| Arten: |
| Acanthocalycium ferrarii W.Rausch |
| Acanthocalycium glaucum F.Ritter |
| Acanthocalycium klimpelianum ( Weidlich & Werderm. ) Backeb. |
| Acanthocalycium spiniflorum ( K.Schum. ) Backeb. |
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| Acanthocalycium spiniflorum ( K.Schum. ) Backeb. f. peitscheranum ( Backeb. ) Donald |
| Acanthocalycium spiniflorum ( K.Schum. ) Backeb. f. violaceum ( Werderm. ) Donald |
| Acanthocalycium thionanthum ( Speg. ) Backeb. |
| Acanthocalycium thionanthum ( Speg. ) Backeb. var. munitum ( Rausch ) J.G.Lambert |
| Acanthocalycium variiflorum Backeb. |