Sagittaria guayanensis Kunth [ Lophotocarpus guayanensis var. echinocarpus (Mart.) Buchenau]
      
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63 898084 Sagittaria guayanensis Kunth Alismataceae
H.G.A. Engler, Pflanzenr., vol. 15 [Heft 16], (Alismataceae): p. 35, fig. 12 D (1903)