Potamogeton perfoliatus var. richardsonii A. Bennett
Potamogeton perfoliatus var. richardsonii A. Bennett is a synonym sensu FNA Ed. Comm., 2000 of:
Potamogeton richardsonii (A. Bennett) Rydberg, an accepted species name sensu FNA Ed. Comm., 2000.
Potamogeton perfoliatus var. richardsonii A. Bennett is a synonym sensu FNA Ed. Comm., 2000 of:
Potamogeton richardsonii (A. Bennett) Rydberg, an accepted species name sensu FNA Ed. Comm., 2000.