Habenaria quinqueseta.  Family Orchidaceae.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/10239508@N07">Malcolm Manners</a> from Lakeland FL, USA
CC BY 2.0
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/mmmavocado/48778758826/">Michaux's Orchid</a>