sweet acacia vs sweet wattle

sweet acacia and sweet wattle both are nouns.

Word	Noun	Adjective	Verb	Adverb
sweet acacia	Yes	No	No	No
sweet wattle	Yes	No	No	No

As nouns, sweet acacia and sweet wattle are synonyms defined as:

sweet acacia and sweet wattle: tropical American thorny shrub or small tree; fragrant yellow flowers used in making perfumery

Other synonyms of sweet acacia include Acacia farnesiana, cassie, flame tree, huisache, mimosa bush, scented wattle.

sweet acacia (noun)	sweet wattle (noun)
tropical American thorny shrub or small tree; fragrant yellow flowers used in making perfumery	tropical American thorny shrub or small tree; fragrant yellow flowers used in making perfumery