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CCDB → Angiosperms → Araceae → Pistia
| Taxon name | Status | Median (n) |
| Pistia stratiotes L. | Accepted | 14 |
| Pistia stratiotes var. cuneata Engl. | Synonym of Pistia stratiotes L. | 14 |
| Pistia stratiotes var. spathulata (Michx.) Engl. | Synonym of Pistia stratiotes L. | 14 |