This name is a synonym of Pediocactus paradinei B.W. Benson.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50184606) with original publication details: Kakteen And. Sukk. 8(12): 188 1957.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:196483-2.
This name was in version 1 of The Plant List, record tro-50184606, and has not been changed.