Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The species Ceratopteris thalictroides is a fern species belonging to the genus Ceratopteris, one of only two genera of the Ceratopteridaceae family. The species represents a special living form of ferns, and is thus of great botanical interest. The leaf and stem can also be used medically.It is commonly known as water sprite, Indian fern, water fern, Oriental waterfern, and water hornfern. In the Philippines it is called pakung-sungay (literally 'antler fern' or 'horn fern').

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