common moonwort vs grape fern

common moonwort and grape fern both are nouns.

Word	Noun	Adjective	Verb	Adverb
common moonwort	Yes	No	No	No
grape fern	Yes	No	No	No

As nouns, grape fern is a hypernym of common moonwort; that is, grape fern is a word with a broader meaning than common moonwort:

common moonwort: of America and Eurasia and Australia
grape fern: a fern of the genus Botrychium having a fertile frond bearing small grapelike clusters of spore cases

common moonwort (noun)	grape fern (noun)
of America and Eurasia and Australia	a fern of the genus Botrychium having a fertile frond bearing small grapelike clusters of spore cases