The record derives from TICA
(data supplied on )
which reports it as a synonym (record
514AE7FC-B896-400C-A9AB-2FA5E864C074) with original publication details: C.H. Schultz in Flora 25. 1842 423 1842.
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 Lactuca caribaea in version 1 of The Plant List.