ten-day fern vs leather fern

ten-day fern and leather fern both are nouns.

Word	Noun	Adjective	Verb	Adverb
ten-day fern	Yes	No	No	No
leather fern	Yes	No	No	No

As nouns, ten-day fern and leather fern are synonyms defined as:

ten-day fern and leather fern: widely distributed fern of tropical Southern Hemisphere having leathery pinnatifid fronds

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

ten-day fern (noun)	leather fern (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