| Zannichellia palustris subsp. pedicellata | GB, VC1 West Cornwall, Gunwalloe | Charles Alexander Johns | John Stevens Henslow | 8/1837 | BIRM |
+ | Vicia lutea | GB, VC9 Dorset, Weymouth | John Stevens Henslow | Warrington Museum William Wilson | | MANCH |
+ | Vicia bithynica | GB, Kent, Kent,Frindsbury | John Stevens Henslow | William Wilson | 26/6/1827 | MANCH |
| Veronica spicata | GB, VC29 Cambridgeshire, Newmarket Heath | John Stevens Henslow | William Jackson Hooker | 28/7/1823 | K |
| Verbascum pulverulentum | GB, VC26 West Suffolk, Bury Saint Edmunds | | Botanical Society of Edinburgh John Stevens Henslow | 7/1841 | K |
| Verbascum pulverulentum | GB, VC26 West Suffolk, Bury Saint Edmunds | John Stevens Henslow | George Lloyd William Groves Perry Botanical Society of Edinburgh | 7/1841 | K |
+ | Trifolium ochroleucon | GB, VC29 Cambridgeshire, Cambridge,Hinton | John Stevens Henslow | Warrington Museum William Wilson | 26/6/1826 | MANCH |
| Trifolium fragiferum | GB, VC15 East Kent, Sandown | | Botanical Society of Edinburgh John Stevens Henslow | 1838 | BON |
+ | Torilis arvensis | GB, VC22 Berkshire, Cholsey | John Stevens Henslow | Charles Bailey James Ward | 9/7/1835 | MANCH |
+ | Teucrium scordium | GB, VC29 Cambridgeshire, Ely | John Stevens Henslow | Warrington Museum William Wilson | 31/7/1826 | MANCH |
+ | Teucrium scordium | GB, VC29 Cambridgeshire, Ely | John Stevens Henslow | Warrington Museum William Wilson | 5/8/1826 | MANCH |
| Tephroseris integrifolia | GB, VC29 Cambridgeshire, Gog Magog | John Stevens Henslow | Richard Chandler Alexander Prior | 5/1836 | K |
| Tephroseris integrifolia | GB, VC29 Cambridgeshire, Gog Magog | John Stevens Henslow | | 24/5/1834 | K |
| Tephroseris integrifolia | GB, VC29 Cambridgeshire, Gog Magog Hills | John Stevens Henslow | | | K |
| Taxus baccata | GB, Kent, Cuxton | John Stevens Henslow | Charles Ottley Groom | 1852 | BON |
| Spiranthes spiralis | GB, VC27 East Norfolk, Cley | | John Stevens Henslow | 8/1834 | BR |
+ | Silene otites | GB, VC26 West Suffolk, Mildenhall | Hooker John Stevens Henslow William Borrer | Warrington Museum William Wilson | 3/6/1829 | MANCH |
+ | Silene noctiflora | GB, VC29 Cambridgeshire, Bottisham | John Stevens Henslow | Warrington Museum William Wilson | 7/7/1830 | MANCH |
+ | Silene conica | GB, VC15 East Kent, Deal | John Stevens Henslow | Warrington Museum William Wilson | 29/7/1826 | MANCH |
+ | Senecio erucifolius | GB, VC22 Berkshire, Cholsey | John Stevens Henslow | John Hutton Balfour | 15/8/1835 | PTH |
| 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, VC65 North-west Yorkshire, Richmond | James Ward | John Stevens Henslow | 25/3/1842 9/4/1842 22/4/1842 21/6/1842 9/7/1842 23/7/1842 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC65 North-west Yorkshire, Richmond | James Ward | John Stevens Henslow | 9/4/1842 27/6/1842 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC65 North-west Yorkshire, Richmond | James Ward | John Stevens Henslow | 11/5/1842 to 8/6/1842 | CGE |
| Salix viminalis x caprea = S. x smithiana | GB, VC65 North-west Yorkshire, Richmond | James Ward | John Stevens Henslow | 7/4/1842 9/7/1842 | CGE |
| Salix fragilis x alba = S. x rubens | GB, VC65 North-west Yorkshire, Easby | James Ward | John Stevens Henslow | 4/5/1842 16/7/1842 | CGE |
| Salix arbuscula | GB, VC98 Argyllshire, Ben Cruachan | J Hooker | John Stevens Henslow | | BIRM |
+ | Roemeria hybrida | GB, VC29 Cambridgeshire, Cambridge | John Stevens Henslow | John Hutton Balfour | 1835 | PTH |
+ | Roemeria hybrida | GB, VC29 Cambridgeshire, Reach | John Stevens Henslow | John Hutton Balfour | 6/1828 | PTH |
+ | Roemeria hybrida | GB, VC29 Cambridgeshire, Reach | John Stevens Henslow | John Hutton Balfour | 6/1828 | PTH |
| Pyrola minor | GB, VC65 North-west Yorkshire, Richmond | John Stevens Henslow | John Eddowes Bowman | | MANCH |
+ | Pulsatilla vulgaris | GB, VC29 Cambridgeshire, Bartlow | John Stevens Henslow | Warrington Museum William Wilson | 8/8/1826 | MANCH |
| Pulsatilla vulgaris | GB, VC29 Cambridgeshire, Cambridge | John Stevens Henslow William Strong Hore | John Ralfs | 1838 | SLBI |
+ | Pulsatilla vulgaris | GB, VC29 Cambridgeshire, Gog Magog Hills | John Stevens Henslow | John Hutton Balfour | 5/5/1835 | PTH |
+ | Pulsatilla vulgaris | GB, VC29 Cambridgeshire, Gog Magog Hills | John Stevens Henslow | William Wilson | 28/4/1830 | MANCH |
+ | Pulicaria vulgaris | GB, VC18 South Essex, Downham | John Stevens Henslow | Warrington Museum William Wilson | 18/8/1827 | MANCH |
| Primula elatior | GB, Suffolk | John Stevens Henslow | Allan Octavian Hume Frederick Townsend | 5/1845 | SLBI |
+ | Potentilla argentea | GB, VC27 East Norfolk | John Stevens Henslow | Warrington Museum William Wilson | 7/1824 | MANCH |
| Potamogeton coloratus x berchtoldii = P. x lanceolatus | GB, VC52 Anglesey, Anglesey | John Stevens Henslow | John Stevens Henslow | 1826 | E |