| Lophotocarpus guayanensis (Kunth) J.G. Sm., 1894 |
| Lophotocarpus guayanensis var. echinocarpus (C. Mart.) Buchenau, 1903 |
| Lophotocarpus guayanensis var. typicus Buchenau, 1903 |
| Lophotocarpus seubertianus (C. Mart.) Buchenau, 1903 |
| Sagitta Guett., 1754 |
| Sagitta latifolia (Willd.) Nieuwl., 1913 |
| Sagittaria L., 1753 |
| Sagittaria acutifolia L. f., 1781 |
| Sagittaria angustifolia Lindl., 1828 |
| Sagittaria bracteata Willd. ex Kunth, 1841 |
| Sagittaria calycina Engelm. ex Torr., 1859 |
| Sagittaria calycina var. depauperata Engelm. ex J.G. Sm., 1899 |
| Sagittaria calycina var. fluitans Engelm. ex Torr., 1859 |
| Sagittaria calycina var. grandis Engelm., 1868 |
| Sagittaria calycina var. maxima Engelm. ex Torr., 1859 |
| Sagittaria calycina var. media Engelm. ex Torr., 1859 |
| Sagittaria cordifolia (L.) Lam., 1788 |
| Sagittaria cuneata E. Sheld., 1893 |
| Sagittaria demersa J.G. Sm., 1895 |
| Sagittaria echinocarpa C. Mart., 1829 |