May be fatal. A single rosary pea seed or castor bean may be fatal. Severe digestive upsets. A single leaf can kill a child. Intense burning and irritation of the tongue and mouth.
Death can occur if the base of the tongue swells blocking air passage.
Stomach pains, labored breathing and, possibly, coma. Although previously considered a poisonous plant, recent studies have shown that the poinsettia is nontoxic . Ingestion of small amounts may result in mild gastrointestinal irritation. Fleshy underground portions. Severe digestive upset.