Common names
Dumbcane, Giant Dumbcane, Spotted Dumbcane, Leopard Lily

Botanical name
Dieffenbachia sp.

Poisonous parts
All parts

Toxins
Calcium oxalate

Notes
The distinctive leaf pattern of the very popular Dieffenbachia sp. is seen in many homes. Painful and immediate swelling of the mouth and throat occurs after chewing on dumbcane. Speech impediment can occur, sometimes lasting for several days. Avoid eye contact with the juices which can result in intense pain and swelling.

This plant is useful for purifying our indoor air.

Toxicity Information
Dieffenbachia amoena | Dieffenbachia bausei
Dieffenbachia maculata | Dieffenbachia seguine

Courtesy of:
Derek B. Munro
Biological Resources Program
Eastern Cereal and Oilseed Research Centre
Research Branch Agriculture and Agri-Food Canada
Ottawa, Ontario K1A 0C6