Ceratopteris thalictroides

Ceratopteris thalictroides is a fern species belonging to the genus Ceratopteris, one of only two genera of the subfamily Parkerioideae of the family Pteridaceae.

Rooted in mud, Ceratopteris thalictroides plants vary in size and appearance. The stipes of mature plants are 3-15 mm in diameter, spongy, and air-filled with 4–60 centimeters (1.6–23.6 in) long including its stipe.

Pale green, brown when matured, fertile fronds are 15–100 centimeters (5.9–39.4 in) or more, including the stipe, to 40 centimeters (16 in) long. Proliferous or dormant buds with their overlapping dark scales present in the axils of fertile pinnae are winged.

Ceratopteris thalictroides is part of the catalog of ayurvedic medicinal plants of Sri Lanka.