Cephalocereus pentaedrophorus (Labour.) Britton & Rose
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Cephalocereus pentaedrophorus (Labour.) Britton & Rose [ Cereus pentaedrophorus Labour.] [Cactaceae]
N.L. Britton, J.N. Rose, Cact., vol. 2 : t. 4 (1920) [M.E. Eaton]