<p><i><a href="//commons.wikimedia.org/wiki/Chloraea_longipetala" title="Chloraea longipetala">Chloraea longipetala</a></i> Lindl.
20081129.22
coastal Chile, between Pichilemu and Concepcion
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Found these just growing in a dry spot along the road.  I'm basing the ID just on photos on the web.  This one seems distinctive since there are no veins or other markings on the outer three tepals.
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/7147684@N03">Jason Hollinger</a>
CC BY 2.0
<p><a rel="nofollow" class="external text" href="https://www.flickr.com/photos/7147684@N03/3436578541/">Long-Petaled Chloraea</a>
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<ul><li>Uploaded by <a href="//commons.wikimedia.org/wiki/User:Orchi" title="User:Orchi">Orchi</a></li></ul>