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From: Conroe, TX
Region: Southwest
Topic: Invasive Plants, Non-Natives, Plant Identification
Title: Identity of rubbery-looking tree with long green thorns
Answered by: Nan Hampton
This sound like Poncirus trifoliata [syn. Citrus trifoliata] (trifoliate orange). It is native to China and Korea and is considered invasive in North America. Here are more photos and information.
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