All Species in Hydrophyllum
- Ballhead Waterleaf (Hydrophyllum capitatum)
- Bluntleaf Waterleaf (Hydrophyllum canadense)
- Brown's Waterleaf (Hydrophyllum brownei)
- Eastern Waterleaf (Hydrophyllum virginianum)
- Fendler's Waterleaf (Hydrophyllum fendleri)
- Great Waterleaf (Hydrophyllum appendiculatum)
- Hydrophyllum alpestre (Hydrophyllum alpestre)
- Hydrophyllum capitatum var. capitatum (Hydrophyllum capitatum var. capitatum)
- Hydrophyllum capitatum var. thompsonii (Hydrophyllum capitatum var. thompsonii)
- Hydrophyllum fendleri var. albifrons (Hydrophyllum fendleri var. albifrons)
- Hydrophyllum fendleri var. fendleri (Hydrophyllum fendleri var. fendleri)
- Hydrophyllum virginianum var. atranthum (Hydrophyllum virginianum var. atranthum)
- Hydrophyllum virginianum var. virginianum (Hydrophyllum virginianum var. virginianum)
- Largeleaf Waterleaf (Hydrophyllum macrophyllum)
- Pacific Waterleaf (Hydrophyllum tenuipes)
- Western Waterleaf (Hydrophyllum occidentale)