This name is a synonym of Lactuca quercina L..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym and as an illegitimate name (record D0E301EB-86CD-4DA7-AB4B-78A335F7899E) with original publication details: 434 1822.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:194438-1.
This name was in version 1 of The Plant List, record gcc-85427.