goat grass vs Aegilops triuncalis

goat grass and Aegilops triuncalis both are nouns.

Word	Noun	Adjective	Verb	Adverb
goat grass	Yes	No	No	No
Aegilops triuncalis	Yes	No	No	No

As nouns, goat grass and Aegilops triuncalis are synonyms defined as:

goat grass and Aegilops triuncalis: European grass naturalized as a weed in North America; sharp-pointed seeds cause injury when eaten by livestock

goat grass (noun)	Aegilops triuncalis (noun)
European grass naturalized as a weed in North America; sharp-pointed seeds cause injury when eaten by livestock	European grass naturalized as a weed in North America; sharp-pointed seeds cause injury when eaten by livestock