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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. The evolution of castor and its relation to other species are currently being studied using modern genetic tools. [3]
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.
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.
The seeds of the castor oil plant Ricinus communis contain the highly toxic carbohydrate-binding protein ricin. [5] A milky latex is a characteristic of the subfamilies Euphorbioideae and Crotonoideae, and the latex of the rubber tree Hevea brasiliensis is the primary source of natural rubber.
If you’re unfamiliar, castor oil is a vegetable oil that’s extracted from the seeds of the castor bean plant, a type of shrub found in Africa, South America, and India.
Caruncle Carunculate seeds of Ricinus communis (Castor beans) The particular elaiosome in the spurge family Euphorbiaceae is called caruncle (Latin caruncula "wart"). Seeds that have caruncles are carunculate; seeds that do not have caruncles are ecarunculate.
Ricinus communis: Castor bean Also known as palma Christi, fatal even in small amounts [3] [16] Robinia pseudoacacia: Black locust Also known as false acacia [3] [4] Romulea: Known poisonous species include Romulea longifolia (Guildford grass) and R. rosea (onion grass or onion weed) [10] [22] Rudbeckia laciniata: Goldenglow, coneflower, or ...
Colorized scanning electron microscope image of pollen grains from a variety of common plants: sunflower (Helianthus annuus), morning glory (Ipomoea purpurea), prairie hollyhock (Sidalcea malviflora), oriental lily (Lilium auratum), evening primrose (Oenothera fruticosa), and castor bean (Ricinus communis).