Species (sp.): Brasmegras (Isoëtes sp.)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|---|---|---|---|---|---|
| Arkavatnet | Rogaland, Norway | 1 | 1 | 0 | 1989-08-28 | |
| Bergemsvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1994-10-11 | |
| Botnavatnet | Rogaland, Norway | 1 | 1 | 0 | 1989-09-12 | |
| Burudvann | Akershus, Norway | 1 | 1 | 0 | 1991-09-12 | |
| Floen | Vestland, Norway | 1 | 1 | 0 | 1994-11-24 | |
| Granavatnet | Trøndelag, Norway | 1 | 1 | 0 | 1997-09-04 | |
| Hjorteskogen | Vestland, Norway | 1 | 1 | 0 | 2012-09-21 | |
| Laksådalsvatnet | Nordland, Norway | 2 | 1 | 0 | 1995-06-08 | |
| Langavatnet | Vestland, Norway | 1 | 1 | 0 | 1989-08-31 | |
| Lauvtjønna | Trøndelag, Norway | 1 | 1 | 0 | 1989-09-14 | |
| Liavatnet | Vestland, Norway | 1 | 1 | 0 | 1994-09-14 | |
| Longvatnet | Rogaland, Norway | 2 | 1 | 0 | 1990-09-28 | |
| Madsvannet | Nordland, Norway | 1 | 1 | 0 | 1990-09-22 | |
| Myklavatnet | Vestland, Norway | 1 | 1 | 0 | 1990-09-25 | |
| Nøklevann | Oslo, Norway | 1 | 1 | 0 | 1994-09-05 | |
| Opsangervatnet | Vestland, Norway | 2 | 1 | 0 | 1993-06-09 | |
| Prestvatn | Agder, Norway | 3 | 1 | 0 | 1994-09-12 | |
| Rossevatn | Rogaland, Norway | 1 | 1 | 0 | 1989-09-06 | |
| Rudolf Steinerskolen Holtebrekk | Akershus, Norway | 1 | 1 | 0 | 2006-08-24 | |
| Skjelbreidvatnet | Vestland, Norway | 1 | 1 | 0 | 1991-06-06 | |
| Tretjønnet | Agder, Norway | 1 | 1 | 0 | 1989-09-27 | |
| Østernvannet | Akershus, Norway | 1 | 1 | 0 | 1990-08-28 |