Cephalocereus senilis (Haw.) Pfeiff. [ Cactus bradypus Lehm.]
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Cephalocereus senilis (Haw.) Pfeiff. [ Cactus senilis Haw.] [Cactaceae]
Nova Acta Phys.-Med. Acad. Caes. Leop.-Carol. Nat. Cur., vol. 16(): : t. 12 (1833) [J.G.C. Lehman]