yellow ironweed vs golden ironweed

yellow ironweed and golden ironweed both are nouns.

Word	Noun	Adjective	Verb	Adverb
yellow ironweed	Yes	No	No	No
golden ironweed	Yes	No	No	No

As nouns, yellow ironweed and golden ironweed are synonyms defined as:

yellow ironweed and golden ironweed: perennial herb with showy yellow flowers; the eastern United States

Other synonyms of yellow ironweed include Actinomeris alternifolia, golden honey plant, Verbesina alternifolia, wingstem.

yellow ironweed (noun)	golden ironweed (noun)
perennial herb with showy yellow flowers; the eastern United States	perennial herb with showy yellow flowers; the eastern United States