Species: Knappsiv (Juncus conglomeratus)
| Site | Municipality (county) | Num. obs. | Num. species | Num. images | Last obs. | |
|---|
| Akersvannet | Vestfold, Norway | 1 | 1 | 0 | 1989-09-13 | |
| Almåselv | Vestland, Norway | 1 | 1 | 0 | 2015-08-31 | |
| Arkavatnet | Rogaland, Norway | 1 | 1 | 0 | 1989-08-28 | |
| Bjorøy | Vestland, Norway | 1 | 1 | 0 | 2006-05-09 | |
| Gravdalsvatnet | Vestland, Norway | 1 | 1 | 0 | 1989-09-18 | |
| Hjørungdalsvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1989-09-06 | |
| Hostadvatnet | Møre og Romsdal, Norway | 1 | 1 | 0 | 1990-09-18 | |
| Korssjøen | Vestfold, Norway | 1 | 1 | 0 | 1993-09-09 | |
| Merkestjørna | Vestland, Norway | 1 | 1 | 0 | 1990-06-06 | |
| Nøklevann | Oslo, Norway | 2 | 1 | 0 | 1989-10-04 | |
| Rossevatn | Rogaland, Norway | 1 | 1 | 0 | 1989-09-06 | |
| Smertudammen | Østfold, Norway | 1 | 1 | 0 | 2017-08-29 | |
| Storavatnet | Vestland, Norway | 1 | 1 | 0 | 1989-09-26 | |
| Tornesvatnet | Rogaland, Norway | 1 | 1 | 0 | 1989-09-07 | |
| Tretjønnet | Agder, Norway | 2 | 1 | 0 | 1990-06-26 | |
| Ulfsbakktjønn | Vestfold, Norway | 3 | 1 | 0 | 1997-09-16 | |
| Valen | Vestland, Norway | 1 | 1 | 1 | 2014-06-05 | |
| Øksnevadtjørna | Rogaland, Norway | 1 | 1 | 0 | 1994-11-23 | |