See text Pilosocereus (from Latin, "hairy cereus") is a genus of cactus native to the Neotropics.

[2] The genera Caerulocereus and Pseudopilocereus are synonyms of this genus.

[1] The commonly cultivated Pilosocereus pachycladus (syn.

Pilosocereus azureus) is a blue cactus with hairy areoles that emit golden spines.

As of October 2023[update], Plants of the World Online accepted the following species:[1]