This name is a synonym of Crepidiastrum denticulatum (Houtt.) Pak & Kawano.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record F3CEAC01-8B51-45B8-A19C-E424D4B5D8F7) with original publication details: 332 1811.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:192903-1.
This name was in version 1 of The Plant List, record gcc-132817.