jack oak

Other forms: jack oaks

Definitions of jack oak

1. noun

   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
   synonyms: Quercus marilandica, blackjack, blackjack oak

   type of:

   scrub oak

   any of various chiefly American small shrubby oaks often a dominant form on thin dry soils sometimes forming dense thickets
2. noun

   small to medium deciduous oak of east central North America; leaves have sharply pointed lobes
   synonyms: Quercus ellipsoidalis, northern pin oak

   type of:

   oak, oak tree

   a deciduous tree of the genus Quercus; has acorns and lobed leaves