Species: Knortetjernaks (Potamogeton trichoides)
Other names: knortetjønnaks, knortetjørnaks
Norwegian name: Knortetjernaks
Norwegian Red List (2021): Endangered
Systematics :
| Kingdom | Planteriket (Plantae) | |||||||
| Artificial group | Vascular plant (Tracheophytes) | |||||||
| Superphylum | Frøplanter (Spermatophyte) | |||||||
| Phylum | Dekkfrøete blomsterplanter (Magnoliophyta) | |||||||
| Klasse | Enfrøblader (Liliopsida) | |||||||
| Family | Tjernaksfamilien (Potamogetonaceae) | |||||||
| Genus | Tjernaksslekta (Potamogeton) | |||||||
| Species | Knortetjernaks (Potamogeton trichoides) | |||||||
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