Pteridium esculentum vs bracken

Pteridium esculentum and bracken both are nouns.

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

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

Pteridium esculentum and bracken: fern of southeastern Asia; not hardy in cold temperate regions

Pteridium esculentum (noun)	bracken (noun)
fern of southeastern Asia; not hardy in cold temperate regions	large coarse fern often several feet high; essentially weed ferns; cosmopolitan
	fern of southeastern Asia; not hardy in cold temperate regions