It sends floating leaves. The Nuphar, Nymphaea and Nymphoides genera of plants will all produce floating leaves, depending in some cases upon light intensity and/or substrate enrichment. The latter genus is the banana plant, so called.
For true floaters, there is Ceratopteris (
Water Sprite) and
Amazon Frogbit (
Limnobium laevigatum). I have both, the latter flowers, quite lovely little flowers actually, most aquarium plants don't have much in the way of flowers but when my Frogbit bloomed I was quite surprised.
Duckweed can be a mess.
Salvinia is a similar but nicer (in my opinion) plant, but also small and thus likely to be more like
Duckweed. The other two I mentioned have larger leaves. Ceratopteris will spread right across the aquarium surface quickly, it is a good plant for water filtration because of its fast growth. And very useful with its dangling roots that hide fry, support bubblenests, serve as feeding grounds for many fish, etc.
Byron.
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