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bluejack

noun
blue·jack | \ˈblüˌjak\
variants: or less commonly bluejack oak

Definition of bluejack 

: an oak (Quercus cinerea) of the southern U.S. with entire cuneate leaves and numerous small acorns

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History and Etymology for bluejack

blue entry 1 + -jack (as in blackjack oak); from the ashy appearance of the foliage

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