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: blackjack oak, blackjack, Quercus marilandica
- Small to medium deciduous oak of east central North America; leaves have sharply pointed lobes.
- synonyms: northern pin oak, Quercus ellipsoidalis
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). jack oak. Retrieved September 21, 2026, from http://smartdefine.org/jack_oak/definitions/1238639 |
| Chicago | WordNet. 2010. "jack oak" http://smartdefine.org/jack_oak/definitions/1238639 (accessed September 21, 2026). |
| Harvard | WordNet 2010, jack oak, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/jack_oak/definitions/1238639>. |
| MLA | WordNet. "jack oak" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/jack_oak/definitions/1238639> |