Ferocactus wislizeni (Engelm.) Britton & Rose [ Echinocactus emoryi Engelm.]
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Ferocactus wislizeni (Engelm.) Britton & Rose [ Echinocactus wislizeni Engelm.] [Cactaceae]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 28 () [P. Roetter]