This name is a synonym of Sonchus asper (L.) Hill.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 9193EB1D-7C02-4991-AD4E-19B51784E114) with original publication details: Prodr. Pl. Cap. 139. 139 1800.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:250153-1.
This name was in version 1 of The Plant List, record gcc-13835.