American arrowroot vs arrowroot

American arrowroot and arrowroot both are nouns.

Word	Noun	Adjective	Verb	Adverb
American arrowroot	Yes	No	No	No
arrowroot	Yes	No	No	No

As nouns, American arrowroot and arrowroot are synonyms defined as:

American arrowroot and arrowroot: white-flowered West Indian plant whose root yields arrowroot starch

Other synonyms of American arrowroot include Maranta arundinaceae, obedience plant.

American arrowroot (noun)	arrowroot (noun)
white-flowered West Indian plant whose root yields arrowroot starch	white-flowered West Indian plant whose root yields arrowroot starch
	canna grown especially for its edible rootstock from which arrowroot starch is obtained
	a nutritive starch obtained from the root of the arrowroot plant