Dumb Cane

A common houseplant found worldwide, Dumb Cane (Dieffenbachia spp.) appears harmless but contains needle-like calcium oxalate crystals (raphides) that cause intense pain, swelling, and even temporary loss of speech if chewed. Severe reactions can block airways, and contact with the sap followed by touching the eyes may result in irritation, corneal abrasions, or permanent eye damage. This makes the plant especially risky for households with pets and children.

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