Hey Bee.....isn't that where ricin comes from????
I think yes.
http://en.wikipedia.org/wiki/Castor_oil_plant
The pericarp of castor bean showed central nervous system effects in mice at low doses. At high doses mice quickly died.[10] A water extract of the root bark showed analgesic activity in rats.[10] Antihistamine and anti-inflammatory properties were found in ethanolic extract of Ricinus communis root bark.[11]