Cylindropuntia ×tetracantha (Toumey) F.M.Knuth, Kaktus-ABC: 124. 1936 ["1935"] Cylindropuntia ×tetracantha (Toumey) F.M.Knuth, Kaktus-ABC: 124. 1936 ["1935"]is new combination for Opuntia ×tetracantha Toumey in Gard. & Forest 9: 432. 1896Taxon for this nameCylindropuntia ×tetracantha (Toumey) F.M.Knuth