Large plant (Ricinus communis) of the spurge family, probably native to Africa and naturalized throughout the tropics. It is grown commercially for the pharmaceutical and industrial uses of its oil and for use in landscape gardening because of its handsome, giant, fanlike leaves. The bristly, spined, bronze-to-red clusters of fruits are attractive but are often removed before they mature because of the poison concentrated in their mottled, beanlike seeds. There are hundreds of natural forms and many horticultural varieties of this species.
Castor-oil plant (Ricinus communis).—Kenneth and Brenda Formanek/EB Inc.
This entry comes from Encyclopædia Britannica Concise.
For the full entry on castor-oil plant, visit Britannica.com.
Seen & Heard
What made you look up castor-oil plant? Please tell us what you were reading, watching or discussing that led you here.