Hydrostachys angustisecta- Hydrostachys bismarckii
- Hydrostachys distichophylla
- Hydrostachys imbricata
- Hydrostachys insignis
- Hydrostachys longifida
- Hydrostachys lufirensis
- Hydrostachys maxima
- Hydrostachys monoica
- Hydrostachys multifida
- Hydrostachys plumosa
- Hydrostachys polymorpha
- Hydrostachys stolonifera
- Hydrostachys triaxialis
- Hydrostachys trifaria
- Hydrostachys verruculosa