C. bicolor contains calcium oxalate crystals, making all parts of the plant poisonous to humans, livestock, and pets. Sap coming in contact with the skin may cause skin irritation. Ingestion may cause burning and swelling of the lips, mouth, and tongue, as well as nausea, vomiting, and diarrhea.[4][5] If a pet consumes caladium, in addition to vomiting, etc., the symptoms include drooling, pawing at mouth or face, and decreased appetite.[6]
Flower
References
^Mag. Encycl. 4(16):464. [22 Dec 1800-21 Jan] 1801 (Descr. pl. nouv. ad t. 30. 1801 Mar)