a coniferous evergreen timber tree and only species of the genus Cryptomeria of the family Cupressaceae (sometimes classified in the so-called deciduous cypress family Taxodiaceae), native to eastern Asia. The tree may attain 45 m (150 feet) or more in height and a circumference of 4.5 to 7.5 m (15 to 25 feet). It is pyramidal, with dense, spreading branches in whorls about the trunk.

The Japanese cedar often is used in eastern Asia for reforestation and for garden and avenue plantings. The fragrant, reddish brown wood is used to build ships, houses, bridges, furniture, and vats and for ornamental carving. Incense is made from the leaves.