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From: Montgomery, TX
Region: Southwest
Topic: Poisonous Plants
Title: Identity of poisonous thorn bush in Montgomery Texas
Answered by: Nan Hampton
If you are asking what bush in Montgomery, Texas has poisonous thorns, then I would have to say that there aren't any native shrubs that have poisonous thorns. We recently answered a couple of questions on the subject of plants with poisonous thorns. Here are links to questions #7663 and to #7716. Also, you can search the Botanical Dermatology Database (BoDD) for plants with poisonous thorns. If you experienced swelling and soreness after being pierced by a thorn from a shrub, it is likely due to the fact that a puncture wound can become infected from bacteria introduced by the thorn. Also, there could be a bit of thorn still within the wound.
There are shrubs/trees that are poisonous if eaten (fruit, leaves, flowers) that also have thorns. Here are a few:
Robinia pseudoacacia (Black locust)
Aralia spinosa (Devil's walkingstick)
Poncirus trifoliata (Trifoliate orange)
If you are experiencing discomfort from contact with a thorn, you should see a doctor.
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