Notocactus horstii f. purpureus (F.Ritter) K.Herm in Internoto 14: 64. 1993
Notocactus horstii f. purpureus in Internoto 14: 64. 1993
is new combination for Notocactus purpureus in Succulenta (Netherlands) 49: 109. 1970
Notocactus horstii f. purpureus in Internoto 14: 64. 1993
Taxon for this name