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Juglans X intermedia Carr. [nigra X regia].

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Juglans X quadrangulata (Carr.) Rehd. (pro sp.) [cinerea X regia].

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Juglans regia L. - English walnut.  Present in the Texas flora, no local name. No Texas distribution data available. Present in the CalFlora Database  Image available from the Vascular Plant Image Gallery.