English plantain vs ripple-grass

English plantain and ripple-grass both are nouns.

Word	Noun	Adjective	Verb	Adverb
English plantain	Yes	No	No	No
ripple-grass	Yes	No	No	No

As nouns, English plantain and ripple-grass are synonyms defined as:

English plantain and ripple-grass: an Old World plantain with long narrow ribbed leaves widely established in temperate regions

Other synonyms of English plantain include buckthorn, narrow-leaved plantain, Plantago lanceolata, ribgrass, ribwort.

English plantain (noun)	ripple-grass (noun)
an Old World plantain with long narrow ribbed leaves widely established in temperate regions	an Old World plantain with long narrow ribbed leaves widely established in temperate regions