bracken vs Pteridium aquilinum

bracken and Pteridium aquilinum both are nouns.

Word	Noun	Adjective	Verb	Adverb
bracken	Yes	No	No	No
Pteridium aquilinum	Yes	No	No	No

As nouns, bracken and Pteridium aquilinum are synonyms defined as:

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

Other synonyms of bracken include brake, pasture brake.

bracken (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
fern of southeastern Asia; not hardy in cold temperate regions