Notocactus multicostatus var. blaauwianus (Vliet) N.Gerloff & Neduchal in Internoto 25: 64. 2004
Notocactus multicostatus var. blaauwianus in Internoto 25: 64. 2004
is new combination for Notocactus blaauwianus in Succulenta (Netherlands) 55: 108–109, f. 1976