| Populus alba x tremula = P. x canescens | | W B Allen | | 1/8/1902 | SHYB |
| Populus alba x tremula = P. x canescens | | | Allan Octavian Hume Frederick Townsend | | SLBI |
| Populus alba x tremula = P. x canescens | FR, Lannion, Brittany | Augustin Ley | Augustin Ley | 18/6/1909 | BIRM |
| Populus alba x tremula = P. x canescens | GB, Wiltshire, Chippenham | Augustin Ley | Augustin Ley | 10/10/1910 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC11 South Hampshire, Lyndhurst | Augustin Ley | Augustin Ley | 12/8/1882 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC14 East Sussex, Bells Yew Green | John Richard Wallis | John Richard Wallis | 1/8/1943 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC14 East Sussex, Frant | John Richard Wallis | John Richard Wallis | 2/5/1943 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC14 East Sussex, Lewes | Joseph Woods | Allan Octavian Hume Frederick Townsend | 14/8/1855 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC16 West Kent, Brenchley | John Richard Wallis | John Richard Wallis | 15/8/1942 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC16 West Kent, Pearson's Green | John Richard Wallis | | 29/3/1942 15/8/1942 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC16 West Kent, Pearsons Green | John Richard Wallis | John Richard Wallis | 14/8/1942 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC16 West Kent, Pearsons Green | John Richard Wallis | John Richard Wallis | 29/3/1942 15/8/1942 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC16 West Kent, Scotney | John Richard Wallis | John Richard Wallis | 23/5/1943 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC16 West Kent, Scotney | | John Richard Wallis | 14/8/1942 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC16 West Kent, Tunbridge Wells | Edward Gillett Gilbert | Allan Octavian Hume | 26/8/1907 | SLBI |
| Populus alba x tremula = P. x canescens | GB, Kent, Pearsons Green | John Richard Wallis | John Richard Wallis | 29/3/1942 15/8/1942 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC17 Surrey | Isaac A Helsby | Isaac A Helsby | 24/3/1925 | SLBI |
+ | Populus alba x tremula = P. x canescens | GB, VC17 Surrey, Barnes Common | Eyre Champion de Crespigny | Charles Bailey | 1888 | MANCH |
| Populus alba x tremula = P. x canescens | GB, VC17 Surrey, Abinger GB, VC17 Surrey, Ewhurst | James Walter White | William Hadden Beeby | 8/1889 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC17 Surrey, Witley | Edward Shearburn Marshall | William Hadden Beeby | 8/9/1890 | SLBI |
| 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 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 alba x tremula = P. x canescens | GB, VC23 Oxfordshire, Stow Wood | Charles Edward Hubbard | | 7/5/1944 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC28 West Norfolk, East Walton GB, VC28 West Norfolk, Narborough | Douglas Montague Heath | Douglas Montague Heath | 3/1915 to 15/5/1915 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC31 Huntingdonshire, Sawtry | William Richardson Linton | Botanical Exchange Club of The British Isles Augustin Ley William Richardson Linton | 20/4/1885 3/9/1885 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC34 West Gloucestershire, Clifton | James Walter White | Watson Botanical Exchange Club Harold Stuart Thompson | 20/3/1912 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC34 West Gloucestershire, Clifton | James Walter White | Watson Botanical Exchange Club | 20/3/1912 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC34 West Gloucestershire, Mangotsfield | James Walter White | Watson Botanical Exchange Club Harold Stuart Thompson | 26/3/1913 7/1915 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC34 West Gloucestershire, Mangotsfield | James Walter White | Watson Botanical Exchange Club | 26/3/1913 to 7/1915 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC34 West Gloucestershire, Olveston | Augustin Ley | Augustin Ley | 18/8/1909 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC34 West Gloucestershire, Westbury on Trym | Ida Mary Roper | Watson Botanical Exchange Club Ida Mary Roper William Robert Sherrin | 27/2/1914 24/7/1914 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC35 Monmouthshire, Piercefield | Augustin Ley | Augustin Ley | 20/6/1872 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC36 Herefordshire, Eardisley | | Augustin Ley | 18/10/1887 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC36 Herefordshire, Netherton | Augustin Ley | Augustin Ley | 4/8/1881 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC36 Herefordshire, Weobley | Augustin Ley | Augustin Ley | 30/8/1882 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC38 Warwickshire, Coventry | Thomas Kirk | Donor Unknown | 5/1855 to 10/1855 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC38 Warwickshire, Offchurch | | Robert Large Baker | 6/1874 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC39 Staffordshire, Wolverhampton | | John (Joannis) Fraser | 15/3/1875 30/9/1875 | SLBI |
| Populus alba x tremula = P. x canescens | GB, VC49 Caernarvonshire, Aber | Augustin Ley | Augustin Ley | 18/8/1886 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC55 Leicestershire, Ashby Parva | Augustin Ley | Augustin Ley | 6/1892 | BIRM |
| 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 x tremula = P. x canescens | GB, VC57 Derbyshire, Wyaston | William Richardson Linton | Augustin Ley | 19/4/1907 | BIRM |
| Populus alba x tremula = P. x canescens | GB, VC57 Derbyshire, Wyaston | William Richardson Linton | Augustin Ley | 30/7/1907 | BIRM |
| Populus alba x tremula = P. x canescens | RO, OraviĊ£a-Ciclova | Wierzbicki | Allan Octavian Hume Frederick Townsend | 4/1840 | SLBI |
| Populus canescens | GB, VC17 Surrey, Merton | Charles Edward Britton | Charles Edward Britton | 13/7/1914 | SLBI |