jack oak

jack oak

noun
the blackjack, Quercus marilandica.

Origin:
1810–20, Americanism

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

noun
1. a common scrubby deciduous tree of central and southeastern United States having dark bark and broad three-lobed (club-shaped) leaves; tends to form dense thickets [syn: blackjack oak
2. small to medium deciduous oak of east central North America; leaves have sharply pointed lobes 
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