Thelocactus hexaedrophorus var. paradensis Pilbeam, Cactus File Handb. 1: 31. 1996 Thelocactus hexaedrophorus var. paradensis Pilbeam, Cactus File Handb. 1: 31. 1996Taxon for this nameThelocactus hexaedrophorus var. paradensis Pilbeam
