Blue columnar cactus
(Pilosocereus pachycladus)
Description
Pilosocereus (from Latin, "hairy cereus") is a genus of cactus. Tree cactus is a common name for Pilosocereus species. The commonly cultivated Pilosocereus pachycladus (syn. Pilosocerus azureus) is a blue cactus with hairy areoles that emit golden spines.
Taxonomic tree:
Domain:
Kingdom: Plantae
Phylum:
Class: Magnoliopsida
Order:Caryophyllales
Family:Cactaceae
Genus:Pilosocereus
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