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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 part of these plants?

What are the poisonus part of the plants listed below 1.Abrus 2.Helleborus 3.Robinia 4.Toxicodendron


All of all of them, some parts more than others. Seeds of abrus most poisonous part of most poisonous plant on this list.