| Potamogeton polygonifolius | GB, VC66 County Durham, Upper Teesdale, Lower Slopestone | H Marchant | | 20/7/1968 | MANCH |
| Potamogeton polygonifolius | GB, VC66 County Durham, Widdybank Fell, Teesdale | Margaret Elizabeth Bradshaw | Cambridge University | 3/9/1969 | E |
| Potamogeton polygonifolius | GB, VC66 County Durham, Widdybank Fell, Teesdale | Job Edward Lousley | Job Edward Lousley | 7/1927 | SLBI |
| Potamogeton polygonifolius | GB, VC66 County Durham, Widdybank Fell, Teesdale | Job Edward Lousley | Job Edward Lousley | 7/1927 | SLBI |
| Potamogeton polygonifolius | GB, VC67 South Northumberland, Bellingham | George Taylor | | 7/6/1941 | E |
| Potamogeton polygonifolius | GB, VC68 North Northumberland, Belford | James A Terras | James A Terras | | E |
| Potamogeton polygonifolius | GB, VC69 Westmorland, Hawkshead | Frederick Ernest Weiss | | 8/1900 | MANCH |
| Potamogeton polygonifolius | GB, VC69 Westmorland, Langdale Pikes | Benjamin Carrington | Dr Thomas Fletcher | 7/1858 | MANCH |
| Potamogeton polygonifolius | GB, VC69 Westmorland, Mardale | Augustin Ley | | 6/9/1880 | BIRM |
| Potamogeton polygonifolius | GB, VC69 Westmorland, Nor Moss Tarn, Windermere | Denis John Carr | University of Manchester | 7/1948 | ABS |
| Potamogeton polygonifolius | GB, VC69 Westmorland, Patterdale | Philip Brookes Mason | Philip Brookes Mason | 6/1874 | BON |
| Potamogeton polygonifolius | GB, VC69 Westmorland, Shap | Charles Bailey | Charles Bailey | 15/7/1892 | MANCH |
| Potamogeton polygonifolius | GB, VC69 Westmorland, Steps Hall, Shap | Charles Bailey | | 15/7/1892 | BIRM |
| Potamogeton polygonifolius | GB, VC70 Cumberland, Arlecdon | | Charles Bailey John Harbord Lewis John William Burton | 24/6/1874 | MANCH |
| Potamogeton polygonifolius | GB, VC70 Cumberland, Cumberland | Fenton John Anthony Hort | Charles Bailey | 9/1849 | MANCH |
| Potamogeton polygonifolius | GB, VC70 Cumberland, Scale Force | Clara Winsome Muirhead | | 1969 | E |
| Potamogeton polygonifolius | GB, VC70 Cumberland, Stony Tarn | Augustin Ley | Augustin Ley | 1/9/1871 | BIRM |
| Potamogeton polygonifolius | GB, VC70 Cumberland, Tarn Moss | Effie Moira Rosser | | 19/7/1954 | MANCH |
| Potamogeton polygonifolius | GB, VC72 Dumfriesshire, Moffat | J R Reid | J R Reid | 8/1877 | E |
| Potamogeton polygonifolius | GB, VC73 Kirkcudbrightshire, Airie Burn | Olga Margaret Stewart | | 20/7/1974 | E |
| Potamogeton polygonifolius | GB, VC73 Kirkcudbrightshire, Duimhumphrey | Nicholas F Stewart Olga Margaret Stewart | | 3/7/1988 | E |
| Potamogeton polygonifolius | GB, VC73 Kirkcudbrightshire, Loch Kindar | George Taylor | | 2/8/1953 | E |
| Potamogeton polygonifolius | GB, VC73 Kirkcudbrightshire, Stroanfreggan Bridge | George Taylor | | 4/9/1947 | E |
| Potamogeton polygonifolius | GB, VC73 Kirkcudbrightshire, Stroanfreggan Bridge | George Taylor | | 4/9/1947 | SLBI |
| Potamogeton polygonifolius | GB, VC74 Wigtownshire, Luce Bay | Charles Bailey | Charles Bailey | 28/9/1883 | MANCH |
| Potamogeton polygonifolius | GB, VC75 Ayrshire, Dalmellington | George Taylor | British Museum (Natural History) George Taylor | 4/8/1949 | E |
| Potamogeton polygonifolius | GB, VC75 Ayrshire, Dalmellington | George Taylor | The British Museum | 4/8/1949 | MANCH |
| Potamogeton polygonifolius | GB, VC75 Ayrshire, Dalmellington | George Taylor | | 4/8/1949 | SLBI |
| Potamogeton polygonifolius | GB, VC76 Renfrewshire, Kilmacolm | Robert MacKechnie | | 6/6/1925 | E |
| Potamogeton polygonifolius | GB, VC80 Roxburghshire, Mossburnford | | Berwick Herbarium | | E |
| Potamogeton polygonifolius | GB, VC81 Berwickshire, Gordon | Johnston | Berwick Herbarium Johnston | | E |
| Potamogeton polygonifolius | GB, VC81 Berwickshire, Gordon Moss | Philip Whiteside Maclagan | Bewick Philip Whiteside Maclagan | 15/7/1869 | E |
| Potamogeton polygonifolius | GB, VC82 East Lothian, Sheeppath Glen | George Taylor | | 26/7/1982 | E |
| Potamogeton polygonifolius | GB, VC83 Midlothian, Balerno | | A MacRae | 6/6/1903 | E |
| Potamogeton polygonifolius | GB, VC83 Midlothian, Borthwick | | Museum Herbarium, Bridge of Allan | 1832 | E |
| Potamogeton polygonifolius | GB, VC83 Midlothian, Cobbinshaw Reservoir | George Taylor | | 9/6/1945 | E |
| Potamogeton polygonifolius | GB, VC83 Midlothian, Pentland Hills | | Isaac Bayley Balfour | 2/9/1871 | E |
| Potamogeton polygonifolius | GB, VC83 Midlothian, Ravelrig Bog | | John Hutton Balfour | | BON |
| Potamogeton polygonifolius | GB, VC83 Midlothian, Ravelrig Bog | Fletcher | Fletcher | | MANCH |
| Potamogeton polygonifolius | GB, VC83 Midlothian, Threipmuir Reservoir | W Horton-Smith | | 13/7/1878 | MANCH |