All Species in Hydrilla
- Hydrilla verticillata subsp. angustifolia (Hydrilla verticillata subsp. angustifolia)
- Hydrilla verticillata subsp. australis (Hydrilla verticillata subsp. australis)
- Hydrilla verticillata subsp. lithuanica (Hydrilla verticillata subsp. lithuanica)
- Hydrilla verticillata subsp. peregrina (Hydrilla verticillata subsp. peregrina)
- Hydrilla verticillata subsp. verticillata (Hydrilla verticillata subsp. verticillata)
- Waterthyme (Hydrilla verticillata)