This name is a synonym of Armoracia rusticana P.Gaertn., B.Mey. & Scherb..
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: Univ. Missouri Studies, Sci. Ser. 2(2): 130 1911.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:278738-1.
This name was in version 1 of The Plant List, record kew-2652942.