Mexican Poppy (<i><a href="//commons.wikimedia.org/wiki/Argemone_mexicana" title="Argemone mexicana">Argemone mexicana</a></i>)fruit.
Photo by Forest and Kim Starr.
<a rel="nofollow" class="external autonumber" href="http://www.hear.org/starr/hiplants/images/600max/html/starr_030523_0139_argemone_mexicana.htm">[1]</a>