Genus: Staurastrum
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Akersvannet | Vestfold, Norway | 2 | 2 | 0 | 1993-09-16 | |
| Arkavatnet | Rogaland, Norway | 6 | 2 | 0 | 1994-09-12 | |
| Bergvikvatnet | Nordland, Norway | 2 | 1 | 0 | 1990-06-06 | |
| Bogstadvannet | Oslo, Norway | 1 | 1 | 0 | 1993-09-16 | |
| Botnavatnet | Rogaland, Norway | 1 | 1 | 0 | 1989-09-12 | |
| Burudvann | Akershus, Norway | 1 | 1 | 0 | 1991-09-12 | |
| Dælivannet | Akershus, Norway | 2 | 1 | 0 | 1991-09-07 | |
| Eidsvatnet | Møre og Romsdal, Norway | 2 | 1 | 0 | 1990-09-12 | |
| Elgtjern | Trøndelag, Norway | 2 | 1 | 0 | 1990-05-25 | |
| Floen | Vestland, Norway | 3 | 1 | 0 | 1993-10-04 | |
| Fløyta | Akershus, Norway | 2 | 2 | 0 | 1990-06-07 | |
| Frøylandsvatnet | Rogaland, Norway | 5 | 2 | 0 | 1994-09-28 | |
| Gravdalsvatnet | Vestland, Norway | 1 | 1 | 0 | 1989-09-18 | |
| Hammervatnet | Trøndelag, Norway | 2 | 1 | 0 | 1993-05-25 | |
| Hauskjevatnet | Rogaland, Norway | 1 | 1 | 0 | 1989-09-13 | |
| Hegglandsvatnet | Vestland, Norway | 3 | 2 | 0 | 1993-06-02 | |
| Hjørungdalsvatnet | Møre og Romsdal, Norway | 4 | 1 | 0 | 1994-09-13 | |
| Holdalsvatn | Nordland, Norway | 1 | 1 | 0 | 1994-09-05 | |
| Hostadvatnet | Møre og Romsdal, Norway | 5 | 3 | 0 | 1993-06-16 | |
| Husavatnet | Vestland, Norway | 9 | 3 | 0 | 1993-09-07 | |
| Klevatn | Nordland, Norway | 1 | 1 | 0 | 1993-09-07 | |
| Knurrvatnet | Nordland, Norway | 1 | 1 | 0 | 1989-08-30 | |
| Kolbotnvannet | Akershus, Norway | 3 | 1 | 0 | 1991-06-03 | |
| Koltjønna | Trøndelag, Norway | 1 | 1 | 0 | 1994-06-02 | |
| Kruktjønna | Trøndelag, Norway | 2 | 1 | 0 | 1991-08-28 | |
| Laksådalsvatnet | Nordland, Norway | 1 | 1 | 0 | 1991-06-05 | |
| Lauvtjønna | Trøndelag, Norway | 2 | 2 | 0 | 1993-06-11 | |
| Lianvatnet | Trøndelag, Norway | 3 | 1 | 0 | 1990-10-17 | |
| Liavatnet | Vestland, Norway | 1 | 1 | 0 | 1994-06-06 | |
| Litlvatnet | Trøndelag, Norway | 1 | 1 | 0 | 1993-09-15 | |
| Ljøgodttjern | Akershus, Norway | 2 | 2 | 0 | 1993-08-30 | |
| Midsjøvannet | Akershus, Norway | 1 | 1 | 0 | 1993-09-19 | |
| Mosvatnet | Rogaland, Norway | 8 | 2 | 0 | 1994-09-28 | |
| Myklavatnet | Vestland, Norway | 1 | 1 | 0 | 1993-09-14 | |
| Nøklevann | Oslo, Norway | 1 | 1 | 0 | 1990-09-11 | |
| Raudsjøen | Trøndelag, Norway | 1 | 1 | 0 | 1990-08-31 | |
| Reiarsvatnet | Rogaland, Norway | 2 | 2 | 0 | 1991-09-16 | |
| Rossevatn | Rogaland, Norway | 2 | 1 | 0 | 1991-09-17 | |
| Rørvatnet | Møre og Romsdal, Norway | 6 | 1 | 0 | 1994-09-07 | |
| Sennsjøen | Innlandet, Norway | 1 | 1 | 0 | 1996-09-10 | |
| Skjelbreidvatnet | Vestland, Norway | 3 | 3 | 0 | 1991-06-06 | |
| Spildervatnet | Nordland, Norway | 3 | 2 | 0 | 1993-06-11 | |
| Stavsjø | Innlandet, Norway | 9 | 4 | 0 | 1993-09-24 | |
| Storavatnet | Vestland, Norway | 6 | 1 | 0 | 1993-09-02 | |
| Stordammen | Akershus, Norway | 2 | 2 | 0 | 1989-09-08 | |
| Sundkilen | Telemark, Norway | 3 | 1 | 0 | 1990-06-01 | |
| Svartaholtjørnet | Vestland, Norway | 2 | 2 | 0 | 1996-09-17 | |
| Svartåstjern | Buskerud, Norway | 1 | 1 | 0 | 1990-09-24 | |
| Tornesvatnet | Rogaland, Norway | 4 | 4 | 0 | 1990-09-27 | |
| Tveitevannet | Vestland, Norway | 2 | 2 | 0 | 1992-09-10 | |