Original: The castor oil plant, Ricinus communis, is a species of flowering plant in the spurge family, Euphorbiaceae. It belongs to a monotypic genus, Ricinus, and subtribe, Ricininae.
Simplified: The castor oil plant (Ricinus communis), is a plant species of the Euphorbiaceae, the sole member of the genus Ricinus and of the subtribe Ricininae.