eelgrass vs tape grass

eelgrass and tape grass both are nouns.

Word	Noun	Adjective	Verb	Adverb
eelgrass	Yes	No	No	No
tape grass	Yes	No	No	No

As nouns, eelgrass and tape grass are synonyms defined as:

eelgrass and tape grass: submerged aquatic plant with ribbonlike leaves; Old World and Australia

Other synonyms of eelgrass include Vallisneria spiralis, wild celery.

eelgrass (noun)	tape grass (noun)
submerged marine plant with very long narrow leaves found in abundance along North Atlantic coasts	submerged aquatic plant with ribbonlike leaves; Old World and Australia
submerged aquatic plant with ribbonlike leaves; Old World and Australia