<p><i>Potamogeton polygonifolius</i>, flowers
Author : Augustin Roche
</p>
Source : <a rel="nofollow" class="external autonumber" href="http://www.herbarium.123.fr/indexs/plante.php?num_plante=373">[1]</a>
No machine-readable author provided. <a href="//commons.wikimedia.org/wiki/User:Aroche" title="User:Aroche">Aroche</a> assumed (based on copyright claims).
CC BY 2.5
No machine-readable source provided. Own work assumed (based on copyright claims).