Ceratophyllum demersum (Rigid Hornwort)
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2004 | 1 | 1 | 1 | 1 |
| 1992 | 1 | 1 | 1 | 1 |
| 1991 | 1 | 1 | 1 | 1 |
| 1989 | 1 | 2 | 2 | 2 |
| Totalt alle år | 1 | 4 | 4 | 5 |
| Year | Arter/grupper | Localities | Participants | Observations |
|---|---|---|---|---|
| 2004 | 1 | 1 | 1 | 1 |
| 1992 | 1 | 1 | 1 | 1 |
| 1991 | 1 | 1 | 1 | 1 |
| 1989 | 1 | 2 | 2 | 2 |
| Totalt alle år | 1 | 4 | 4 | 5 |