<a href="//commons.wikimedia.org/wiki/Pilosocereus_leucocephalus" title="Pilosocereus leucocephalus">Pilosocereus leucocephalus</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/37996593020@N01">Jef Poskanzer</a> from Berkeley, CA, USA
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/37996593020@N01/148385994/">cactus flower</a>