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CCDB → Angiosperms → Hydrocharitaceae → Hydrilla
| Taxon name | Status | Median (n) |
| Hydrilla verticillata (L.) Royle | Accepted | 8 |
| Hydrilla verticillata var. roxburghii Casp. | Synonym of Hydrilla verticillata (L.) Royle | 8 |
| Hydrilla verticillata var. verticillata | Synonym of Hydrilla verticillata (L.) Royle | 8 |