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Genus Juglans. There are many different species in this genus; you'd have to be more specific to identify which one you mean.

The English walnut tree is Juglans regia. Black walnuts comprise a lot of different species, but probably the most common in the US is Juglans nigra, the Eastern Black Walnut. The Small Black Walnut in Texas is Juglans microcarpa, and a species is native to California as well (Juglans californica).

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14y ago

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