Plants take a hike as temperatures rise

Plants are flowering at higher elevations in Arizona's Santa Catalina Mountains as summer temperatures rise, according to new research from The University of Arizona in Tucson.

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<p><a href="http://www.physorg.com/news153482329.html">Plants take a hike as temperatures rise</a></p> <p>Plants are flowering at higher elevations in Arizona's Santa Catalina Mountains as summer temperatures rise, according to new research from The University of Arizona in Tucson.</p>