Cros-section of a Dioscorea alata tuber, Marché du Chaudron, Saint-Denis de La Réunion
<a href="//commons.wikimedia.org/wiki/User:R%C3%A9mi_Tournebize" title="User:Rémi Tournebize">Rémi Tournebize</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>