drooping brome vs downy bromegrass

drooping brome and downy bromegrass both are nouns.

Word	Noun	Adjective	Verb	Adverb
drooping brome	Yes	No	No	No
downy bromegrass	Yes	No	No	No

As nouns, drooping brome and downy bromegrass are synonyms defined as:

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

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

drooping brome (noun)	downy bromegrass (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