This name is a synonym of Cyanus segetum Hill.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 4E104DAB-AEAB-407E-8565-43700F9CFDCC) with original publication details: 122 1880.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190302-1.
This name was in version 1 of The Plant List, record gcc-36361.