Rorippa islandica var. glabrata (Lunell) Butters & Abbe

Rorippa islandica var. glabrata (Lunell) Butters & Abbe is a synonym sensu FNA Ed. Comm., 2010 of:

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