Grusonia bigelovii (Engelm.) G.D.Rowley in Tephrocactus Study Group 12(3): 43. 2006 Grusonia bigelovii (Engelm.) G.D.Rowley in Tephrocactus Study Group 12(3): 43. 2006is new combination for Opuntia bigelovii Engelm. in Proc. Amer. Acad. Arts 3: 307. 1856Taxon for this nameGrusonia bigelovii (Engelm.) G.D.Rowley