hay-scented fern vs hay-scented

hay-scented fern and hay-scented both are nouns.

Word	Noun	Adjective	Verb	Adverb
hay-scented fern	Yes	No	No	No
hay-scented	Yes	No	No	No

As nouns, hay-scented fern and hay-scented are synonyms defined as:

hay-scented fern and hay-scented: fern of eastern North America with pale green fronds and an aroma like hay

Other synonyms of hay-scented fern include boulder fern, Dennstaedtia punctilobula, scented fern.

hay-scented fern (noun)	hay-scented (noun)
fern of eastern North America with pale green fronds and an aroma like hay	fern of eastern North America with pale green fronds and an aroma like hay