<i><a href="//commons.wikimedia.org/wiki/Cypripedium_calceolus" title="Cypripedium calceolus">Cypripedium calceolus</a></i>, drawing
<a href="//commons.wikimedia.org/wiki/User:BerndH" title="User:BerndH">Bernd Haynold</a>
CC BY 2.5
selbst gezeichnet - own picture