roast beef plant vs Iris foetidissima

roast beef plant and Iris foetidissima both are nouns.

Word	Noun	Adjective	Verb	Adverb
roast beef plant	Yes	No	No	No
Iris foetidissima	Yes	No	No	No

As nouns, roast beef plant and Iris foetidissima are synonyms defined as:

roast beef plant and Iris foetidissima: iris with purple flowers and foul-smelling leaves; southern and western Europe and North Africa

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

roast beef plant (noun)	Iris foetidissima (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