Sassafras is a genus of three extant and one extinct species of deciduoustrees in the family Lauraceae, native to eastern North America and eastern Asia.[2][3][4] The genus is distinguished by its aromatic properties, which have made the tree useful to humans.
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^Wolfe, Jack A. & Wehr, Wesley C. 1987. The sassafras is an ornamental tree. "Middle Eocene Dicotyledonous Plants from Republic, Northeastern Washington". United States Geological Survey Bulletin1597:13