| Tjønnaks (Potamogeton sp.) | | 2017-06-08 | 2017-06-07 |  | Apeltunvatnet (Vestland, Norway) |
| Tjønnaks (Potamogeton sp.) | | 2017-06-07 | 2017-06-07 | | Apeltunvatnet (Vestland, Norway) |
| Tjønnaks (Potamogeton sp.) | | 2007-06-04 | 2007-05-25 | | Helsetvatnet (Møre og Romsdal, Norway) |
| Tjønnaks (Potamogeton sp.) | | 2004-10-01 | 2004-09-14 | | Pytt ved Strand gård (Trøndelag, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1990-06-26 | 1990-06-26 | | Tretjønnet (Agder, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-09-29 | 1989-09-29 | | Fetvatnet (Møre og Romsdal, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1996-09-25 | 1996-09-25 | | Ulfsbakktjønn (Vestfold, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1995-09-25 | 1995-09-25 | | Ulfsbakktjønn (Vestfold, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1993-06-10 | 1993-06-10 | | Bogstadvannet (Oslo, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1994-11-23 | 1994-11-23 | | Håskjoldtjern (Møre og Romsdal, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1991-09-25 | 1991-09-25 | | Lille luktvann (Nordland, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1991-06-11 | 1991-06-11 | | Jåbekkvannet (Agder, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1994-09-07 | 1994-09-07 | | Litlevatn (Møre og Romsdal, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1994-04-27 | 1994-04-27 | | Litlevatn (Møre og Romsdal, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1994-11-24 | 1994-11-24 | | Vasslivatnet (Rogaland, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-09-22 | 1989-09-22 | | Granavatnet (Trøndelag, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-09-14 | 1989-09-14 | | Lauvtjønna (Trøndelag, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-09-19 | 1989-09-19 | | Grindheimsvatnet (Agder, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1990-06-06 | 1990-06-06 | | Eikedokktjernet (Buskerud, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-10-10 | 1989-10-10 | | Ibestadvatnet (Troms, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-09-04 | 1989-09-04 | | Lianvatnet (Trøndelag, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1994-06-03 | 1994-06-03 | | Opsangervatnet (Vestland, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-09-25 | 1989-09-25 | | Opsangervatnet (Vestland, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-11-07 | 1989-11-07 | | Moensvatnet (Vestland, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1990-09-14 | 1990-09-14 | | Reiarsvatnet (Rogaland, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-09-21 | 1989-09-21 | | Midsjøvannet (Akershus, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-09-13 | 1989-09-13 | | Skarvatnet (Møre og Romsdal, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-09-05 | 1989-09-05 | | Nøklevann (Oslo, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-10-11 | 1989-10-11 | | Rørvatnet (Møre og Romsdal, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-09-13 | 1989-09-13 | | Reinsvolldammen (Innlandet, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-09-14 | 1989-09-14 | | Kjemsjøen (Innlandet, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-09-14 | 1989-09-14 | | Oltervatnet (Nordland, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-09-15 | 1989-09-15 | | Elgtjern (Trøndelag, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-09-13 | 1989-09-13 | | Skjelbreidvatnet (Vestland, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-08-31 | 1989-08-31 | | Langavatnet (Vestland, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-09-06 | 1989-09-06 | | Hjørungdalsvatnet (Møre og Romsdal, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1992-09-18 | 1992-09-18 | | Reiarsvatnet (Rogaland, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1989-09-18 | 1989-09-18 | | Reiarsvatnet (Rogaland, Norway) |
| Tjønnaks (Potamogeton sp.) | | 1994-09-05 | 1994-09-05 | | Korssjøen (Vestfold, Norway) |