| Family: | Cactaceae (kak-TAY-see-ee) (Info) |
| Genus: | Pilosocereus (pil-oh-so-KER-ee-us) (Info) |
| Species: | lanuginosus (lan-oo-gih-NO-sus) (Info) |
| Synonym: | Cactus lanuginosus |
| Synonym: | Cephalocereus lanuginosus |
| Synonym: | Pilocereus tweedyanus |
| Synonym: | Cereus tweedyanus |
| Synonym: | Pilosocereus backebergii |