stinking iris vs stinking gladwyn

stinking iris and stinking gladwyn both are nouns.

Word	Noun	Adjective	Verb	Adverb
stinking iris	Yes	No	No	No
stinking gladwyn	Yes	No	No	No

As nouns, stinking iris and stinking gladwyn are synonyms defined as:

stinking iris and stinking gladwyn: iris with purple flowers and foul-smelling leaves; southern and western Europe and North Africa

Other synonyms of stinking iris include gladdon, gladdon iris, Iris foetidissima, roast beef plant.

stinking iris (noun)	stinking gladwyn (noun)
iris with purple flowers and foul-smelling leaves; southern and western Europe and North Africa	iris with purple flowers and foul-smelling leaves; southern and western Europe and North Africa