Drainage basin: The area drained by a river and its tributaries. A drainage basin is considered to be an open system because water can be added or lost from a drainage basin. Source: The beginning of a river. A river may have multiple sources.
Milk thistle (Silybum marianum) is a thorny plant presenting decorative leaves with a white pattern of veins and purple flower heads. The plant originates from mountains of the Mediterranean region, where it forms scrub on a rocky base.
Its flavonoid content known as silymarin is actually more popular than the milk thistle plant itself. The seeds of the milk thistle contain the silymarin flavonoid and have been widely believed as the main biologically potent component that can provide gallstones natural cure. Gallbladder disorder is due to the gallstones formed throughout the years and has remained undetected.