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Hard Poisonous Plants

What allergenic compound from tulips is linked to the skin condition called tulip fingers?

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Intermediate Poisonous Plants

What compound in St John's wort can cause photosensitivity in grazing animals?

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Intermediate Poisonous Plants

What toxic alkaloid is especially associated with tree tobacco, Nicotiana glauca?

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Intermediate Poisonous Plants

What is the common name of Aethusa cynapium, a poisonous parsley relative?

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Hard Poisonous Plants

What toxin gives hemlock water-dropwort its deadly poisonous effect?

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