This name is a synonym of Daucus carota subsp. commutatus (Paol.) Thell..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Fl. Italia 2: 186 1900.
This name was in version 1 of The Plant List, record kew-2757941.