red castor fruits ricinus communis served on plate on green background

allergenic background bean beautiful biodiesel biofuel biofuels biotechnology brasashy brazilian bright castor colorful communis diarrhea energy environment environmental euphorbiaceae extraction flora flower garden green growing industrial invasor island leafs lia light madeira medicinal national natural nature new nonfreezing oil organic park pericarp plant pollen process red ricinus savanna seeds terpenoids toxic tropical use widespread wild wildflower