spider brake vs Pteris multifida

spider brake and Pteris multifida both are nouns.

Word	Noun	Adjective	Verb	Adverb
spider brake	Yes	No	No	No
Pteris multifida	Yes	No	No	No

As nouns, spider brake and Pteris multifida are synonyms defined as:

Other synonyms of spider brake include spider fern.

spider brake (noun)	Pteris multifida (noun)
Asiatic fern introduced in America	Asiatic fern introduced in America