- English walnut, English walnut tree, Circassian walnut, Persian walnut, Juglans regia - Eurasian walnut valued for its large edible nut and its hard richly figured wood; widely cultivated
--1 is a kind of walnut, walnut tree
--1 is a member of Juglans, genus Juglans
--1 has members: English walnut - English walnut - nut with a wrinkled two-lobed seed and hard but relatively thin shell; widely used in cooking
--2 is a kind of walnut
--2 is a member of
--2 has substance: walnut oilEnglish walnut, English walnut tree, Circassian walnut, Persian walnut, Juglans regia