Echinocactus araneolarius Rchb. ex Walp., Repert. Bot. Syst. 2: 317. 1843 Echinocactus araneolarius Rchb. ex Walp., Repert. Bot. Syst. 2: 317. 1843is basionym for Notocactus araneolarius (Rchb.) Herter in Cactus (Paris) 42: 120. 1954Taxon for this nameEchinocactus araneolarius Rchb. ex Walp.