para rubber tree: deciduous tree of the Amazon and Orinoco Rivers having leathery leaves and fragrant yellow-white flowers; it yields a milky juice that is the chief source of commercial rubber
angiospermous tree: any tree having seeds and ovules contained in the ovary
jacob: (Old Testament) son of Isaac; brother of Esau; father of the twelve patriarchs of Israel; Jacob wrestled with God and forced God to bless him, so God gave Jacob the new name of Israel (meaning `one who has been strong against God')