix viminalis x caprea = S. x smithiana | IE, VCH14 Laois, Abbeyleix | Robert Lloyd Praeger | Robert Lloyd Praeger | 4/7/1898 | DBN |
| Salix viminalis x caprea = S. x smithiana | IE, VCH18 Offaly, Clara | Robert Lloyd Praeger | Robert Lloyd Praeger | 30/8/1899 | DBN |
| Salix viminalis x caprea = S. x smithiana | IE, VCH19 Co. Kildare, Rathangan | Robert Lloyd Praeger | Robert Lloyd Praeger | 16/7/1898 | DBN |
| Salix viminalis x caprea = S. x smithiana | IE, VCH20 Co. Wicklow, Shillelagh | Robert Lloyd Praeger | Robert Lloyd Praeger | 4/6/1899 | DBN |
| Salix viminalis x caprea = S. x smithiana | IE, VCH22 Meath, Carragha | Donal Michael Synnott Franklyn Hugh Perring | | 15/9/1967 | DBN |
| Salix viminalis x caprea = S. x smithiana | IE, VCH22 Meath, Curragha | Donal Michael Synnott Franklyn Hugh Perring | | 15/9/1967 | DBN |
| Salix viminalis x caprea = S. x smithiana | GB, VC20 Hertfordshire, Great Wymondley | Joseph Edward Little | Joseph Edward Little | 25/7/1921 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC40 Shropshire, Dawley | William Hunt Painter | Botanical Exchange Club of The British Isles IRGMA William Hunt Painter | 4/1894 7/1894 | LIV |
| Salix viminalis x caprea = S. x smithiana | IE, VCH21 Co. Dublin, Balbriggan | M O'Leary | | 19/8/1934 | DBN |
| Salix viminalis x caprea = S. x smithiana | GB, VC55 Leicestershire, King's Norton | Arthur Reginald Horwood | Botanical Exchange Club of The British Isles Arthur Reginald Horwood Charles Edward Moss | 11/7/1904 1/9/1909 | CGE |
| Salix viminalis x caprea = S. x smithiana | | John Ewbank Leefe | Liverpool University | 21/4/1866 10/10/1868 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC29 Cambridgeshire, Cambridge | Stuart Max Walters | | 24/6/1955 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC38 Warwickshire, Pinley | Thomas Kirk | Donor Unknown | 4/1854 to 9/1854 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC50 Denbighshire, Cefn-y-rhodfa | Cambridge Botany Schppl Expedition, Wales | | 20/8/1955 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC50 Denbighshire, Llanrhaiadr-ym-Mochnant | Cambridge Botany Schppl Expedition, Wales | | 14/8/1955 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC52 Anglesey, Llyn Maelog | Christopher David Preston Nicholas F Stewart | | 27/8/1989 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC64 Mid-west Yorkshire, Otley | Christopher David Preston P P Abbott | | 22/7/1989 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC71 Isle of Man, Spaldrick Bay | David Elliston Allen | | 15/9/1952 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC93 North Aberdeenshire, Loch of Strathbeg | Christopher David Preston David Welch Peter M Hollingsworth | | 25/8/1994 | CGE |
| Salix viminalis x caprea = S. x smithiana | IE, VCH26 East Mayo, Cloonfallagh | Christopher David Preston | | 21/7/1994 | DBN |
| Salix viminalis x caprea = S. x smithiana | IE, VCH26 East Mayo, Cloonfallagh | Christopher David Preston | | 21/7/1994 | CGE |
| Salix viminalis x caprea = S. x smithiana | IE, VCH35 West Donegal, Carrowkeel | Christopher David Preston Nicholas F Stewart | | 25/8/1989 | CGE |
| Salix viminalis x caprea = S. x smithiana | IE, VCH35 West Donegal, Dunglow Lough | Christopher David Preston Nicholas F Stewart S D Webster | | 22/8/1989 | CGE |
| Salix viminalis x caprea = S. x smithiana | IE, VCH35 West Donegal, Lough Meela | Christopher David Preston Nicholas F Stewart S D Webster | | 23/8/1989 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC17 Surrey, Witley | Edward Shearburn Marshall | | 5/1890 9/1890 | SLBI |
| Salix viminalis x caprea = S. x smithiana | GB, VC20 Hertfordshire, Great Wymondley | Joseph Edward Little | Joseph Edward Little | 4/4/1921 to 25/7/1921 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC20 Hertfordshire, Great Wymondley | Joseph Edward Little | Joseph Edward Little | 25/10/1920 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC20 Hertfordshire, Great Wymondley | Joseph Edward Little | Watson Botanical Exchange Club Joseph Edward Little | 2/4/1922 5/10/1922 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC20 Hertfordshire, Hitchin | Joseph Edward Little | Botanical Exchange Club of The British Isles | 2/11/1923 16/5/1924 | MANCH |
| Salix viminalis x caprea = S. x smithiana | GB, VC20 Hertfordshire, Hitchin | Joseph Edward Little | Joseph Edward Little | 5/3/1923 4/10/1923 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC20 Hertfordshire, Hitchin | Joseph Edward Little | Joseph Edward Little | 17/6/1921 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC20 Hertfordshire, Ickleford | Joseph Edward Little | Botanical Exchange Club of The British Isles | 16/5/1924 | MANCH |
| Salix viminalis x caprea = S. x smithiana | GB, VC57 Derbyshire, Edlaston Coppy | William Richardson Linton | IRGMA | 28/4/1890 18/8/1890 | LIV |
| Salix viminalis x caprea = S. x smithiana | GB, VC57 Derbyshire, Shirley | William Richardson Linton | Set of British Willows | 1894 | CGE |