This name is a synonym of Alyssum dasycarpum Stephan ex Willd..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 4105756) with original publication details: Fl. Altaic. 3: 51 1831.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:288239-1.
This name was in version 1 of The Plant List, record tro-4105756, and has not been changed.