cheatgrass vs Bromus tectorum

cheatgrass and Bromus tectorum both are nouns.

Word	Noun	Adjective	Verb	Adverb
cheatgrass	Yes	No	No	No
Bromus tectorum	Yes	No	No	No

As nouns, cheatgrass and Bromus tectorum are synonyms defined as:

cheatgrass and Bromus tectorum: annual or winter annual grass with softly hairy leaves of the Mediterranean

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

cheatgrass (noun)	Bromus tectorum (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