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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.

Scientific Name: Arisaema spp.

Common Name: Jack in the Pulpit

Species Most Often Affected: humans

Poisonous Parts: all

Primary Poisons: oxalate

Questions possibly pertaining to Arisaema spp.:

Could you help me find some information on plants poisonous to dogs?

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