Which specific plant part from daffodils, tulips, and hyacinths is noted for containing concentrated toxins?

Answer

The bulb

The root structures, specifically the bulbs of daffodils, tulips, and hyacinths, contain concentrated toxins that pose a severe hazard if dug up or chewed by a cat.

Which specific plant part from daffodils, tulips, and hyacinths is noted for containing concentrated toxins?
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