Opuntia pachypus K.Schum. in Monatsschr. Kakteenk. 14: 26. 1904
Opuntia pachypus in Monatsschr. Kakteenk. 14: 26. 1904
is basionym for Austrocylindropuntia pachypus in Cactaceae (Berlin) 1942(2): 13. 1942
is basionym for Cylindropuntia pachypus, Kaktus-ABC: 120. 1936 ["1935"]
is basionym for Peruviopuntia pachypus in Cactology 2 (Suppl.): 2. 2011
Lectotype (designated by Iliff, J.: 51): [icon] Illustration ' Opuntia pachypus K. Sch. n. sp.' accompanying the protologue in in Monatsschr. Kakteenk. 14: 27. 1904 https://www.biodiversitylibrary.org/page/14257482