A species widepread in the Neotropics.  Also known as the Mayan Water Lily.  Photo from Lago Nicaragua near Granada.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/92252798@N07">Dick Culbert</a> from Gibsons, B.C., Canada
CC BY 2.0
<p><a rel="nofollow" class="external text" href="https://www.flickr.com/photos/92252798@N07/9679365589/">Nymphaea ampla, the Lirio de Agua</a>
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<ul><li>Uploaded by <a href="//commons.wikimedia.org/wiki/User:Uleli" title="User:Uleli">uleli</a></li></ul>