Callistephus chinensis/zomeraster
<a href="//commons.wikimedia.org/wiki/User:Rob_Hille" title="User:Rob Hille">Rob Hille</a>
10 September 2007, 15:44:36 (according to <a href="https://en.wikipedia.org/wiki/Exchangeable_image_file_format" class="extiw" title="en:Exchangeable image file format">Exif</a> data)
<span class="int-own-work" lang="en">Own work</span>