Blackjack Oak <i><a href="//commons.wikimedia.org/wiki/Quercus_marilandica" title="Quercus marilandica">Quercus marilandica</a></i>. Forest Road, Shawnee National Forest, Illinois, USA.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/50352333@N06">Jason Sturner</a>
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/50352333@N06/4646497894/">6-16-2005 Forest Road - Blackjack Oak (Quercus marilandica)</a>