| Poison Houseplants | | HOUSE PLANTS | | |
| PLANT | TOXIC PART | SYMPTOMS |
| Caladium | All plant parts | Same as Dieffenbachia |
| Christmas rose | Seed and young plants | Gastric, nervous system, depression |
| Crown-of-thorns | Milky sap | Gastric |
| Dieffenbachia (Dumb Cane), Elephant Ear | All parts | Intense burning and irritation of the mouth and tongue. Death can occur if base of the tongue swells enough to block the air passage of the throat. |
| Hyacinth, Narcissus, Daffodil | Bulbs | Nausea, vomiting, diarrhea. May be fatal. |
| Oleander | Leaves, branches | Extremely poisonous. Affects the heart, produces severe digestive upset and has caused death. |
| Rosary Pea, Castor Bean | Seeds | Fatal. A single Rosary Pea seed has caused death. One or two Castor Bean seeds are near the lethal dose for adults. |
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