sweet chestnut vs European chestnut

sweet chestnut and European chestnut both are nouns.

Word	Noun	Adjective	Verb	Adverb
sweet chestnut	Yes	No	No	No
European chestnut	Yes	No	No	No

As nouns, sweet chestnut and European chestnut are synonyms defined as:

sweet chestnut and European chestnut: wild or cultivated throughout southern Europe, northwestern Africa and southwestern Asia

Other synonyms of sweet chestnut include Castanea sativa, Spanish chestnut.

sweet chestnut (noun)	European chestnut (noun)
wild or cultivated throughout southern Europe, northwestern Africa and southwestern Asia	wild or cultivated throughout southern Europe, northwestern Africa and southwestern Asia