Persicaria hydropiper (L.) Delarbre [ Polygonum hydropiper L.]
      
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6 770860 Persicaria hydropiper (L.) Delarbre [125 822648 Polygonum hydropiper L.] Polygonaceae
J.E. Smith, Engl. Bot., ed. 3, vol. 8 : t. 1234 (1868)