Freakish trunk of an oak (<i>Quercus</i>). Location, <a href="https://nl.wikipedia.org/wiki/Het_Katlijker_Schar" class="extiw" title="nl:Het Katlijker Schar">Het Katlijker Schar</a>.
<a href="//commons.wikimedia.org/wiki/User:Famberhorst" title="User:Famberhorst">Dominicus Johannes Bergsma</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>