Pilosocereus pusillibaccatus was described in 1986, by Pierre Josef Braun and Eddie Esteves. P. pusillibaccatus is often confused with
Pilosocereus Machrisii, and is in the
Pilosocere aurisetus group along with
Pilosocereus vilaboensis, Pilosocereus aurisetus, Pilosocereus jauruensis, Pilosocereus parvus, and Pilosocereus machrisii. The name "Pusillibaccatus" refers to the small fruit this species produces. == References ==