Circassian walnut vs Persian walnut

Circassian walnut and Persian walnut both are nouns.

Word	Noun	Adjective	Verb	Adverb
Circassian walnut	Yes	No	No	No
Persian walnut	Yes	No	No	No

As nouns, Circassian walnut and Persian walnut are synonyms defined as:

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

Other synonyms of Circassian walnut include English walnut, English walnut tree, Juglans regia.

Circassian walnut (noun)	Persian walnut (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