leather fern vs Polystichum adiantiformis

leather fern and Polystichum adiantiformis both are nouns.

Word	Noun	Adjective	Verb	Adverb
leather fern	Yes	No	No	No
Polystichum adiantiformis	Yes	No	No	No

As nouns, leather fern and Polystichum adiantiformis are synonyms defined as:

leather fern and Polystichum adiantiformis: widely distributed fern of tropical Southern Hemisphere having leathery pinnatifid fronds

Other synonyms of leather fern include leatherleaf fern, Rumohra adiantiformis, ten-day fern.

leather fern (noun)	Polystichum adiantiformis (noun)
widely distributed fern of tropical Southern Hemisphere having leathery pinnatifid fronds	widely distributed fern of tropical Southern Hemisphere having leathery pinnatifid fronds
stout tropical swamp fern (especially tropical America) having large fronds with golden yellow sporangia covering the undersides