Poison Ivy, Eastern Poison Ivy (Toxicodendron radicans)

Piedmont, MO(Zone 6a)

Poison Ivy, Eastern Poison Ivy
Toxicodendron radicans


Here is an example of a mature plant...they climb way up the trees and drop seeds. I have seen vines 4 and 5 inches in diameter.

Thumbnail by Toxicodendron
San Antonio, TX(Zone 8b)

Susan, I have never seen a poison ivy vine with a diameter that large.

So.App.Mtns., United States(Zone 5b)

We have them here like that, although I don't see many over about 3" in diameter.

There was one about 2" in diameter in a dying cedar tree here when we bought this house in a cold January. I cut into it with a chain saw that year, before it leafed out. I've NEVER had such a bad case of poison ivy... the chain saw splattered sap everywhere!

Piedmont, MO(Zone 6a)

Here is another photo of the same vine, nearer to the ground. I remember it was huge, I think it was nearly 5 inches in diameter. For ticks, chiggers, mosquitoes, flies, and poison ivy, come to beautiful Missouri!

Thumbnail by Toxicodendron
Northport, ME(Zone 5b)

This is one plant that has never survived living on my property. I water them with Round-Up.

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