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Castor beans or the castor oil plant contain ricin which is toxic to dogs. It can be fatal depending on how much of the plant is ingested. The beans of the plant have a higher concentration of ricin and if chewed instead of swallowed whole will cause increased toxicity levels. [28]
Castor beans. Castor Beans are a common plant for gardens throughout the South. ... which is common to many yards in Mississippi and the South and is a native plant, is poisonous to dogs.
The toxin provides the castor oil plant with some degree of natural protection from insect pests such as aphids. Ricin has been investigated for its potential use as an insecticide. [25] Commercially available cold-pressed castor oil is not toxic to humans in normal doses, whether internal or external. [26]
Ricin (/ ˈ r aɪ s ɪ n / RY-sin) is a lectin (a carbohydrate-binding protein) and a highly potent toxin produced in the seeds of the castor oil plant, Ricinus communis. The median lethal dose (LD 50) of ricin for mice is around 22 micrograms per kilogram of body weight via intraperitoneal injection. Oral exposure to ricin is far less toxic.
Here are some of the most common plants that are toxic to dogs, according to Dr Wismer: Sago Palm. This handsome prehistoric-looking palm is the most dangerous houseplant on the list for dogs, ...
Toxic flowers and plants A lot of popular fall houseplants, like chrysanthemums, can be harmful or even poisonous to pets when ingested – check before you buy!
According to the 2007 edition of the Guinness Book of World Records, the castor oil plant is the most poisonous in the world, though its cousin abrin, found in the seeds of the jequirity plant, is arguably more lethal. Castor oil, long used as a laxative, muscle rub, and in cosmetics, is made from the seeds, but the ricin protein is denatured ...
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