Tree crop refers to any crop produced by a tree including: Timber or lumber, wood processed into beams and planks Tree fruit, fruit borne on various flowering trees Tree nut, a tree fruit composed of an inedible hard shell and an edible seed See also Tree farm, a privately owned forest managed for timber production Tree plantation, a large-scale estate meant for farming tree products Crop tree release, selecting particularly desirable trees in a young stand and removing or killing other trees Agroforestry, system in which trees or shrubs are grown around or among crops Silviculture, the care of forests Arboriculture, the care of individual, typically ornamental, trees