1. (pantropical aquatic fern)
różdżyca rutewkowata, różdżyca rutewkowa
synonim: Ceratopteris thalictroides

2. (small free-floating aquatic fern from the eastern United States to tropical America
naturalized in western and southern Europe)
azolla karolińska, azolla paprotkowa, azolla drobna: : synonim: mosquito fern
synonim: Carolina pond fern
synonim: Azolla caroliniana

3. (aquatic fern of tropical America often used in aquariums)
różdżyca pływająca: : synonim: water sprite
synonim: Ceratopteris pteridioides