| Potamogeton polygonifolius | GB, VC1 West Cornwall, Lizard | William Curnow | Charles Bailey | 6/1876 | MANCH |
| Potamogeton polygonifolius | GB, VC6 North Somerset, Shapwick | John Norton Mills John Patrick Micklethwait Brenan | John Norton Mills | 4/7/1944 | MANCH |
| Potamogeton polygonifolius | GB, VC11 South Hampshire, Titchfield Common | | | | MANCH |
| Potamogeton polygonifolius | GB, VC13 West Sussex, Chichester | William Williamson Newbould | John Hardy | 10/1843 | MANCH |
| Potamogeton polygonifolius | GB, VC14 East Sussex, Crowbrough Common | Charles Bailey | Charles Bailey | 21/7/1898 | MANCH |
| Potamogeton polygonifolius | GB, VC15 East Kent, Ham Ponds | William Wilson Saunders | William Wilson Saunders | 7/1838 | MANCH |
| Potamogeton polygonifolius | GB, VC17 Surrey, Surrey heaths | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1876 | MANCH |
| Potamogeton polygonifolius | GB, VC17 Surrey, Wimbledon Common | Eyre Champion de Crespigny | Charles Bailey Eyre de Crespigny | 7/1886 | MANCH |
| Potamogeton polygonifolius | GB, VC17 Surrey, Wimbledon Common | Eyre Champion de Crespigny | Charles Bailey Eyre de Crespigny | 1891 | MANCH |
| Potamogeton polygonifolius | GB, VC17 Surrey, Wimbledon Common | Eyre Champion de Crespigny | Charles Bailey Eyre Champion de Crespigny | 1891 | MANCH |
| Potamogeton polygonifolius | GB, VC19 North Essex, Tiptree Heath | George Charles Brown | Botanical Society & Exchange Club of The British Isles | 6/5/1920 | MANCH |
| Potamogeton polygonifolius | GB, VC25 East Suffolk, Belton | George Fitt | Charles Cardale Babington Coslett Herbert Waddell | 7/1843 | MANCH |
| Potamogeton polygonifolius | GB, VC25 East Suffolk, Bungay | George Fitt | | 7/1843 | MANCH |
| Potamogeton polygonifolius | GB, VC28 West Norfolk, Dersingham Fen | Alfred Fryer | Alfred Fryer Charles Bailey | 29/9/1894 | MANCH |
| Potamogeton polygonifolius | GB, VC28 West Norfolk, Dersingham Moor | Alfred Fryer | Alfred Fryer Charles Bailey | 29/9/1894 | MANCH |
| Potamogeton polygonifolius | GB, VC31 Huntingdonshire, Bluntisham | William Williamson Newbould | Charles Bailey John Hardy | 23/6/1846 | MANCH |
| Potamogeton polygonifolius | GB, VC40 Shropshire, Bomere Pool GB, VC40 Shropshire, Stiperstones | William Allport Leighton | William Wilson | 1836 | MANCH |
| Potamogeton polygonifolius | GB, VC48 Merionethshire, Arthog | William Charles Barton | Watson Botanical Exchange Club Charles Bailey William Charles Barton | 14/6/1915 | MANCH |
| Potamogeton polygonifolius | GB, VC48 Merionethshire, Cwm Bychan | Charles Bailey | Charles Bailey | 18/7/1879 | MANCH |
| Potamogeton polygonifolius | GB, VC49 Caernarvonshire, Caernarfon | | Alexander Cossart Hasse | 7/1835 | MANCH |
| Potamogeton polygonifolius | GB, VC49 Caernarvonshire, Dinas Dinlle | Charles Bailey | Charles Bailey | 8/4/1901 | MANCH |
| Potamogeton polygonifolius | GB, VC49 Caernarvonshire, Dolbadarn Castle | John Harbord Lewis | Charles Bailey John Harbord Lewis | 30/7/1875 | MANCH |
| Potamogeton polygonifolius | GB, VC49 Caernarvonshire, Dolbadarn Castle | John Harbord Lewis | Charles Bailey | 18/4/1875 | MANCH |
| Potamogeton polygonifolius | GB, VC49 Caernarvonshire, Llanberis | John Harbord Lewis | Charles Bailey John Harbord Lewis | 26/7/1875 | MANCH |
| Potamogeton polygonifolius | GB, VC49 Caernarvonshire, Llanberis,Twll Du | | William Wilson | 24/6/1828 | MANCH |
| Potamogeton polygonifolius | GB, VC49 Caernarvonshire, Llyn Anafon | Charles Bailey | Charles Bailey | 29/9/1884 | MANCH |
| Potamogeton polygonifolius | GB, VC49 Caernarvonshire, Llyn y Cŵn | | William Wilson | 20/6/1825 | MANCH |
| Potamogeton polygonifolius | GB, VC49 Caernarvonshire, Llys y Gwynt | Charles Bailey | Charles Bailey | 7/7/1888 | MANCH |
| Potamogeton polygonifolius | GB, VC49 Caernarvonshire, Nant Ffrancon | | Thomas Barker | 8/1882 | MANCH |
| Potamogeton polygonifolius | GB, VC49 Caernarvonshire, Portmadoc | Charles Bailey | | 19/7/1880 | MANCH |
| Potamogeton polygonifolius | GB, VC50 Denbighshire, Llansanffraid | Henry Smith Fisher | Charles Bailey John Harbord Lewis | 8/1866 | MANCH |
| Potamogeton polygonifolius | GB, VC50 Denbighshire, Wrexham | Charles Waterfall | Botanical Society & Exchange Club of The British Isles Charles Waterfall | 24/9/1917 | MANCH |
| Potamogeton polygonifolius | GB, VC51 Flintshire, Moel y Parc | John Harbord Lewis | Charles Bailey John Harbord Lewis | 4/9/1879 | MANCH |
| Potamogeton polygonifolius | GB, VC55 Leicestershire, Beacon Hill | | Charles Bailey Frederick Thompson Mott Thomas Thorp | 8/1883 | MANCH |
| Potamogeton polygonifolius | GB, VC55 Leicestershire, Beaumont Leys | | Charles Bailey Frederick Thompson Mott Thomas Thorp | 8/1877 | MANCH |
| Potamogeton polygonifolius | GB, VC55 Leicestershire, Bradgate GB, VC55 Leicestershire, River Soar | G Robson | Charles Bailey Frederick Thompson Mott Thomas Thorp | 1877 | MANCH |
| Potamogeton polygonifolius | GB, VC55 Leicestershire, Pelder Tor | Edgar Franklin Cooper | Charles Bailey Frederick Thompson Mott Thomas Thorp | 7/1887 | MANCH |
| Potamogeton polygonifolius | GB, VC58 Cheshire, Macclesfield | Kirby Trimmer | Alfred Fryer Charles Bailey | | MANCH |
| Potamogeton polygonifolius | GB, VC58 Cheshire, Newchurch Bog | | William Wilson | 5/1830 1840 | MANCH |
| Potamogeton polygonifolius | GB, VC58 Cheshire, Newchurch Bog | George Henry Kendrick Thwaites | Wood Charles Bailey | | MANCH |