Coriandrum sativum, or Coriander, is an upright herb that grows up to 50 cm tall. It has feathery green leaves but is mainly grown for its seeds, which are small, round, and ribbed, about 3–5 mm in size. The seeds start green with a strong smell and turn tan or golden-brown when ripe. Ripe seeds have a sweet, nutty, and citrus-like smell because of a chemical called linalool. Coriander is native to the Mediterranean and Near East and has been used for over 8,000 years. Today, it grows all over the world, and India is the biggest producer.