Spirodela polyrhiza (L.) Schleid. [ Lemna polyrrhiza L.]
      
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6 968598 Spirodela polyrhiza (L.) Schleid. [125 591897 Lemna polyrrhiza L.] Lemnaceae
J.E. Smith, Engl. Bot., ed. 3, vol. 9 : t. 1397 (1869)