This name is a synonym of Cyanthillium cinereum (L.) H.Rob..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 13FD2FAE-5BA2-494A-85DF-2F247A56BED5) with original publication details: Revis. Gen. Pl. 1 323 1891.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:186658-1.
This name was in version 1 of The Plant List, record gcc-25528.