Oregano (Rigani in Greek), is perhaps the most popular spice used in Greek cooking.
Oregano is an herb composed of the fresh or dried leaves of the oregano plant. The plant has tiny leaves that lend a pungent aroma and strong flavor to a variety of savory foods. When in bloom, the plant sports pink or purple flowers, which are also edible. As an herb, it is gluten-free and suitable for vegan and paleo diets.