White Birch Reveals Poison Ivy

white birch with poison ivy vine

Here is a case where poison ivy has climbed a white birch tree, which makes the hairy roots really stand out. 

This is not something we have seen often, PI climbing a white birch.

Note that there are branches sticking out from the main vine that have no root hairs or other marking that suggest poison ivy. 

The hairy roots are a key way to identify poison ivy when it climbs trees, walls, fences, and anything that doesn't move.