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Layers of Poison Ivy Vines

This poor tree has many layers of poison ivy climbing up it. There is the one-inch thick vine to the right, the half inch vine in the middle, and then the very hairy vine on the left, plus lots of little stick-like smaller vines.

It is not obvious why one vine would be very hairy and the others not, but this is just one more example where poison ivy presents lots of different looks. 

Remember that recognizing poison ivy, poison oak, and poison sumac will keep you from becoming part of the Skin Rash Hall of Fame.