Common name(S) Elephant's ear (preferable genus name is Colocasia).
Toxin(s) Calcium oxalate and possibly other irritant proteins.
Toxic part(S) Leaves and stems.
Signs Oral pain, edema of the mouth and oropharynx, rarely swelling will interfere with swallowing or breathing.
Treatment Usually none necessary. The irritant nature of the toxin usully prevents serious ingestion in animals.
Treatment of the oral pain and swelling is symptomatic.
Rarely the swelling may require that the airway be secured.