Birch Betula generally refers to about 100 kinds of trees and shrubs commonly known. Single leaf edge serrated or lobed shape, the fruit is a small samara. Birch bark smooth, resinous, white or variegated, with horizontal lenticels go, usually Tasikmalaya flaking into thin slices, thick bark of the trunk with old groove, cracking into irregular fragments. Saplings are short and slender branches on the move, was a narrow pyramid crown. Birch wood light brown to reddish brown, used as flooring, furniture, paper pulp, interior materials, travel equipment, plywood. Hardy, fast-growing, relatively immune to pests, for reforestation, erosion control, protective cover or for conservation of trees. It requires more moist, fertile loam or sandy soil, planting and grafting. Throughout the Northern Hemisphere cold regions.