Poison Ivy Exposed in Winter

When the leaves fall, many trees, fences, and buildings are revealed to be covered with masses of poison ivy vines. See how this very aggressive vine covers not only the poor tree, but also layers of other poison ivy, all scrambling upward in a nasty competition.

Note that the older, thicker vines have reddish hairy roots, while the younger ones don't. Also see how many branches grow sideways from the climbing vines, looking for maximum exposure to sun.

Removing poison ivy from a disaster like this must be done with great care, as most of the plant oil remains in the vines during winter, and cutting them release copious amounts of it.

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