Oregano, (Origanum vulgare), also called origanum or wild marjoram, aromatic perennial herb of the mint family known for its flavourful dried leaves and flowering tops.Oregano is a very flavorful herb that is often used in Italian, Greek, and Spanish cooking. Oregano has been gaining popularity as a natural remedy, though its use as a health-boosting herb is centuries old. Modern science confirms the reasons for this: it contains high amounts of omega-3s, iron, manganese, vitamin K, and antioxidants.Oregano essential oil is well known in natural health communities for its antibacterial properties, and it is even being studied by the mainstream medical community for its potential health benefits.