Bidens laevis (L.) Britton [ Bidens helianthoides Kunth]
      
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6 142417 Bidens laevis (L.) Britton [125 500994 Helianthus laevis L.] Compositae
Carlos Bettfreund, Fl. Argent., vol. 2 : t. 65 (1899) [F. Burmeister]