Suleyman Demir notes:
Syn.C .pseudoradians,
C .radians v.pseudoradians,
C .reduncispina, C.pycnacantha sensu S.Arias, S.Gama, L.U.Guzman, Flora del Valle de Tehuacan-Cuicatlan, UNAM: 10-12, 1997.
This sp.has very variable spine paterns. It may display a stem without any central spine, but it can grow with 1, 2 or 3 black centrals also, which usually are regularly arranged, but sometimes point to diverse directions in irregular, wild appearance.
-Suleyman Demir
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