This is the castor bean plant (Ricinus communis), which is the source of castor oil. Ricin, a highly toxic enzyme found in its seeds is deactivated through a heating process. Ingesting raw Plant Fibers (Cotton & Fiber Crops) Textile Exchange Balcony planting: best plants for a balcony & tips Plantura Ten years ago, Kez joined us new to the industry., We sent him to college, helped him develop his skills, and gave him the space to grow., Today he is a key part of our Leeds operation, skilled,