bluejack oak

bluejack

[bloo-jak]
noun
a small oak, Quercus incana, of the southern U.S., having crooked branches and blue-green leaves.
Also called bluejack oak.


Origin:
1855–60, Americanism; blue + jack1, modeled after blackjack; so called from the bluish look of the leaves

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Based on the Random House Dictionary, © Random House, Inc. 2014.
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WordNet
bluejack oak

noun
small semi-evergreen shrubby tree of southeastern United States having hairy young branchlets and leaves narrowing to a slender bristly point 
WordNet® 3.0, © 2006 by Princeton University.
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