This name is a synonym of Lepidium coronopus (L.) Al-Shehbaz.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 4102002) with original publication details: Encycl. 7: 76 1806.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:288900-1.
This name was in version 1 of The Plant List, record tro-4102002.