Rorippa palustris subsp. occidentalis (S. Watson) Abrams

Rorippa palustris subsp. occidentalis (S. Watson) Abrams is a synonym sensu FNA Ed. Comm., 2010 of:

Rorippa palustris (Linnaeus) Besser subsp. palustris, an accepted subspecies name sensu FNA Ed. Comm., 2010.