This name is a synonym of Crepis flexuosa (Ledeb.) Benth. ex C.B.Clarke.
The record derives from TICA which reports it as a synonym (record EC172F0D-1A30-47E0-9A8E-C7A9D248E92C) with original publication details: Fl. Altaic. 4: 145. 1833 145 1833.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:60440168-2.