Noun: jack oak jak owk
- Small to medium deciduous oak of east central North America; leaves have sharply pointed lobes
"Jack oaks dominated the sandy upland forest";
- northern pin oak, Quercus ellipsoidalis
- 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
"jack oak covered the dry, sandy hillsides";
- blackjack oak, blackjack, Quercus marilandica
Derived forms: jack oaks
Type of: oak, oak tree, scrub oak
Encyclopedia: Jack oak