| Agrostis capillaris | GB, VC38 Warwickshire, Coleshill Pool | William Thomas Bree | John Stevens Henslow | 7/1832 | BIRM |
| Calluna vulgaris var. hirsuta | GB, VC106,VC107, Bonar Bridge | Graham | John Stevens Henslow | 1/8/1833 | BIRM |
| Carex dioica | GB, VC88 Mid Perthshire, Breadalbane Mountains | William Wilson | John Stevens Henslow | 27/7/1827 | BIRM |
| Carex nigra | GB, VC90 Angus, Clova Mountains | Robert Kaye Greville | John Stevens Henslow | 1832 | BIRM |
| Crocus biflorus | GB, VC26 West Suffolk, Great Barton | Charles James Fox Bunbury | John Stevens Henslow | 19/3/1830 | BIRM |
| Crocus flavus | GB, VC26 West Suffolk, Barton | Charles James Fox Bunbury | John Stevens Henslow | 19/3/1830 | BIRM |
| Crocus flavus | GB, VC26 West Suffolk, Great Barton | Joseph Dalton Hooker William Christy | John Stevens Henslow | 3/1831 | BIRM |
| Daucus carota | GB, VC30 Bedfordshire, Potton | John Stevens Henslow | John Stevens Henslow | 22/6/1829 | BIRM |
| Helictotrichon planiculmis | GB, VC100 Clyde Islands, Arran Cultivated | J Hooker | John Stevens Henslow | | BIRM |
| Isolepis cernua | GB, VC74 Wigtownshire, East Tarbet | Balfour | John Stevens Henslow | | BIRM |
| Isolepis cernua | IE, VCH16,VCH27, Leenane | Charles Cardale Babington | John Stevens Henslow | 25/8/1835 | BIRM |
| Molinia caerulea | GB, VC90 Angus, Clova Mountains | Graham Robert Kaye Greville | John Stevens Henslow | 1832 | BIRM |
| Phalaris paradoxa | GB, VC9 Dorset, Isle of Purbeck | I Austen | John Stevens Henslow | | BIRM |
| Poa alpina | GB, VC49 Caernarvonshire, Snowdon | E Holmes | John Stevens Henslow | 7/1832 | BIRM |
| Poa alpina | GB, VC90 Angus, Glen Isla | Robert Kaye Greville | John Stevens Henslow | 1832 | BIRM |
| Salix arbuscula | GB, VC98 Argyllshire, Ben Cruachan | J Hooker | John Stevens Henslow | | BIRM |
| Zannichellia palustris subsp. pedicellata | GB, VC1 West Cornwall, Gunwalloe | Charles Alexander Johns | John Stevens Henslow | 8/1837 | BIRM |
| Carex canescens | GB, VC40 Shropshire, Ellesmere | John Stevens Henslow | Saint Bartholemews Hospital | 1835 | BM |
| Carex lasiocarpa | GB, VC29 Cambridgeshire, Swaffham | John Stevens Henslow | | 26/5/1834 | BM |
| Carex paniculata | GB, VC29 Cambridgeshire, Fulbourne | John Stevens Henslow | Frederick Janson Hanbury John Thomas Irvine Boswell-Syme | 26/5/1834 | BM |
| Festuca pratensis x Lolium perenne = x Festulolium loliaceum | GB, VC29 Cambridgeshire, Ely | John Stevens Henslow | Charles Ottley Groom | 2/9/1833 | BON |
| Fritillaria meleagris | GB, VC25 East Suffolk, Framsden | John Stevens Henslow | Botanical Society of Edinburgh | 4/5/1836 | BON |
| Lemna gibba | GB, VC22 Berkshire, Cholsey | John Stevens Henslow | Mantua And Montferrat | 7/1835 | BON |
| Melica uniflora | GB, VC22 Berkshire, Cholsey | John Stevens Henslow | Mantua And Montferrat | 2/7/1835 | BON |
| Taxus baccata | GB, Kent, Cuxton | John Stevens Henslow | Charles Ottley Groom | 1852 | BON |
| Trifolium fragiferum | GB, VC15 East Kent, Sandown | | Botanical Society of Edinburgh John Stevens Henslow | 1838 | BON |
| Spiranthes spiralis | GB, VC27 East Norfolk, Cley | | John Stevens Henslow | 8/1834 | BR |
| Mentha aquatica x spicata = M. x piperita var. officinalis | GB, VC19 North Essex, Great Leighs | William Peete | John Stevens Henslow | 4/9/1828 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC59 South Lancashire, Warrington | William Wilson | John Stevens Henslow | 9/1825 to 9/1826 | CGE |
| Mentha aquatica x spicata = M. x piperita | GB, VC65 North-west Yorkshire, Richmond | James Ward | John Stevens Henslow | 9/9/1831 | CGE |
| Mentha aquatica x spicata = M. x piperita var. crispa | GB, VC68 North Northumberland, Langleeford | Charles Cardale Babington | George Johnston John Stevens Henslow | 10/9/1834 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC6 North Somerset, Bath | Charles Cardale Babington | John Stevens Henslow | 9/1833 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC29 Cambridgeshire, Madingley | John Stevens Henslow | John Stevens Henslow | 31/7/1828 | CGE |
| Mentha arvensis x aquatica = M. x verticillata | GB, VC59 South Lancashire, Warrington | William Wilson | John Stevens Henslow | 8/1824 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC58 Cheshire, Newchurch | William Wilson | John Stevens Henslow | 11/1826 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC64 Mid-west Yorkshire, Ripon | Samuel Hailstone | John Stevens Henslow | | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC64 Mid-west Yorkshire, Settle | John Howson | John Stevens Henslow | 8/1833 | CGE |
| Mentha arvensis x aquatica x spicata = M. x smithiana | GB, VC64 Mid-west Yorkshire, Settle | John Howson | John Stevens Henslow | 8/1833 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC39 Staffordshire, Tutbury | Charles Cardale Babington | John Stevens Henslow | 10/9/1832 | CGE |
| Mentha arvensis x spicata = M. x gracilis | GB, VC40 Shropshire | Bell Edward Williams | John Stevens Henslow | | CGE |