Oil palm

Oil palm is the  name of different species of palm trees, which are mainly used to produce vegetable oil:

 The genus Elaeis contains two species, which are used to produce palm oil
 The Coconut palm (Cocos nucifera) is used to produce coconut oil
 The Maripa palm (Attalea maripa) produces edible fruit; seeds of these palms have been found at sites dating to 9.000 BP.