| Potamogeton polygonifolius | GB, VC4 North Devon, Braunton Burrows | William Hunt Painter | | 25/5/1892 | ABS |
| Potamogeton polygonifolius | GB, VC37 Worcestershire, Hartlebury | William Mathews | | 23/5/1884 | ABS |
| Potamogeton polygonifolius | GB, VC41 Glamorganshire, Braich y Cymmer | Gwilym John Davies | | 16/7/1959 | ABS |
| Potamogeton polygonifolius | GB, VC46 Cardiganshire, Tregaron | | | 1937 | ABS |
| Potamogeton polygonifolius | GB, VC48 Merionethshire, Arenig | William Mathews | | 8/8/1884 | ABS |
| Potamogeton polygonifolius | GB, VC63,VC64, Bingley | William West | | 7/1878 | ABS |
| Potamogeton polygonifolius | GB, VC65 North-west Yorkshire, Cronkley Fell | William Hunt Painter | | 18/7/1893 | ABS |
| Potamogeton polygonifolius | GB, VC69 Westmorland, Nor Moss Tarn, Windermere | Denis John Carr | University of Manchester | 7/1948 | ABS |
| Potamogeton polygonifolius | GB, VC96 East Inverness-shire, Loch Garten | Philip Frank Wareing | Philip Frank Wareing | 1952 | ABS |
| Potamogeton polygonifolius | GB, VC105 West Ross & Cromarty, Diabaig | M Hildred Bigwood | | 11/7/1968 | ABS |
| Potamogeton polygonifolius | GB, VC111 Orkney, Loch of Boardhouse | Henry Halcro Johnston William Irvine Fortescue | Botanical Exchange Club of The British Isles | 7/1885 to 9/1885 | ABS |
| Potamogeton polygonifolius | IE, Kerry, The Long Range | Reginald Wiliam Scully | Botanical Exchange Club of The British Isles Reginald Wiliam Scully | 8/1888 | ABS |
| Potamogeton polygonifolius | GB, VC6 North Somerset, Charterhouse | Harold Stuart Thompson | Harold Stuart Thompson | 21/7/1915 | BIRM |
| Potamogeton polygonifolius | GB, VC6 North Somerset, Lower Farm, Charterhouse | Harold Stuart Thompson | Harold Stuart Thompson | 21/7/1915 | BIRM |
| Potamogeton polygonifolius | GB, VC6 North Somerset, Walton Moor | Harold Stuart Thompson | Harold Stuart Thompson | 30/8/1925 | BIRM |
| Potamogeton polygonifolius | GB, VC6 North Somerset, Weston in Gordano | Harold Stuart Thompson | Harold Stuart Thompson | 4/8/1916 | BIRM |
| Potamogeton polygonifolius | GB, Somerset, Blackdown | Harold Stuart Thompson | Harold Stuart Thompson | 9/6/1924 | BIRM |
| Potamogeton polygonifolius | GB, Somerset, Blackdown | Harold Stuart Thompson | Harold Stuart Thompson | 25/9/1915 | BIRM |
| Potamogeton polygonifolius | GB, VC14 East Sussex, Crowbrough Common | Charles Bailey | Charles Bailey | 21/7/1898 | BIRM |
| Potamogeton polygonifolius | GB, VC17 Surrey, Thursley | Iolo Aneurin Williams | Watson Botanical Exchange Club Harold Stuart Thompson | 11/1924 | BIRM |
| Potamogeton polygonifolius | GB, VC17 Surrey, Thursley | Iolo Aneurin Williams | Watson Botanical Exchange Club Harold Stuart Thompson | 27/6/1925 | BIRM |
| Potamogeton polygonifolius | GB, VC22 Berkshire, Ascot | Douglas Montague Heath | Douglas Montague Heath | 9/1929 | BIRM |
| Potamogeton polygonifolius | GB, VC28 West Norfolk, East Walton | Douglas Montague Heath | Douglas Montague Heath | 15/5/1916 | BIRM |
| Potamogeton polygonifolius | GB, VC28 West Norfolk, Foulden | Frederick Robinson | Douglas Montague Heath | 11/6/1914 | BIRM |
| Potamogeton polygonifolius | GB, VC28 West Norfolk, Foulden | Frederick Robinson | Douglas Montague Heath | 17/7/1914 | BIRM |
| Potamogeton polygonifolius | GB, VC35 Monmouthshire, Trelleck | | Augustin Ley | 19/8/1876 | BIRM |
| Potamogeton polygonifolius | GB, VC36 Herefordshire, Dorstone, Bell Alders | Augustin Ley | Augustin Ley | 5/6/1889 | BIRM |
| Potamogeton polygonifolius | GB, VC36 Herefordshire, Grwyne Valley | Augustin Ley | Augustin Ley | 25/8/1880 | BIRM |
| Potamogeton polygonifolius | GB, VC36 Herefordshire, Hatterall | Augustin Ley | Augustin Ley | 8/6/1881 | BIRM |
| Potamogeton polygonifolius | GB, VC36 Herefordshire, Howle Hill | Augustin Ley | Augustin Ley | 4/8/1880 | BIRM |
| Potamogeton polygonifolius | GB, VC36 Herefordshire, Moccas Park | Augustin Ley | Augustin Ley | 13/7/1887 | BIRM |
| Potamogeton polygonifolius | GB, VC36 Herefordshire, Kingswood GB, VC36 Herefordshire, Moseley | Augustin Ley | Augustin Ley | 30/4/1881 | BIRM |
| Potamogeton polygonifolius | GB, VC36 Herefordshire, Werndu | Augustin Ley | Augustin Ley | 27/6/1884 | BIRM |
| Potamogeton polygonifolius | GB, VC38 Warwickshire, Forshaw Heath | James B Phipps | | 15/6/1954 | BIRM |
| Potamogeton polygonifolius | GB, VC38 Warwickshire, Warwick | Thomas Kirk | | | BIRM |
| Potamogeton polygonifolius | GB, VC40 Shropshire, Church Stretton | | Augustin Ley | 5/7/1887 | BIRM |
| Potamogeton polygonifolius | GB, VC43 Radnorshire, Rhos-gôch | | Augustin Ley | 18/8/1885 | BIRM |
| Potamogeton polygonifolius | GB, VC43 Radnorshire, Rhos-gôch | Augustin Ley | Augustin Ley | 1/7/1881 | BIRM |
| Potamogeton polygonifolius | GB, VC44 Carmarthenshire, Carreg Cennen | | Augustin Ley | 26/9/1883 | BIRM |
| Potamogeton polygonifolius | GB, VC41,VC44, Pantyffynon | Augustin Ley | Augustin Ley | 26/9/1883 | BIRM |