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 D807B20B-C53A-4E71-8948-07310A660B86) with original publication details: 155 1838.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:184205-1.
This name was in version 1 of The Plant List, record gcc-3869.