CCDB → Angiosperms → Potamogetonaceae → Zannichellia
| Taxon name | Status | Median (n) |
| Zannichellia contorta (Desf.) Cham. | Accepted | 6 |
| Zannichellia obtusifolia Talavera & García-Mur. & H. Smit | Accepted | 6 |
| Zannichellia palustris L. | Accepted | 14 |
| Zannichellia palustris subsp. pedicellata (Wahlenb. & Rosén) Hook. | Accepted | 12 |
| Zannichellia peltata Bertol. | Accepted | 6 |
| Zannichellia palustris None | Synonym of Zannichellia palustris L. | 14 |
| Zannichellia palustris subsp. palustris | Synonym of Zannichellia palustris L. | 14 |
| Zannichellia palustris subsp. polycarpa (Nolte) K. Richt. | Synonym of Zannichellia palustris L. | 14 |
| Zannichellia palustris subsp. repens (Boenn.) Schübl. & G. Martens | Synonym of Zannichellia palustris L. | 14 |
| Zannichellia palustris subsp. pedicellata (Wahlenb. & Rosen) Arcang. | Synonym of Zannichellia palustris subsp. pedicellata (Wahlenb. & Rosén) Hook. | 12 |
| Zannichellia pedunculata Rchb. | Synonym of Zannichellia palustris subsp. pedicellata (Wahlenb. & Rosén) Hook. | 12 |
| Zannichellia peltata | Synonym of Zannichellia peltata Bertol. | 6 |