pasture brake vs Pteridium aquilinum

pasture brake and Pteridium aquilinum both are nouns.

Word	Noun	Adjective	Verb	Adverb
pasture brake	Yes	No	No	No
Pteridium aquilinum	Yes	No	No	No

As nouns, pasture brake and Pteridium aquilinum are synonyms defined as:

pasture brake and Pteridium aquilinum: large coarse fern often several feet high; essentially weed ferns; cosmopolitan

Other synonyms of pasture brake include bracken, brake.

pasture brake (noun)	Pteridium aquilinum (noun)
large coarse fern often several feet high; essentially weed ferns; cosmopolitan	large coarse fern often several feet high; essentially weed ferns; cosmopolitan