| Teucrium scordium | GB, VC65 North-west Yorkshire, Bolton on Swale | | Richard Chandler Alexander Prior John Ewbank Leefe | 1837 | K |
| Stachys sylvatica x palustris = S. x ambigua | GB, VC34 West Gloucestershire, Durdham Down | Charles Cardale Babington | John Ewbank Leefe | 26/8/1836 | K |
| Salix x mollissima var. hippophaefolia | | John Ewbank Leefe | Charles Bailey | 14/5/1867 24/4/1869 21/8/1869 | MANCH |
| Salix x mollissima var. hippophaefolia | | John Ewbank Leefe | Charles Bailey | 14/5/1867 24/4/1869 21/8/1869 | MANCH |
| Salix x mollissima var. hippophaefolia | | Arthur Bennett John Ewbank Leefe | Botanical Exchange Club of The British Isles Augustin Ley | | BIRM |
| Salix x mollissima var. hippophaefolia | GB, VC36 Herefordshire, Ross | John Ewbank Leefe | Augustin Ley | 1/4/1882 26/6/1882 | BIRM |
| Salix viminalis x cinerea = S. x holosericea | | | Charles Bailey John Ewbank Leefe | 12/5/1866 to 3/9/1867 | MANCH |
| Salix viminalis x cinerea = S. x holosericea | | John Ewbank Leefe | Charles Bailey John Hardy | 16/4/1866 28/9/1867 | MANCH |
| Salix viminalis x cinerea = S. x holosericea | | John Ewbank Leefe | Richmond Museum Charles Bailey James Ward | 16/4/1866 28/9/1867 | MANCH |
| Salix viminalis x cinerea = S. x holosericea | Cultivated | John Ewbank Leefe | Charles Bailey | 20/4/1866 12/5/1866 20/9/1867 | MANCH |
| Salix viminalis x cinerea = S. x holosericea | Cultivated | John Ewbank Leefe | Charles Bailey John Hardy | 20/4/1866 to 12/5/1866 20/9/1867 | MANCH |
| Salix viminalis x cinerea = S. x holosericea | | John Ewbank Leefe | Richmond Museum Charles Bailey James Ward | 12/5/1866 to 2/5/1867 15/8/1867 to 3/9/1867 | MANCH |
| Salix viminalis x cinerea = S. x holosericea | GB, VC14 East Sussex, Lewes | John Ewbank Leefe | Arthur Bennett Arthur Waters Preston Charles Bailey | 5/4/1875 | MANCH |
| Salix viminalis x cinerea = S. x holosericea | GB, VC17 Surrey, Croydon Cultivated | John Ewbank Leefe | Charles Bailey Arthur Bennett | | MANCH |
| Salix viminalis x cinerea = S. x holosericea | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Chenevix-Trench | 9/7/1842 | MANCH |
| Salix viminalis x cinerea = S. x holosericea | GB, VC65 North-west Yorkshire, Richmond | James Ward John Ewbank Leefe | Chenevix-Trench | 9/4/1842 4/7/1842 | MANCH |
| Salix viminalis x caprea x cinerea = S. x calodendron | | John Ewbank Leefe | Charles Bailey John Ray Hardy | 21/4/1869 to 11/9/1869 | MANCH |
| Salix viminalis x caprea x cinerea = S. x calodendron | | John Ewbank Leefe | Charles Bailey | 1869 21/4/1869 | MANCH |
| Salix viminalis x caprea x cinerea = S. x calodendron | GB, VC19 North Essex, Audley End | John Ewbank Leefe | | 18/8/1842 | MANCH |
| Salix viminalis x caprea x cinerea = S. x calodendron | GB, VC19 North Essex, Audley End | John Ewbank Leefe | | 18/8/1842 | BIRM |
| Salix viminalis x caprea x aurita = S. x stipularis | Cultivated | John Ewbank Leefe | Richmond Museum Charles Bailey James Ward | 1869 | MANCH |
| Salix viminalis x caprea x aurita = S. x stipularis | | John Ewbank Leefe | Charles Bailey | 21/3/1868 21/4/1868 3/9/1868 10/10/1868 | MANCH |
| Salix viminalis x caprea x aurita = S. x stipularis | | John Ewbank Leefe | Richmond Museum Charles Bailey James Ward | 21/4/1866 to 10/10/1868 | MANCH |
| Salix viminalis x caprea x aurita = S. x stipularis | | John Ewbank Leefe | Charles Bailey John Hardy | 21/4/1866 3/9/1867 21/3/1868 10/10/1868 | MANCH |
| Salix viminalis x caprea x aurita = S. x stipularis | GB, VC85 Fifeshire, Balmuto Cultivated | John Ewbank Leefe | Augustin Ley John Thomas Irvine Boswell-Syme | 10/1877 | BIRM |
| 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, VC19 North Essex, Audley End | John Ewbank Leefe | Charles Cardale Babington | 19/3/1842 to 19/7/1842 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC19 North Essex, Audley End | John Ewbank Leefe | John Stevens Henslow | 7/5/1842 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC19 North Essex, Audley End | John Ewbank Leefe | John Stevens Henslow | 19/3/1842 19/7/1842 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 15/4/1842 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 19/3/1842 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 19/7/1842 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 24/4/1842 16/8/1842 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 9/7/1842 | BIRM |
| Salix viminalis x caprea = S. x smithiana | GB, VC65 North-west Yorkshire, Richmond | James Ward | Charles Cardale Babington John Ewbank Leefe | 7/4/1842 27/6/1842 9/7/1842 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC65 North-west Yorkshire, Richmond | James Ward | Charles Cardale Babington John Ewbank Leefe | 11/5/1842 6/8/1842 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC65 North-west Yorkshire, Richmond | James Ward | Charles Cardale Babington John Ewbank Leefe | 25/3/1842 21/6/1842 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC65 North-west Yorkshire, Richmond | James Ward | Charles Cardale Babington John Ewbank Leefe | 9/4/1842 23/7/1842 | CGE |
| Salix viminalis | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 5/4/1842 to 30/7/1842 | BIRM |
| Salix viminalis | GB, VC19 North Essex, Audley End | John Ewbank Leefe | Donor Unknown | 5/4/1842 10/7/1842 | BIRM |