yard grass vs Eleusine indica

yard grass and Eleusine indica both are nouns.

Word	Noun	Adjective	Verb	Adverb
yard grass	Yes	No	No	No
Eleusine indica	Yes	No	No	No

As nouns, yard grass and Eleusine indica are synonyms defined as:

yard grass and Eleusine indica: coarse annual grass having fingerlike spikes of flowers; native to Old World tropics; a naturalized weed elsewhere

Other synonyms of yard grass include goose grass, wire grass, yardgrass.

yard grass (noun)	Eleusine indica (noun)
coarse annual grass having fingerlike spikes of flowers; native to Old World tropics; a naturalized weed elsewhere	coarse annual grass having fingerlike spikes of flowers; native to Old World tropics; a naturalized weed elsewhere