Oregano or pot marjoram (Origanum vulgare) is a species of Origanum, native to Europe, the Meiterranean region and southern and central Asia. It is a perennial herb, growing to 20-80 cm tall, with opposite leaves 1-4 cm long. The flowers are purple, 3-4 mm long, produced in erect spikes. Its name derives from the Greek origanon ὀρίγανον oros ὄρος "mountain" + the verb ganousthai γανοῦσθαι "delight in". Oregano (seed) is also known as Ajwain (اجوائن) in Urdu.