Thelocactus unguispinus (Engelm.) G.D.Rowley in Excelsa 12: 30. 1986
Thelocactus unguispinus in Excelsa 12: 30. 1986
is new combination for Echinocactus unguispinus, Mem. Tour N. Mexico: 111. 1848
Thelocactus unguispinus in Excelsa 12: 30. 1986
Taxon for this name