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Are buffalo bur berries poisonous?
Like many plants of the nightshade, buffalo bur is highly toxic. Its toxicity is concentrated on the leaves and fruits. The toxic component is solanine, which can cause convulsions and death if taken in large amounts. In soils with high nitrogen content, buffalo bur will also accumulate excess nitrate, causing nitrate poisoning. Because the stems and leaves of the buffalo bur are covered with sharp thorns, the chance of people swallowing them is very low. However, the possibility of being stabbed due to contact is very high, so please protect it when going to the field, and wear gloves when weeding.
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