| Tjernaks (Potamogeton natans) | | 59 | 76 | | 2011-09-15 |
| Tjønnaks (Potamogeton sp.) | | 33 | 39 | 1 | 2017-06-07 |
| Hjertetjernaks (Potamogeton perfoliatus) | | 20 | 23 | | 2013-06-05 |
| Grastjernaks (Potamogeton gramineus) | | 11 | 13 | | 2005-11-10 |
| Rusttjernaks (Potamogeton alpinus) | | 4 | 5 | | 2004-08-14 |
| Krustjernaks (Potamogeton crispus) | | 3 | 4 | | 1993-09-02 |
| Busttjernaks (Potamogeton pectinatus) | | 3 | 3 | | 1989-09-22 |
| Butt-tjernaks (Potamogeton obtusifolius) | | 3 | 3 | | 1992-10-05 |
| Kysttjønnaks (Potamogeton polygonifolius) | | 3 | 3 | | 2004-08-14 |
| Nøkketjernaks (Potamogeton praelongus) | | 3 | 3 | | 1994-09-05 |
| Småtjernaks (Potamogeton berchtoldii) | | 3 | 3 | | 1998-09-07 |
| Broddtjernaks (Potamogeton friesii) | | 2 | 2 | | 1989-09-14 |
| Blanktjernaks (Potamogeton lucens) | | 1 | 2 | | 1989-09-05 |