Persian walnut vs Juglans regia

Persian walnut and Juglans regia both are nouns.

Word	Noun	Adjective	Verb	Adverb
Persian walnut	Yes	No	No	No
Juglans regia	Yes	No	No	No

As nouns, Persian walnut and Juglans regia are synonyms defined as:

Persian walnut and Juglans regia: Eurasian walnut valued for its large edible nut and its hard richly figured wood; widely cultivated

Other synonyms of Persian walnut include Circassian walnut, English walnut, English walnut tree.

Persian walnut (noun)	Juglans regia (noun)
Eurasian walnut valued for its large edible nut and its hard richly figured wood; widely cultivated	Eurasian walnut valued for its large edible nut and its hard richly figured wood; widely cultivated