ribbon grass vs gardener's garters

ribbon grass and gardener's garters both are nouns.

Word	Noun	Adjective	Verb	Adverb
ribbon grass	Yes	No	No	No
gardener's garters	Yes	No	No	No

As nouns, ribbon grass and gardener's garters are synonyms defined as:

ribbon grass and gardener's garters: perennial grass of marshy meadows and ditches having broad leaves; Europe and North America

Other synonyms of ribbon grass include lady's laces, Phalaris arundinacea, reed canary grass.

ribbon grass (noun)	gardener's garters (noun)
perennial grass of marshy meadows and ditches having broad leaves; Europe and North America	perennial grass of marshy meadows and ditches having broad leaves; Europe and North America