Hairy and Scary!

hairy poison ivy vine

All climbing vines have some way to hold onto the surface they climb on. But no other vine in its territory has the distinct hairy vines that poison ivy has.

Even the tiniest climbing poison ivy vines have hairs if you look closely enough. But when the vine gets about a half inch thick, the hair becomes a serious beard.

Oddly, even with all those hairs trying to grab the tree, it is fairly easy to pull a vine off of a tree or a wall, though doing so will unleash enough of the urushiol oil to cause a rash. Cutting the vine with a saw will unleash much, much more, but grabbing a hairy poison ivy vine is never a good idea.