This name is a synonym of Brassica rapa L..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name with original publication details: Bot. Mag. (Tokyo) 22: 161 1908.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:279373-1.
This name was in version 1 of The Plant List, record kew-2682292.