Dandelion- The Great Restorer

What is it about dandelions that make them so resilient?  Every spring they appear in hordes and take over our grassy lawns and gardens.  Found in almost all four corners of North America, dandelions are not given the great healing, and culinary quality, that they deserve.  Like nettles, most people see them as pests, but if you look closer you will see a tonic plant like no other!