Soehrensia formosa subsp. rosarioana Soehrensia formosa subsp. kieslingii Soehrensia formosa subsp. korethroides Soehrensia formosa subsp. formosa Soehrensia formosa subsp. randallii
Lobivia oreopepon Lobivia oreopogon Melocactus gilliesii Trichocereus formosus Soehrensia oreopepon Acanthocalycium formosum Echinocactus formosus var. crassispinus Echinopsis formosa var. albispina Echinopsis formosa var. laevior Echinopsis formosa var. spinosior Cereus gilliesii Echinocactus gilliesii Acanthocalycium oreopogon Soehrensia formosa var. maxima Soehrensia formosa var. polycephala Echinopsis oreopepon Lobivia formosa Echinocactus formosus Echinonyctanthus formosus Echinopsis formosa Echinopsis oreopogon Acanthocalycium formosum var. albispinum Echinopsis formosa var. rubrispina Acanthocalycium formosanum var. albispinum
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024