| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC96 East Inverness-shire, Drummossie Muir | Mary McCallum Webster | | 26/10/1975 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC96 East Inverness-shire, Fort Augustus | Mary McCallum Webster | | 8/8/1975 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC96 East Inverness-shire, Loch Bunacharan | Mary McCallum Webster | | 26/10/1975 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC96 East Inverness-shire, Loch Uanagan | R. Miner Ursula Katherine Duncan | | 23/7/1973 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC98 Argyllshire, Keilmelfort | Clara Winsome Muirhead S Sutton | | 18/7/1965 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC101 Kintyre, Aucha Lochy | Christopher David Preston Nicholas F Stewart | Cambridge University | 19/6/1988 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC101 Kintyre, Aucha Lochy | Christopher David Preston Nicholas F Stewart | Cambridge University | 19/6/1988 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC101 Kintyre, Loch Barnluasgan | Christopher David Preston M G B Hughes Nicholas F Stewart | Cambridge University | 20/6/1988 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC101 Kintyre, Loch Cill an Aonghais | John Scott Lennox Gilmour | The British Museum | 31/7/1944 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC101 Kintyre, Loch Coille-Bharr | Christopher David Preston M G B Hughes Nicholas F Stewart | Cambridge University | 20/6/1988 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | GB, VC106 East Ross & Cromarty, Loch Kinellan | Ursula Katherine Duncan | | 6/8/1967 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | IE, VCH16,VCH26, Cong | Charles Bailey | Charles Bailey | 2/10/1885 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | IE, Kerry, Killorglin | Reginald Wiliam Scully | Reginald Wiliam Scully | 4/8/1890 | ABS |
| Potamogeton lucens x gramineus = P. x angustifolius | IE, Kerry, Killorglin | Reginald Wiliam Scully | Botanical Exchange Club of The British Isles Reginald Wiliam Scully | 4/8/1890 | SLBI |
| Potamogeton lucens x gramineus = P. x angustifolius | IE, VCH16 West Galway, Maam | Thomas Barker | | 8/1868 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | IE, VCH23 Westmeath, County Westmeath | Edward Shearburn Marshall | Alexander Somerville Edward Shearburn Marshall | 18/7/1895 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | IE, VCH27 West Mayo, Carrowbeg River | Clara Winsome Muirhead | | 27/5/1965 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | IE, VCH28 Co. Sligo, Lough Gill | Robert MacKechnie | Robert MacKechnie | 20/7/1949 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | IE, VCH28 Co. Sligo, Lough Gill | Robert MacKechnie | Robert MacKechnie | 20/7/1949 | E |
| Potamogeton lucens x gramineus = P. x angustifolius | IE, VCH30 Co. Cavan | Samuel Alexander Stewart | Botanical Exchange Club of The British Isles Arthur Bennett | 6/7/1881 | ABS |
| Potamogeton lucens x gramineus = P. x angustifolius | IE, VCH38 Co. Down, Lagan | Samuel Alexander Stewart | Alfred Fryer Charles Bailey | 12/8/1894 | MANCH |
| Potamogeton lucens x gramineus = P. x angustifolius | IE, VCH40 Co. Londonderry, coleraine | Samuel Alexander Stewart | Botanical Exchange Club of The British Isles Charles Bailey | 29/7/1883 | MANCH |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC29 Cambridgeshire, Block Fen, Chatteris | Alfred Fryer | Augustin Ley | 25/7/1887 | BIRM |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC29 Cambridgeshire, Chatteris | Alfred Fryer | Charles Bailey | 4/7/1884 | BIRM |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC29 Cambridgeshire, Chatteris | Alfred Fryer | William Hadden Beeby | 31/5/1887 | SLBI |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC29 Cambridgeshire, Doddington | Alfred Fryer | Alfred Fryer | 19/7/1887 | E |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC29 Cambridgeshire, Mepal, Hammonds Eau | Edward Charles Wallace | | | E |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC29 Cambridgeshire, Welches Dam | Alfred Fryer | Arthur Bennett | 8/1883 | E |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC29 Cambridgeshire, Wicken | Alfred Fryer | | 1/7/1885 | SLBI |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC54 North Lincolnshire, Dirtness Bridge | George Taylor | | 5/6/1944 | E |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC55 Leicestershire, Moira | Edgar Franklin Cooper | Augustin Ley | 18/8/1891 | BIRM |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC80 Roxburghshire, Cauldshiels Loch | Edward Shearburn Marshall | Harold Stuart Thompson | 12/7/1892 | BIRM |
| Potamogeton lucens x gramineus = P. x zizii | GB, VC85 Fifeshire, Lochgelly | John Thomas Irvine Boswell-Syme | | 8/1868 | BON |
+ | Potamogeton lucens x gramineus = P. x zizii | GB, VC87 West Perthshire, Lake of Menteith | Robert Kidston | | 26/8/1884 | PTH |
+ | Potamogeton lucens x gramineus = P. x zizii | GB, VC87 West Perthshire, Lake of Menteith | Nicholas F Stewart | | 8/7/1988 | PTH |
+ | Potamogeton lucens x gramineus = P. x zizii | GB, VC88 Mid Perthshire, Dalreoch Bridge | Kindrogan Water Plants Course | | 25/9/1986 | PTH |
+ | Potamogeton lucens x gramineus = P. x zizii | GB, VC88 Mid Perthshire, Loch of Balloch | Abram Sturrock | | 21/8/1884 | PTH |
+ | Potamogeton lucens x gramineus = P. x zizii | GB, VC89 East Perthshire, Loch of Butterstone | | | 4/8/1883 | PTH |
+ | Potamogeton lucens x gramineus = P. x zizii | GB, VC89 East Perthshire, Loch of Butterstone | Abram Sturrock | | 4/8/1882 | PTH |
+ | Potamogeton lucens x gramineus = P. x zizii | GB, VC89 East Perthshire, Loch of Butterstone | Abram Sturrock | | 4/8/1882 | PTH |