Sumac Trees

Sumac Bushes/Trees

mershon_teri added on August 9, 2017 | Answered

I live in SE Oklahoma and Sumac bushes are overly abundant. They are very pretty, and I am wondering if they are poisonous; either to dogs/cats or humans?

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Certified GKH Gardening Expert
Answered on August 10, 2017

The ASPCA maintains a database of poisonous plants. Here is the link:

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Answered on August 9, 2017

There are several varieties of sumac with "poison sumac", Toxicodendron vernix, capable of causing poison ivy-type rash. However, it is not known to inhabit Oklahoma and is only found where it is very wet, like a swamp. Check with your vet about dogs/cats. The following website has pictures of the other, more common, sumacs, staghorn and winged. Knowing which variety you have will help answer your question.

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