Sassafras is a genus of three extant and one extinct species of deciduous trees in the family Lauraceae, native to eastern North America and eastern Asia.Sassafras trees grow from 918 m (3059 ft) tall and spreading 7.512 m (2539 ft). The trunk grows 70150 cm (2859 in) in diameter, with many slender branches, and smooth, orange-brown bark. The branching is sympodial. The bark of the mature trunk is thick, red-brown, and deeply furrowed. The wood is light, hard, and sometimes brittle. All parts of the plants are very fragrant.