Wolffia arrhiza (L.) Horkel ex Wimm. [ Lemna arrhiza L.]
      
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6 1075282 Wolffia arrhiza (L.) Horkel ex Wimm. [125 591835 Lemna arrhiza L.] Lemnaceae
J.E. Smith, Engl. Bot., ed. 3, vol. 9 : t. 1398 (1869)