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 (record B341491E-81EF-4E5D-A534-70B654298E2F) with original publication details: 432 1975.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:233737-1.
This name was in version 1 of The Plant List, record gcc-81855.