Coriander seeds are the dried berries of the coriander herb, but have little similarity in taste to fresh coriander. The seeds can be bought whole or in powdered form. Ground coriander is a main component of many different spice mixtures including garam masala and harissa. It's also good added to savoury pickles, chutneys or casseroles and can be used in cakes and other baked goodies. Crushed whole coriander seeds are delicious for flavouring homemade burgers. Coriander seeds have a fragrant flavour that is reminiscent of both citrus peel and sage. They are used in an array of cuisines around the world. The use of coriander can be traced to ancient times making it one of the world's oldest spices. It is native to the Mediterranean and Middle Eastern regions and has been used in Asian countries for thousands of years. In its seed form it was used as a spice in both Greek and Roman cultures, the latter also used ground coriander seeds as a preserve for meats. The early physicians, including Hippocrates, used coriander for its medicinal properties, including as an aromatic stimulant.