This name is a synonym of Crepidifolium tenuifolium (Willd.) Sennikov.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 4C014FCF-A433-469A-BBD5-AF4E8F323B74) with original publication details: Fl. URSS xxix. 383 (1964). 383 1964.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:261096-1.
This name was in version 1 of The Plant List, record gcc-109728.