Stuckenia filiformis

Systematics :

Kingdom: Plantae
Artificial group: Vascular plant (Tracheophytes)
Superphylum: Spermatophyte
Phylum: Magnoliophyta
Class: Liliopsida
Family: Potamogetonaceae
Genus: Stuckenia
Species: Stuckenia filiformis

Other names: trådtjønnaks

Norwegian name: Trådtjernaks