Water fern
# Water fern

Water fern is a common name for several plants and may refer to:

* Salviniales, an order of aquatic ferns
* Austroblechnum lanceolatum, syn. Blechnum chambersii, lance water fern
* Austroblechnum patersonii, syn. Blechnum patersonii, or strap water fern
* Austroblechnum penna-marina, syn. Blechnum penna-marina, or alpine water fern
* Azolla filiculoides
* Bolbitis heudelotii, or African water fern
* Cranfillia fluviatilis, syn. Blechnum fluviatile, or ray water fern
* Histiopteris incisa
* Lomaria nuda, syn. Blechnum nudum, or fishbone water fern
* Oceaniopteris cartilaginea, syn. Blechnum cartilagineum, or soft water fern
* Osmunda regalis
* Parablechnum wattsii, syn. Blechnum wattsii, or hard water fern
* Regnellidium diphyllum, or two-leaf water fern
* Salvinia molesta, or giant water fern
* Telmatoblechnum indicum, syn. Blechnum indicum, or swamp water fern
