This name is a synonym of Carduus nutans L..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 95A65A6C-1898-42A3-995C-638CA095AE13) with original publication details: Oesterr. Bot. Z. 41 51 1891.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:188946-1.
This name was in version 1 of The Plant List, record gcc-75936.