sweet wattle vs sweet acacia

sweet wattle and sweet acacia both are nouns.

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

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

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

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

sweet wattle (noun)	sweet acacia (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