Detailed altitudinal zones of Alps mountains
<a href="//commons.wikimedia.org/wiki/User:Pethrus" title="User:Pethrus">Pethrus</a>
CC BY-SA 4.0
<p><span class="int-own-work" lang="en">Own work</span>, based on data from :
</p>
<ul><li><i>Fleurs de montagne</i>, Jean-Marie Polese, Artémis Editions 2008</li>
<li><i>Fleurs des Alpes, balade d'un botaniste des plaines aux sommets</i>, François Couplan, Nathan, 2005</li></ul>