Elaeis oleifera is a type of palm tree that is known for producing oil-rich fruits. This tree is native to South America and is also known as the American oil palm or the pure oil palm. The tree's oil is used for various purposes, including cooking, soap production, biodiesel fuel, and cosmetics. Synonyms for Elaeis oleifera include the African oil palm (Elaeis guineensis), the Brazilian oil palm (Elaeis oleifera var. costina), the Colombian oil palm (Elaeis oleifera var. colombiana), and the Gulf oil palm (Elaeis oleifera var. hookeri). While these trees may differ slightly in appearance and region of origin, they all share similar characteristics and uses for their oil-rich fruits.