green seeds castor oil plant, vegetal from where extracts the known laxative castor oil, used

green seeds castor oil plant vegetal extracts laxative used produce biodiesel ricinus communis commonly medical agriculture background bean bio blooming botany castor castor-oil-plant castorbean closeup communis diesel eco eco-friendly ecofriendly energy euphorbiaceae exterior farm floral fresh friendly fruit fuel garden green harvest herb herbal leaf medical medicinal medicine natural nature oil oilseed organic pharmaceutical plant ricin ricine ricino ricinus seed seeds sky toxic tree tropical