This name is a synonym of Cyanus cheiranthifolius subsp. willdenowii (Czerep.) Greuter.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record B71AA29F-1AF8-4482-B01A-BA90588BBBE4) with original publication details: 104 1999.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1015727-1.
This name was in version 1 of The Plant List, record gcc-63919.