Flower head of <i>Crassula perfoliata</i> var. <i>minor</i>,  formerly <i>Crassula falcata</i>, of South Africa.
<ul><li>at the <a href="//commons.wikimedia.org/wiki/San_Diego_Zoo" title="San Diego Zoo">San Diego Zoo</a>, California, USA.</li>
<li>Identified by sign.</li></ul>
<a href="//commons.wikimedia.org/wiki/User:Stickpen" title="User:Stickpen">Stickpen</a>
<span class="int-own-work" lang="en">Own work</span>