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"Poisonous" does not mean deadly. Some manifestations of toxicity are subtle. The dose, as always, determines if a plant is safe source of nutrients or a toxic hazard.

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BRIEF: What is the most poisonous substance in Argemone mexicana?

In your opinion, what is the most poison sustance in ARGEMONE MEXICANA?


The isoquinoline alkaloids berberine, protopine, etc. are the most toxic things in this plant.