| Name | Pilosocereus leucocephalus (Poselger) Byles & G. D. Rowley | 
| Authorship | (Poselger) Byles & G. D. Rowley | 
| Rank | Species | 
| Placed in | Pilosocereus | 
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Pilosocereus leucocephalus (Poselger) Byles & G. D. Rowley | 
| Identification made in | [no date] (2) |