Cyclophorus lingua vs tongue fern

Cyclophorus lingua and tongue fern both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cyclophorus lingua	Yes	No	No	No
tongue fern	Yes	No	No	No

As nouns, Cyclophorus lingua and tongue fern are synonyms defined as:

Cyclophorus lingua and tongue fern: east Asian fern having fronds shaped like tongues; sometimes placed in genus Cyclophorus

Other synonyms of Cyclophorus lingua include felt fern, Pyrrosia lingua.

Cyclophorus lingua (noun)	tongue fern (noun)
east Asian fern having fronds shaped like tongues; sometimes placed in genus Cyclophorus	east Asian fern having fronds shaped like tongues; sometimes placed in genus Cyclophorus