Nutmeg is the seed, or the ground spice derived from that seed, of several tree species of the genus Myristica; fragrant nutmeg or true nutmeg is a dark-leaved evergreen tree cultivated for two spices derived from its fruit: nutmeg, from its seed, and mace, from the seed covering.

It is a fruit of Myristica fragrans, it has a spicy sweet facet with earthy and pungent base notes, and is used to provide an oriental spiciness that is subtler than the usual cinnamon-clove-vanilla bouquet of orientals, thus perfect for masculine and lighter woody fragrances. Notable example is Fahrenheit by Dior and Vetiver Sport by Guerlain.