Ceratopteris pteridioides sunan kimiyya ne ga nau'in fern na ruwa a cikin dangin Pteridaceae. Sunan gama gari na wannan fern shine Watersprite ko Indiyanci. Karamin fern ne mai ganyaye masu laushi wanda za'a iya nutsar da shi cikin ruwa, yana mai da shi mashahurin zabi na aquariums da lambunan ruwa. Kalmar "Ceratopteris" ta samo asali ne daga kalmomin Helenanci "keras" ma'ana "ƙaho" da "pteron" ma'ana "reshe," yana nufin tsinkaya kamar ƙaho akan ganyen wasu nau'o'in a cikin wannan jinsin. "Pteridioides" yana nufin kamancen wannan fern da sauran tsire-tsire a cikin halittar Pteridium, wanda ya haɗa da ferns bracken.