| Populus nigra | GB, VC17 Surrey, Kew Bridge | | | 30/5/1942 | SLBI |
| Populus nigra x deltoides = P. x canadensis | GB, VC58 Cheshire, Little Leigh | | | 3/5/1919 | MANCH |
| Populus nigra x deltoides = P. x canadensis | GB | | | | MANCH |
| Populus tremula | GB, VC10 Isle of Wight | | | 1862 | SLBI |
| Populus nigra | GB, VC40 Shropshire, Pontesbury | | Croydon Natural History and Scientific Society Henry Franklin Parsons | 3/9/1884 | SLBI |
| Populus nigra | GB, VC11 South Hampshire, Hordle | | Croydon Natural History and Scientific Society Henry Franklin Parsons | 29/4/1898 | SLBI |
| Populus nigra | GB, VC17 Surrey, Limpsfield | Henry Franklin Parsons | Croydon Natural History and Scientific Society | 19/6/1898 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC38 Warwickshire, Coventry | Thomas Kirk | Donor Unknown | 5/1855 to 10/1855 | BIRM |
| Populus nigra | GB, VC23 Oxfordshire, Oxford,Christchurch meadows | George Claridge Druce | Botanical Exchange Club of The British Isles Druce Herbarium, Oxford Augustin Ley | 5/1910 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC20 Hertfordshire, Hitchin | W.J. Housden | Watson Botanical Exchange Club | 20/3/1926 to 26/9/1926 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC20 Hertfordshire, Stevenage | Joseph Edward Little | Watson Botanical Exchange Club | 9/3/1927 to 22/6/1927 | SLBI |
| Populus balsamifera | IE, VCH39 Co. Antrim, Derriaghy | Ida Mary Roper | Watson Botanical Exchange Club Ida Mary Roper | 26/8/1925 | SLBI |
| Populus deltoides | GB, VC20 Hertfordshire, Saint Ippolyts Cultivated | | Watson Botanical Exchange Club | 15/4/1925 3/9/1925 | SLBI |
| Populus tremula | GB, VC20 Hertfordshire, Datchworth | Joseph Edward Little | Watson Botanical Exchange Club Job Edward Lousley Joseph Edward Little | 27/2/1927 to 22/7/1927 | SLBI |
| Populus tremula | GB, VC20 Hertfordshire, Ickleford | Joseph Edward Little | Watson Botanical Exchange Club | 15/3/1927 to 13/5/1927 | SLBI |
| Populus tremula | GB, VC34 West Gloucestershire, Bristol | Ida Mary Roper | Watson Botanical Exchange Club Ida Mary Roper | 11/3/1922 to 20/10/1922 | SLBI |
| Populus alba x tremula = P. x canescens | | W B Allen | | 1/8/1902 | SHYB |
| Populus alba | GB, VC6 North Somerset, Burnham | Martha Maria Atwood | Donor Unknown | 8/1853 | BIRM |
| Populus nigra x deltoides = P. x canadensis | GB, VC62 North-east Yorkshire, Thirsk | | Charles Bailey John Wilson Rimington Spencer Henry Bickham | 1852 | MANCH |
| Populus nigra x deltoides = P. x canadensis | GB, VC23 Oxfordshire, Oxford,Christchurch meadows | George Claridge Druce | Botanical Exchange Club of The British Isles Charles Bailey | 9/1907 | MANCH |
| Populus nigra x deltoides = P. x canadensis | GB, VC55 Leicestershire, Quorn | Frances Louisa Foord-Kelcey | Watson Botanical Exchange Club Charles Bailey Frances Louisa Foord-Kelcey | 13/4/1906 to 16/7/1906 | MANCH |
| Populus nigra x deltoides = P. x canadensis | GB, VC55 Leicestershire, Quorn | Frances Louisa Foord-Kelcey | Watson Botanical Exchange Club Charles Bailey Frances Louisa Foord-Kelcey | 13/4/1906 to 16/7/1906 | MANCH |
| Populus nigra x deltoides = P. x canadensis | GB, VC55 Leicestershire, Quorndon | Frances Louisa Foord-Kelcey | Watson Botanical Exchange Club Charles Bailey Frances Louisa Foord-Kelcey | 13/8/1907 | MANCH |
| Populus alba | GB, VC38 Warwickshire, Avon Dassett | | Robert Large Baker | | BIRM |
| Populus alba | GB, VC32 Northamptonshire, Kings Sutton | Robert Large Baker | | 1874 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC38 Warwickshire, Offchurch | | Robert Large Baker | 6/1874 | BIRM |
| Populus nigra | GB, VC45 Pembrokeshire, Tenby | | Robert Large Baker | 6/1873 | BIRM |
| Populus alba | GB, VC17 Surrey, Reigate Heath | William Hadden Beeby | William Hadden Beeby | 31/8/1884 | SLBI |
| Populus nigra | GB, VC34 West Gloucestershire, Durdham Down | | William Hadden Beeby | 4/1878 | SLBI |
| Populus tremula var. villosa | | William Hadden Beeby | William Hadden Beeby | | SLBI |
| Populus tremula | GB, VC17 Surrey, Devils Punch Bowl | William Hadden Beeby | William Hadden Beeby | 2/8/1885 | SLBI |
| Populus tremula var. villosa | GB, VC34 West Gloucestershire, Stapleton,Frome | | Botanical Exchange Club of The British Isles William Hadden Beeby | 8/1878 | SLBI |
| Populus tremula var. villosa | GB, VC12 North Hampshire, Aldershot, North Camp | William Hadden Beeby | William Hadden Beeby | 23/5/1886 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC55 Leicestershire, Charnack Hill | William Bell | Botanical Exchange Club of The British Isles Augustin Ley | 7/1908 | BIRM |
| Populus alba | Horse Boat | Richard de Gylpyn Benson | | 5/5/1891 | SHYB |
| Populus nigra | GB, VC40 Shropshire, Longden Common | Richard de Gylpyn Benson | | 4/1894 | SHYB |
| Populus alba x tremula = P. x canescens | GB, VC18 South Essex, Wanstead | John Thomas Irvine Boswell-Syme | Donor Unknown John Thomas Irvine Boswell-Syme | 1853 | BIRM |
| Populus alba | GB, VC12 North Hampshire, Kings Worthy | J Breach | Croydon Natural History and Scientific Society J Breach Robert Russell Hutchinson | 25/3/1834 | SLBI |
| Populus nigra | GB, VC11 South Hampshire, Winchester, St Cross | J Breach | Croydon Natural History and Scientific Society J Breach | 10/3/1834 | SLBI |
| Populus alba | GB, VC17 Surrey, Raynes Park Cultivated | Charles Edward Britton | Charles Edward Britton | 12/7/1911 | SLBI |