Echinocactus oxyacanthus J.Forbes in Journ. Hort. Tour Germ.: 152. 1837 Echinocactus oxyacanthus J.Forbes in Journ. Hort. Tour Germ.: 152. 1837Taxon for this nameEchinocactus oxyacanthus J.Forbes in Journ. Hort. Tour Germ.: 152. 1837