cheatgrass vs downy brome

cheatgrass and downy brome both are nouns.

Word	Noun	Adjective	Verb	Adverb
cheatgrass	Yes	No	No	No
downy brome	Yes	No	No	No

As nouns, cheatgrass and downy brome are synonyms defined as:

cheatgrass and downy brome: annual or winter annual grass with softly hairy leaves of the Mediterranean

Other synonyms of cheatgrass include Bromus tectorum, downy bromegrass, downy cheat, downy chess, drooping brome.

cheatgrass (noun)	downy brome (noun)
annual or winter annual grass with softly hairy leaves of the Mediterranean	annual or winter annual grass with softly hairy leaves of the Mediterranean