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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.
Ricinus communis, the castor bean [1] or castor oil plant, [2] is a species of perennial flowering plant in the spurge family, Euphorbiaceae. It is the sole species in the monotypic genus , Ricinus , and subtribe , Ricininae .
darnel, poison ryegrass Poaceae: The seeds and seed heads of this common garden weed may contain the alkaloids temuline and loliine. Some experts also point to the fungus ergot or fungi of the genus Endoconidium, both of which grow on the seed heads of rye grasses, as an additional source of toxicity. [157] Lupinus spp. lupin, lupine Fabaceae
Never chew on jewelry made from seeds, beans, or grasses from plants. Recognize plants that may cause a rash, such as poison ivy, poison oak, or bull nettle. Do not make toys or whistles from ...
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Here's what you need to know about some of the more common plants to stay away from, like poison hemlock, poison ivy and poison oak. ... like poison hemlock, poison ivy and poison oak.
Castor oil is a vegetable oil pressed from castor beans, the seeds of the plant Ricinus communis. [1] The seeds are 40 to 60 percent oil. [2] It is a colourless or pale yellow liquid with a distinct taste and odor. Its boiling point is 313 °C (595 °F) and its density is 0.961 g/cm 3. [3]
Children, being smaller than adults, are more susceptible to poisoning by plants and seeds. [64] A deadly poison, ricin, comes from seeds of the castor bean. Reported lethal doses are anywhere from two to eight seeds, [65] [66] though only a few deaths have been reported when castor beans have been ingested by animals. [67]