The record derives from TICA
(data supplied on )
which reports it as a synonym (record
8977EFB4-084A-44D2-9EE1-5A7F8093EBFC) with original publication details: "G.W.T.G. Bischoff, Beitr. Fl. Deutschl.. 1851" 25 1851.
This name record (from TICA) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Cichorium intybus in version 1 of The Plant List.