Cephalocereus senilis (Haw.) Pfeiff. [ Cereus senilis (Haw.) Salm-Dyck ex DC.]
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Cephalocereus senilis (Haw.) Pfeiff. [ Cactus senilis Haw.] [Cactaceae]
W. Rhind, Hist. Veg. Kingd.: t. 12, fig. 2 (1868) [W.H. Fitch]