This name is a synonym of Lepidium eastwoodiae Wooton.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 4104926) with original publication details: Madroño 3(7): 311 1936.
This name was in version 1 of The Plant List, record tro-4104926, and has not been changed.