Acanthocalycium thionanthum subsp. ferrarii Acanthocalycium thionanthum subsp. thionanthum
Lobivia thionantha Acanthocalycium aurantiacum Acanthocalycium brevispinum Acanthocalycium chionanthum Acanthocalycium griseum Echinopsis thionantha Lobivia thionanthus Lobivia chionanthus Lobivia thionantha var. aurantiaca Lobivia thionantha var. brevispina Lobivia thionantha var. chionantha Lobivia thionantha var. erythrantha Acanthocalycium catamarcense Echinocactus chionanthus Echinocactus thionanthus Echinopsis aurantiaca Echinopsis brevispina Echinopsis chionantha Echinopsis thionantha Lobivia thionantha var. catamarcensis
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024