Cactus royenii L 1753 Cephalocereus brooksianus Britton & Rose Cephalocereus millspaughii Britton Cephalocereus nobilis (Haw.)

Britton & Rose Cephalocereus urbanianus (K.Schum.)

Britton & Rose Cereus nobilis Haw.

Pilosocereus millspaughii (Britton) Byles & G.D.Rowley[2] Pilosocereus royenii is a species of cactus found throughout the West Indies and the states of Yucatán and Quintana Roo in Mexico.

[2] It is composed of multiple long, tubular shaped branches, each ribbed with multiple sections and sharp spines.