Liquidambar, commonly called sweetgum (star gum in the UK), gum, redgum, satin-walnut, or American storax, is the only genus in the flowering plant family Altingiaceae and has 15 species. They were formerly often treated in Hamamelidaceae. They are native to Southeast and east Asia, western Mediterranean and eastern North America. They are decorative deciduous trees that are used in the wood industry and for ornamental purposes.