| the blackjack, Quercus marilandica. |
| 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 |