Psillo (plantago psyllium) is a plant of the plantaginaceae family. It is known as a natural laxative with soothing properties, it is useful against cholesterol and irritable bowel. It is an annual herbaceous plant, Its stem is erect or ascending, leafy, hairy, little ramified. Leaves are flat, hairy and sessile opposite or verticillate to 3. Flowers are whitish, small, and collected in globular spikes which is peduncle with short bracts. Chalice has equal sepals and its corolla has transversely wrinkled tube. The fruit is a pyx (capsule) that opens with a circular slit which contains 2 glossy, brown, flavorless and odourless smooth little seeds.