Synonyms
Spirillus perfoliatus var. richardsonii (A.Benn.) Nieuwl.
Potamogeton sachalinensis (H.Lév.) H.Lév.
Potamogeton perfoliatus var. richardsonii A.Benn.
Potamogeton perfoliatus var. sachalinensis H.Lév.
Potamogeton perfoliatus subsp. richardsonii (A.Benn.) Hultén
Potamogeton perfoliatus var. lanceolatus J.W.Robbins