This name is a synonym of Gibbaeum haaglenii H.E.K.Hartmann.
The record derives from WCSP (in review)
(data supplied on 2012-03-23)
which reports it as a synonym with original publication details: J. S. African Bot. 32: 128 1966.
This name was in version 1 of The Plant List, record kew-2825184, and has not been changed.