| Potamogeton pusillus | GB, VC21 Middlesex, Harefield | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1883 | MANCH |
| Potamogeton pusillus | GB, VC21 Middlesex, Harefield | George Taylor | | 7/7/1946 | SLBI |
| Potamogeton pusillus | GB, VC25 East Suffolk, Bungay | | | 8/1880 | BON |
| Potamogeton pusillus | GB, VC27 East Norfolk, Barton Broad | Charles Edward Moss | Alfred Fryer Charles Bailey | 26/8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Barton Broad | Charles Edward Moss | Alfred Fryer Charles Bailey | 23/8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Barton Broad | Charles Edward Moss | Alfred Fryer Charles Bailey | 26/8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Barton Broad | Charles Edward Moss | Alfred Fryer Charles Bailey | 8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Barton Broad | Charles Edward Moss | Alfred Fryer Charles Bailey | 23/9/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Barton Broad | Charles Edward Moss | Alfred Fryer Charles Bailey | 22/8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Barton Broad | Charles Edward Moss | Alfred Fryer Charles Bailey | 8/1909 | BIRM |
| Potamogeton pusillus | GB, VC27 East Norfolk, Brograve Level | Charles Edward Moss | Botanical Exchange Club of The British Isles Cambridge University Charles Bailey | 8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Brograve Level | Charles Edward Moss | Botanical Exchange Club of The British Isles Cambridge University Charles Bailey | 28/8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Brograve Level | Charles Edward Moss | Botanical Exchange Club of The British Isles Cambridge University Augustin Ley | 8/1909 | BIRM |
| Potamogeton pusillus | GB, VC27 East Norfolk, Horsey | James Groves | Henry & James Groves | 10/7/1912 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Ingham | James Groves | Allan Octavian Hume Henry & James Groves | 11/8/1897 | SLBI |
| Potamogeton pusillus | GB, VC27 East Norfolk, Norfolk Broads | Charles Edward Moss | Alfred Fryer Charles Bailey | 23/8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Norfolk Broads | Charles Edward Moss | Alfred Fryer Charles Bailey | 23/8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Norfolk Broads | Charles Edward Moss | Alfred Fryer Charles Bailey | 23/8/1909 | MANCH |
| Potamogeton pusillus | GB, VC27 East Norfolk, Yarmouth | | Langley Kitching | 11/7/1899 | BIRM |
| Potamogeton pusillus | GB, VC28 West Norfolk, Brancaster | Kirby Trimmer | Mantua And Montferrat Charles Ottley Groom | 8/1836 | BON |
| Potamogeton pusillus | GB, VC28 West Norfolk, Fakenham | W Horton-Smith | | | MANCH |
| Potamogeton pusillus | GB, VC28 West Norfolk, Wolferton | George Claridge Druce | Botanical Exchange Club of The British Isles Charles Bailey | 7/1884 | MANCH |
| Potamogeton pusillus | GB, VC30 Bedfordshire, Southill | Joseph Edward Little | Watson Botanical Exchange Club Joseph Edward Little | 27/6/1913 to 12/7/1913 | MANCH |
| Potamogeton pusillus | GB, VC33 East Gloucestershire, Stroud | Alfred Fryer | | 6/1900 | MANCH |
| Potamogeton pusillus | GB, VC38 Warwickshire, Stratford on Avon | George Taylor | | 21/8/1947 | SLBI |
| Potamogeton pusillus | GB, VC40 Shropshire, Shrewsbury Canal | | Mantua And Montferrat | | BON |
| Potamogeton pusillus | GB, VC49 Caernarvonshire, Llandudno | | Charles Bailey | 8/1868 | BON |
| Potamogeton pusillus | GB, VC49 Caernarvonshire, Llandudno | William Hunt Painter | | 7/1868 | ABS |
| Potamogeton pusillus | GB, VC49 Caernarvonshire, Traeth Mawr | Augustin Ley | Augustin Ley | 12/8/1886 | BIRM |
| Potamogeton pusillus | GB, VC50 Denbighshire, Rhydd Marsh, Prestatyn | Bowman | Bowman | 18/7/1832 | MANCH |
| Potamogeton pusillus | GB, VC50 Denbighshire, Wrexham | Bowman | Bowman | | MANCH |
| Potamogeton pusillus | GB, VC52 Anglesey | John Edwards Griffith | Croydon Natural History and Scientific Society Henry Franklin Parsons Arthur Bennett | 8/1886 | SLBI |
| Potamogeton pusillus | GB, VC57 Derbyshire, Between Cromford and Whatstandwell | Charles Bailey | Charles Bailey | 17/7/1884 | MANCH |
| Potamogeton pusillus | GB, VC58 Cheshire, Frodsham | Charles Bailey | Charles Bailey | 30/8/1868 | MANCH |
| Potamogeton pusillus | GB, VC58 Cheshire, Pickerings o' the Boat | W Horton-Smith | W Horton-Smith | 22/8/1917 | MANCH |
| Potamogeton pusillus | GB, VC58 Cheshire, Rostherne Mere | Charles Bailey | Charles Bailey | 13/8/1892 | MANCH |
| Potamogeton pusillus | GB, VC59 South Lancashire, Haughton Green | A Croker | University of Manchester | 18/8/1948 | MANCH |
| Potamogeton pusillus | GB, VC59 South Lancashire, Liverpool, North Shore Mills | John Harbord Lewis | Charles Bailey | 24/6/1872 | MANCH |
| Potamogeton pusillus | GB, VC59 South Lancashire, Manchester | Thomas Rogers | | 7/1884 | MANCH |
| Potamogeton pusillus | GB, VC59 South Lancashire, Manchester | | John Bland Wood | 6/1840 | MANCH |