dagger fern vs Christmas fern

dagger fern and Christmas fern both are nouns.

Word	Noun	Adjective	Verb	Adverb
dagger fern	Yes	No	No	No
Christmas fern	Yes	No	No	No

As nouns, dagger fern and Christmas fern are synonyms defined as:

dagger fern and Christmas fern: North American evergreen fern having pinnate leaves and dense clusters of lance-shaped fronds

Other synonyms of dagger fern include canker brake, evergreen wood fern, Polystichum acrostichoides.

dagger fern (noun)	Christmas fern (noun)
North American evergreen fern having pinnate leaves and dense clusters of lance-shaped fronds	North American evergreen fern having pinnate leaves and dense clusters of lance-shaped fronds