| Zannichellia palustris | GB, VC6 North Somerset, Clevedon | Augustin Ley | Augustin Ley | 22/9/1910 | BIRM |
| Zannichellia palustris | GB, VC6 North Somerset, Pill, Saint Georges | Harold Stuart Thompson | Harold Stuart Thompson | 22/7/1916 | BIRM |
| Zannichellia palustris | GB, VC6 North Somerset, Weston in Gordano | Harold Stuart Thompson | Harold Stuart Thompson | 4/8/1916 | BIRM |
| Zannichellia palustris | GB, VC10 Isle of Wight, Alverstone | Douglas Montague Heath | Douglas Montague Heath | 26/7/1916 | BIRM |
| Zannichellia palustris | GB, VC15 East Kent, Sandwich | Henry Tuke Mennell | Harold Stuart Thompson Henry Tuke Mennell | | BIRM |
| Zannichellia palustris | GB, VC15 East Kent, Westenhanger | Edward Shearburn Marshall | Augustin Ley Edward Shearburn Marshall | 15/7/1893 | BIRM |
| Zannichellia palustris | GB, VC17 Surrey, Morden | Charles Edward Britton | Botanical Exchange Club of The British Isles | 21/8/1910 | BIRM |
| Zannichellia palustris var. brachystemon | GB, VC17 Surrey, Mortlake | George Nicholson | William Hillhouse | 6/1878 | BIRM |
| Zannichellia palustris | GB, VC17 Surrey, Worplesdon | | Douglas Montague Heath | 19/6/1929 | BIRM |
| Zannichellia palustris var. macrostemmon | GB, VC23 Oxfordshire, Oxford | George Claridge Druce | Botanical Exchange Club of The British Isles Augustin Ley | 6/1901 | BIRM |
| Zannichellia palustris var. brachystemon | GB, VC23 Oxfordshire, Witney | George Claridge Druce | Botanical Exchange Club of The British Isles Augustin Ley | 7/1884 | BIRM |
| Zannichellia palustris | GB, VC29 Cambridgeshire, Cambridge | Alfred James Wilmott | Watson Botanical Exchange Club Alfred James Wilmott Augustin Ley | 31/10/1910 | BIRM |
| Zannichellia palustris | GB, VC29 Cambridgeshire, Fulbourn | William Hillhouse | William Hillhouse | 19/7/1878 | BIRM |
| Zannichellia palustris | GB, VC30 Bedfordshire, Milton | William Hillhouse | William Hillhouse | 10/8/1876 | BIRM |
| Zannichellia palustris | GB, VC36 Herefordshire, Aymestrey | Augustin Ley | Augustin Ley | 11/8/1881 | BIRM |
| Zannichellia palustris | GB, VC36 Herefordshire, Gorsley | William Henry Purchas | Harold Stuart Thompson Thomas Clark | 24/7/1850 | BIRM |
| Zannichellia palustris | GB, VC36 Herefordshire, Pentaloe Brook | | Augustin Ley | 22/7/1859 | BIRM |
| Zannichellia palustris | GB, VC36 Herefordshire, Rowlstone | Augustin Ley | Augustin Ley | 27/9/1892 | BIRM |
| Zannichellia palustris | GB, VC38 Warwickshire, Armscote | Richard Neville Lester | | | BIRM |
| Zannichellia palustris | GB, VC38 Warwickshire, Cloudesley Bush | Dorothy Adlington Cadbury | Dorothy Adlington Cadbury | 29/6/1955 | BIRM |
| Zannichellia palustris var. macrostemmon | GB, VC38 Warwickshire, Woodloes | Henry Bromwich | Botanical Exchange Club of The British Isles Augustin Ley | 9/1886 | BIRM |
| Zannichellia palustris | GB, VC57 Derbyshire, Buxton | Augustin Ley | Augustin Ley | 9/7/1888 | BIRM |
| Zannichellia palustris var. macrostemmon | GB, VC58 Cheshire, Stockport | James Cosmo Melvill | Botanical Exchange Club of The British Isles Augustin Ley James Cosmo Melvill | 20/10/1883 | BIRM |
| Zannichellia palustris var. macrostemmon | GB, VC59 South Lancashire, Canal at Reddish | Charles Bailey | Botanical Exchange Club of The British Isles Augustin Ley Charles Bailey | 24/6/1884 | BIRM |
| Zannichellia palustris var. brachystemon | GB, VC59 South Lancashire, Reddish | Charles Bailey | | 3/10/1883 | BIRM |
| Zannichellia palustris var. brachystemon | GB, VC59 South Lancashire, Reddish | James Cosmo Melvill | Botanical Exchange Club of The British Isles Augustin Ley | 20/10/1883 | BIRM |
| Zannichellia palustris | GB, VC62 North-east Yorkshire, Middlesbrough | William A Mudd | George Stephen West | 7/1853 | BIRM |
| Zannichellia palustris | GB, VC62 North-east Yorkshire, Middlesbrough | William A Mudd | George Stephen West | 7/1856 | BIRM |
| Zannichellia palustris | GB, VC62 North-east Yorkshire, Thirsk | John Gilbert Baker | George Stephen West | 9/1850 | BIRM |
| Zannichellia palustris var. brachystemon | GB, VC63 South-west Yorkshire, Bingley | William West | George Stephen West William West | 7/1896 | BIRM |
| Zannichellia palustris | GB, VC63 South-west Yorkshire, Bingley | William West | George Stephen West William West | 7/1906 | BIRM |
| Zannichellia palustris var. brachystemon | GB, VC63 South-west Yorkshire, Doncaster | William West | George Stephen West William West | 4/8/1890 | BIRM |
| Zannichellia palustris | GB, VC63 South-west Yorkshire, Doncaster | William West | William West | 6/1909 | BIRM |
| Zannichellia palustris var. brachystemon | GB, VC63 South-west Yorkshire, Doncaster | William West | George Stephen West | 7/1909 | BIRM |
| Zannichellia palustris | GB, VC63 South-west Yorkshire, Marsden | Ada Hinson | William Hillhouse | 10/8/1876 | BIRM |
| Zannichellia palustris | GB, VC64 Mid-west Yorkshire, Hambleton | Henry Franklin Parsons | George Stephen West | 8/1878 | BIRM |
| Zannichellia palustris var. macrostemmon | GB, VC64 Mid-west Yorkshire, Towton | Frederick Arnold Lees | Botanical Exchange Club of The British Isles George Stephen West | 8/1881 | BIRM |
| Zannichellia palustris var. macrostemmon | GB, VC64 Mid-west Yorkshire, Towton | Frederick Arnold Lees | Botanical Exchange Club of The British Isles Augustin Ley | 8/1881 | BIRM |
| Zannichellia palustris | GB, VC61,VC62,VC64, York | George Webster | George Stephen West | 8/1877 | BIRM |
| Zannichellia palustris | GB, VC111 Orkney, Loch of Kirbister | John Thomas Irvine Boswell-Syme | Botanical Exchange Club of The British Isles Augustin Ley | 1880 | BIRM |