Astrophytum capricorne (A.Dietr.) Britton & Rose
      
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2 115311 Astrophytum capricorne (A.Dietr.) Britton & Rose [80 368865 Echinocactus capricornis A.Dietr.] Cactaceae
N.L. Britton, J.N. Rose, Cact., vol. 3 : t. 21 (1922) [M.E. Eaton]