| Family: | Cactaceae (kak-TAY-see-ee) (Info) |
| Genus: | Thelocactus (thel-oh-KAK-tus) (Info) |
| Species: | bicolor (BY-kul-ur) (Info) |
| Synonym: | Echinocactus bicolor |
| Synonym: | Hamatocactus bicolor |
| Synonym: | Ferocactus bicolor |
| Synonym: | Cactus bicolor |
| Synonym: | Thelocactus bicolor subsp. bicolor |