<i>Robinia pseudoacacia</i> cross section
<ul><li><a href="//commons.wikimedia.org/wiki/File:Robinia_sezione.jpg" title="File:Robinia sezione.jpg">Robinia_sezione.jpg</a>: <a href="//commons.wikimedia.org/wiki/User:Luigi_Chiesa" title="User:Luigi Chiesa">Luigi Chiesa</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Amada44" title="User:Amada44">Amada44</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Amada44" title="User talk:Amada44"><span class="signature-talk">talk</span></a>)</li></ul>
CC BY 3.0
<ul><li><a href="//commons.wikimedia.org/wiki/File:Robinia_sezione.jpg" title="File:Robinia sezione.jpg">Robinia_sezione.jpg</a></li></ul>