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.
Milk thistle represents another natural compound that provides a powerful effect to prevent and treat chronic diseases. Alternative health experts recommend supplementing with 250 mg of a standardized milk thistle extract each day to fight the threat of lung cancer. Sources for this article include: http://onlinelibrary.wiley.com/doi/10.1002/m...