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6 770860 Persicaria hydropiper (L.) Delarbre [125 822648 Polygonum hydropiper L.]
T.F.L. Nees von Esenbeck, F.KL. Spenner, A. Putterlick, J.X.R. Caspary, Gen. Fl. Germ., vol. 1 (Dicotyledones 1, Monochlamidae): , fig. 7-13 (1835)
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