⚠ Version 1 of The Plant List has been superseded.
This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Arabis holboellii in version 1.1 of The Plant List.
This name is a synonym of Boechera retrofracta .
The record derives from Tropicos which reports it as a synonym (record 50111620
) with original publication details: Res. Stud. State Coll. Wash. 4(1): 28 28 1936.