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CCDB → Angiosperms → Cactaceae → Carnegiea
| Taxon name | Status | Median (n) |
| Carnegiea gigantea (Engelm.) Britton & Rose | Accepted | 11 |
| Cereus giganteus Engelm. | Synonym of Carnegiea gigantea (Engelm.) Britton & Rose | 11 |