Fern

Ferns are a type of a vascular plant characterized by spores, complex leaves, and the lack of seeds and flowers. Ferns belong to a class of plants known as Polypodiopsida, which is further divided into 4 extant subclasses; Equisetidae, Marattiidae, Ophioglossidae, and Polypodiidae.[1] Ferns are thought to have originated some 359 million years ago during the Carboniferous period, but it is possible that this group of vascular plants is even older.[2]