Copiapoa megarhiza subsp. echinata Copiapoa echinata Copiapoa echinata var. pulla Copiapoa echinata f. pulla Copiapoa megarhiza var. echinata Copiapoa megarhiza subsp. echinata Copiapoa totoralensis Copiapoa echinata var. borealis Copiapoa intermedia Copiapoa coquimbana var. fiedleriana Copiapoa pepiniana var. fiedleriana Echinocactus fiedlerianus
World Flora Online, http://www.worldfloraonline.org/, accessed June 20, 2024