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CCDB → Angiosperms → Poaceae → Zizania
| Taxon name | Status | Median (n) |
| Zizania aquatica L. | Accepted | 15 |
| Zizania aquatica var. interior Fassett | Accepted | 15 |
| Zizania latifolia (Griseb.) Turcz. ex Stapf | Accepted | 17 |
| Zizania palustris L. | Accepted | 15 |
| Zizania texana Hitchc. | Accepted | 15 |
| Zizania aquatica var. brevis Fassett | Synonym of Zizania aquatica L. | 15 |