Genus: Sjøsivaksslekta (Schoenoplectus)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2019 | 1 | 1 | 1 | 1 |
| 2015 | 1 | 1 | 1 | 1 |
| 2008 | 1 | 1 | 1 | 1 |
| 2005 | 1 | 1 | 1 | 1 |
| 2004 | 1 | 1 | 1 | 1 |
| 2003 | 1 | 1 | 1 | 1 |
| 2001 | 1 | 1 | 1 | 1 |
| 2000 | 1 | 1 | 1 | 1 |
| 1996 | 1 | 1 | 1 | 1 |
| 1994 | 1 | 6 | 6 | 6 |
| 1993 | 1 | 3 | 3 | 3 |
| 1992 | 1 | 5 | 5 | 5 |
| 1991 | 1 | 2 | 2 | 2 |
| 1990 | 1 | 4 | 4 | 4 |
| 1989 | 1 | 23 | 25 | 25 |
| Totalt alle år | 1 | 41 | 45 | 54 |
Sustain.no is provided by the Norwegian Centre for Science Education