Species: Branched Bur-reed (Sparganium erectum)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Arkavatnet | Rogaland, Norway | 1 | 1 | 0 | 1989-08-28 | |
| Dælivannet | Akershus, Norway | 1 | 1 | 0 | 1989-08-04 | |
| Frøylandsvatnet | Rogaland, Norway | 1 | 1 | 0 | 1991-09-11 | |
| Hammervatnet | Trøndelag, Norway | 1 | 1 | 0 | 1989-10-08 | |
| Harestuvannet | Akershus, Norway | 1 | 1 | 0 | 1990-09-04 | |
| Ledengstjern | Østfold, Norway | 1 | 1 | 0 | 1994-05-27 | |
| Ljøgodttjern | Akershus, Norway | 1 | 1 | 0 | 1989-09-21 | |
| Midsjøvannet | Akershus, Norway | 1 | 1 | 0 | 1989-09-21 | |
| Myklavatnet | Vestland, Norway | 1 | 1 | 0 | 1990-09-25 | |
| Myravatnet | Vestland, Norway | 1 | 1 | 0 | 1989-09-14 | |
| Pytt ved Strand gård | Trøndelag, Norway | 1 | 1 | 0 | 2004-09-14 | |
| Pytt ved Strand gård | Trøndelag, Norway | 1 | 1 | 1 | 2004-08-14 | |
| Rossevatn | Rogaland, Norway | 1 | 1 | 0 | 1989-09-06 | |
| Semsvannet | Akershus, Norway | 1 | 1 | 0 | 1989-09-21 | |
| Stavsjø | Innlandet, Norway | 2 | 1 | 0 | 1989-09-05 | |
| Tornesvatnet | Rogaland, Norway | 1 | 1 | 0 | 1989-09-07 | |
| Årungen | Akershus, Norway | 1 | 1 | 0 | 1989-09-18 | |