Gymnocalycium platense (Speg.) Britton & Rose
      
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2 485888 Gymnocalycium platense (Speg.) Britton & Rose [80 369452 Echinocactus platensis Speg.] Cactaceae
N.L. Britton, J.N. Rose, Cact., vol. 3 : t. 18 (1922) [M.E. Eaton]