Deering's tree cactus

Description

Pilosocereus polygonus is a species of Magnoliopsida first described by Jean-Baptiste de Lamarck, and given its simplified Asian name by Byles and Gordon Douglas Rowley. Pilosocereus polygonus belongs to the genus Pilosocereus, and the family Cactaceae. Pilosocereus (from Latin, "hairy cereus") is a genus of cactus native to the Neotropics. 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.