Poppy seed is the dried seed of Papaver somniferum, an erect annual herb, 30-150 cm long with 0.5-1.5 cm thick stem. Stem is glabrous with thick waxy coating. Leaves are numerous, alternate, spreading horizontally, 15-25 cm long. Flowers are few, solitary, on a 10-15 cm long peduncle. Fruit is a capsule with waxy coating. Seeds are numerous, very small, white grey with an oily endosperm. Poppy is a self pollinated plant. The seed is the spice. Poppy seed (Khas Khas) is used as food and as a source of fatty oil. It is widely used for culinary purposes. Because of its highly nutritive nature it is used in breads, cakes, cookies, pastries, curries, sweets and confectionary. Its seeds are demulcent and are used against constipation. The capsules are used as a sedative against irritant coughing and sleeplessness in the form syrup or extract.