This is a castor bean. They grow to be very large and come in various shadings of color, according to the color of the bean planted. This plant is the source of castor oil. Be careful with it: the beans are poisonous! They contain
ricin, a
poison, which is also present in lower concentrations throughout the plant.
The toxicity of raw castor beans is well-known, and reports of actual poisoning are relatively rare. Children could conceivably die from as few as three beans; adults may require eight or more. Don't let your pets eat it, either.
It is also known as "palm of christ" or "palma christi".