Potamogeton filiformis var. borealis (Rafinesque) H. St.John

Potamogeton filiformis var. borealis (Rafinesque) H. St.John is a synonym sensu Kaplan, 2008 of:

Stuckenia pectinata (Linnaeus) Börner, an accepted species name sensu FNA Ed. Comm., 2000.