English walnut vs Juglans regia

English walnut and Juglans regia both are nouns.

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

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

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

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

English walnut (noun)	Juglans regia (noun)
nut with a wrinkled two-lobed seed and hard but relatively thin shell; widely used in cooking	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