A genus of aquatic ferns with distinctive horn-shaped or ear-shaped leaves, commonly called water sprite or floating ferns.
From Greek 'keras' (horn) + 'pteris' (fern). Named descriptively for the horn-like lobes visible on the fronds of these water plants.
Ceratopteris thalictroides has been called a 'living fossil' because its basic structure hasn't changed much in millions of years, yet it's so adaptable that it thrives in home aquariums from Florida to Southeast Asia to Europe.
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