| Family: | Cactaceae (kak-TAY-see-ee) (Info) |
| Genus: | Echinopsis (ek-in-OP-sis) (Info) |
| Species: | terscheckii (ter-SHEK-ee-eye) (Info) |
| Synonym: | Trichocereus terscheckii |
| Synonym: | Cereus terscheckii |
| Synonym: | Pilocereus terscheckii |
| Synonym: | Trichocereus werdermannianus |
| Synonym: | Echinopsis werdermanniana |