- scrub oak - any of various chiefly American small shrubby oaks often a dominant form on thin dry soils sometimes forming dense thickets
--1 is a kind of oak, oak tree
--1 has particulars:bear oak, Quercus ilicifolia; blackjack oak, blackjack, jack oak, Quercus marilandica; myrtle oak, seaside scrub oak, Quercus myrtifolia