| Name | Pilosocereus monoclonos (de Candolle) Byles & G. D. Rowley | 
| Authorship | (de Candolle) Byles & G. D. Rowley | 
| Rank | Species | 
| Placed in | Pilosocereus | 
| Citation | 1957 Cact. Succ. J. Gr. Brit. 19(3): 67 | 
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Pilosocereus monoclonos (de Candolle) Byles & G. D. Rowley | 
| Identification made in | [no date] (1) |