Meaning : Pantropical aquatic fern.
Synonyms : ceratopteris thalictroides
Meaning : Aquatic fern of tropical America often used in aquariums.
Synonyms : ceratopteris pteridioides, water sprite
Meaning : Small free-floating aquatic fern from the eastern United States to tropical America. Naturalized in western and southern Europe.
Synonyms : azolla caroliniana, carolina pond fern, mosquito fern