dagger fern vs canker brake

dagger fern and canker brake both are nouns.

Word	Noun	Adjective	Verb	Adverb
dagger fern	Yes	No	No	No
canker brake	Yes	No	No	No

As nouns, dagger fern and canker brake are synonyms defined as:

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

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

dagger fern (noun)	canker brake (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