It can be made from Castor Beans (Ricinus communis), which grow wild.
The plants are also grown as an ornamental, or at least they used to be. I remember as a kid in SoCal in the 50s hearing public-service ads about not eating the pretty berries. Just a couple could kill you.
28 posted on 09/20/2020 8:24:14 PM PDT by hanamizu