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My highly trained skills of observation tell me that this is not a plant but an arthropod. I have moved it to that category for you. If you think I am mistaken, I will be happy to discuss the point over dinner and wine some time. :-)
I think this is a Phyllophaga sp. or May/June bug. They call these Abejones de Mayo here in Costa Rica.
Lat: 35.90, Long: -86.88
Spotted on Jul 25, 2014 Submitted on Jul 26, 2014