Spongeplant (Limnobium) is a biological genus in the family Hydrocharitaceae (Waternymphs) and order Alismatales.
Limnobium spongia
Limnobium laevigatum
Vallisneria
Lagarosiphon
Halophila
Limnobium
Thalassia
Najas
Stratiotes
Elodea