cordgrass vs cord grass

cordgrass and cord grass both are nouns.

Word	Noun	Adjective	Verb	Adverb
cordgrass	Yes	No	No	No
cord grass	Yes	No	No	No

As nouns, cordgrass and cord grass are synonyms defined as:

cordgrass and cord grass: any of several perennial grasses of the genus Spartina; some important as coastal soil binders

cordgrass (noun)	cord grass (noun)
any of several perennial grasses of the genus Spartina; some important as coastal soil binders	any of several perennial grasses of the genus Spartina; some important as coastal soil binders