This name is a synonym of Raphanus raphanistrum subsp. sativus (L.) Domin.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 4105772) with original publication details: List Pl. Formosa 202 1928.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:288413-1.
This name was in version 1 of The Plant List, record tro-4105772.