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Adder's-tongues

Plant
Ophioglossum, the adder's-tongue ferns, is a genus of about 50 species of ferns in the family Ophioglossaceae. The name Ophioglossum comes from the Greek meaning "snake-tongue". Their cosmopolitan distribution is mainly in tropical and subtropical... Wikipedia
Class: Polypodiopsida
Scientific name: Ophioglossum
Order: Ophioglossales
Family: Ophioglossaceae
Kingdom: Plantae