Oregano is a flowering plant in the mint family This little plant needs to be in your kitchen and medicine cabinet as it's a delicious healing agent Oregano is the dried leaves of the herbs Origanum spp or Lippia spp (Mexican) Both varieties have traditionally been harvested in the wild Oregano is a familiar herb that many people know from dishes such as pizza and pasta sauce Oregano aromatic perennial herb of the mint family (Lamiaceae) known for its flavorful dried leaves and flowering tops.