Potamogeton alpinus subsp. tenuifolius (Rafinesque) Hultén

Potamogeton alpinus subsp. tenuifolius (Rafinesque) Hultén is a synonym sensu FNA Ed. Comm., 2000 of:

Potamogeton alpinus Balbis, an accepted species name sensu FNA Ed. Comm., 2000.