This name is a synonym of Cyanus depressus (M.Bieb.) Soják.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 7BACF649-F8AE-4652-933C-142D13D5B61F) with original publication details: 346 1808.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:190353-1.
This name was in version 1 of The Plant List, record gcc-10785.