This name is a synonym of Daucus carota subsp. rupestris (Guss.) Heywood.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Fl. Sicul. Syn. 1: 335 1843.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:841205-1.
This name was in version 1 of The Plant List, record kew-2758120, and has not been changed.