This name is a synonym of Lactuca tatarica (L.) C.A.Mey..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 0FF05E52-AFBC-4B7B-89A7-D8CB2B5673F0) with original publication details: Madroño 5: 123. 1939 123 1939.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:134565-2.
This name was in version 1 of The Plant List, record gcc-67632.