Gymnocalycium cardenasianum fa. Ex.Otmari

Gymnocalycium cardenasianum HTH 036

Gymnocalycium cardenasianum JO 193

Gymnocalycium carolinense ssp. ludwigii GN 89-162/442

Gymnocalycium castellanosii var. nigrum PJ 23

Gymnocalycium catamarcense f. ensispina OF 27-80

Gymnocalycium catamarcense var.montanum LF 37B

Gymnocalycium chacoense, selten

Gymnocalycium chubutense

Gymnocalycium coloradense CH 1236a

Gymnocalycium coloradense KA 16/27

Gymnocalycium coloradense KLA27A

Gymnocalycium denudatum (Spinnenkaktus)

Gymnocalycium erinacea JN 167

Gymnocalycium ferocior RS 1830