8 Plants That Are Poisonous to Cats and Dogs - Part 6 Castor Bean

Castor Bean

Ricinus communis (commonly known as the castor bean) contains ricin, which can be highly toxic.  Ricin causes multiple organ failure.  Ricin is found throughout the plant, but the highest levels are found in the seeds.  The seed coat must be damaged to release the toxins, so animals who swallow the seeds whole may not get sick.  the mortality rate of dogs is about 9%.  These beans are also commonly used in many rustic-type ornaments and jewelry.