Noun: blackjack oak
- 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
"Blackjack oak covered the dry, sandy hillsides";
- blackjack, jack oak, Quercus marilandica
Derived forms: blackjack oaks
Type of: scrub oak
Encyclopedia: Blackjack oak