⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-4102552, and has not been changed.
This name is a synonym of Rorippa columbiae (S. Watson) Howell.
The record derives from Tropicos which reports it as a synonym (record 4102552) with original publication details: Contr. Dudley Herb. 3(5): 176 176 1941.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:222122-2.