Beautifully unrolling leaf of a <a href="https://en.wikipedia.org/wiki/Swamp_fern" class="extiw" title="en:Swamp fern"> <i> palustris </i></a> on the waterfront. The background is the water. Location, Jonker valley garden reserve.
<a href="//commons.wikimedia.org/wiki/User:Famberhorst" title="User:Famberhorst">Dominicus Johannes Bergsma</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>