| Glyceria declinata | GB, VC35, VC36, Hatterrall Hill | Augustin Ley | Augustin Ley | 7/8/1888 | BIRM |
| Glyceria declinata | GB, VC66,VC69, Langdon Beck | Denis John Carr | University of Manchester | 7/1947 | ABS |
| Glyceria declinata | GB, VC1 West Cornwall, Saint Mary's,Higher Bog | William Curnow | George Stephen West | 31/5/1876 | BIRM |
| Glyceria fluitans x notata = G. x pedicellata | GB, VC3 South Devon, Plymouth | John (Joannis) Fraser | John (Joannis) Fraser William Hunt Painter | 5/7/1879 | ABS |
| Glyceria fluitans | GB, VC3 South Devon, Teignmouth | Charles James Rufus Jordan | Robert Coane Roberts Jordan | 1849 | BIRM |
| Glyceria fluitans | GB, VC4 North Devon, Braunton | Fiona M Audus | | 20/6/1967 | ABS |
| Glyceria fluitans | GB, VC4 North Devon, Braunton | Fiona M Audus | | 20/6/1967 | ABS |
| Glyceria fluitans | GB, VC4 North Devon, Braunton | Fiona M Audus | | 28/6/1967 | ABS |
| Glyceria fluitans | GB, VC5 South Somerset, Porlock | | Leslie John Audus | 26/9/1939 | ABS |
| Glyceria fluitans x notata = G. x pedicellata | GB, VC6 North Somerset, Abbots Leigh | James Walter White | Charles Bailey | 14/6/1891 | MANCH |
| Glyceria fluitans x notata = G. x pedicellata | GB, VC6 North Somerset, Abbots Leigh | James Walter White | Charles Bailey | 14/6/1891 | MANCH |
| Glyceria fluitans x notata = G. x pedicellata | GB, VC6 North Somerset, Abbots Leigh | James Walter White | Augustin Ley | 14/6/1891 | BIRM |
| Glyceria fluitans x notata = G. x pedicellata | GB, VC6 North Somerset, Abbots Leigh | James Walter White | Botanical Exchange Club of The British Isles William Hunt Painter | 7/6/1889 | ABS |
| Glyceria fluitans x notata = G. x pedicellata | GB, VC6 North Somerset, Abbots Leigh | James Walter White | Botanical Exchange Club of The British Isles | 7/6/1889 | MANCH |
| Glyceria fluitans x notata = G. x pedicellata | GB, VC6 North Somerset, Abbots Leigh | James Walter White | | 4/6/1890 | SHYB |
| Glyceria fluitans x notata = G. x pedicellata | GB, VC6 North Somerset, Abbots Leigh | James Walter White | | 14/6/1891 | ABS |
| Glyceria maxima | GB, VC6 North Somerset, Edington | Harold Stuart Thompson | Harold Stuart Thompson | 5/8/1918 | BIRM |
| Glyceria maxima | GB, VC6 North Somerset, Sharpham Moor | Harold Stuart Thompson | Harold Stuart Thompson | 8/1923 | BIRM |
| Glyceria plicata | GB, VC6 North Somerset, Weston in Gordano | Harold Stuart Thompson | Harold Stuart Thompson | 4/8/1916 | BIRM |
| Glyceria notata | GB, VC9 Dorset, Arne | Philip Scarborough King | Philip Scarborough King | 4/9/1883 | ABS |
| Glyceria fluitans | GB, VC10 Isle of Wight, Sandown | Douglas Montague Heath | Douglas Montague Heath | 29/7/1915 | BIRM |
| Glyceria fluitans x notata = G. x pedicellata | GB, VC10 Isle of Wight, Sandown | Douglas Montague Heath | Douglas Montague Heath | 29/7/1915 | BIRM |
| Glyceria plicata | GB, VC11 South Hampshire, Havant | Frederick Townsend | Augustin Ley Frederick Townsend | | BIRM |
| Glyceria fluitans x notata = G. x pedicellata | GB, VC11 South Hampshire, Titchfield | Frederick Townsend | London Botanical Exchange Club Robert Large Baker | 6/1873 | BIRM |
| Glyceria fluitans x notata = G. x pedicellata | GB, VC11 South Hampshire, Titchfield | William Lowndes Notcutt | Charles Bailey William Lowndes Notcutt | 1844 | MANCH |
| Glyceria fluitans x notata = G. x pedicellata | GB, VC11 South Hampshire, Titchfield | Frederick Townsend | Augustin Ley Frederick Townsend | 6/1873 | BIRM |
| Glyceria fluitans | GB, VC14 East Sussex, Lewes | William Charles Unwin | Mantua And Montferrat | 6/1850 | BON |
| Glyceria plicata | GB, VC14 East Sussex, Lewes | | Charles Ottley Groom | | BON |
| Glyceria fluitans | GB, VC15 East Kent, Deal | William Garneys | William Garneys | 1877 | BON |
| Glyceria fluitans | GB, VC17 Surrey | Hewett Cottrell Watson | | | BON |
| Glyceria maxima | GB, VC17 Surrey | Hewett Cottrell Watson | | 1865 | BON |
| Glyceria declinata | GB, VC17 Surrey, Gomshall Marsh | William Hadden Beeby | Augustin Ley William Hadden Beeby Botanical Exchange Club of The British Isles | 22/6/1885 | BIRM |
| Glyceria declinata | GB, VC17 Surrey, Pease Marsh | Edward Shearburn Marshall | Botanical Exchange Club of The British Isles Augustin Ley | 2/9/1893 | BIRM |
| Glyceria fluitans | GB, VC17 Surrey, Richmond Park | Philip Frank Wareing | | | ABS |
| Glyceria maxima | GB, VC17 Surrey, Walton on Thames | | George Stephen West | 24/7/1919 29/7/1919 | BIRM |
| Glyceria fluitans | GB, VC19 North Essex, Walton on the Naze | Frederick Yorke Brocas | Mantua And Montferrat | 8/1882 | BON |
| Glyceria fluitans | GB, VC19 North Essex, Walton-on-the-Naze | Frederick Yorke Brocas | Mantua And Montferrat | 1882 | BON |
| Glyceria fluitans x notata = G. x pedicellata | GB, VC20 Hertfordshire, Wheathamstead | | Charles Bailey John Wilson Rimington Spencer Henry Bickham | 1856 | MANCH |
| Glyceria fluitans | GB, VC21 Middlesex, Finsbury Park | | | 3/7/1876 | DBC |
| Glyceria declinata | GB, VC21 Middlesex, Hampstead | Thomas Moore | Augustin Ley | 6/1846 | BIRM |