Zanthoxylum bungeanum
Not actually pepper — produces unique "numbing" sensation (hydroxy-alpha-sanshool activates touch receptors). TCM warms the middle jiao and kills parasites. For digestive coldness, abdominal pain, and roundworms. Key in Sichuan cuisine.
GI ulcers (irritant).
None significant at culinary doses.
Tingling/numbing sensation (characteristic). Safe as food.
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