English walnut tree vs Juglans regia

English walnut tree and Juglans regia both are nouns.

Word	Noun	Adjective	Verb	Adverb
English walnut tree	Yes	No	No	No
Juglans regia	Yes	No	No	No

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

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

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

English walnut tree (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