New Market, Alabama, was once known (in the 1940s) as the "Watercress Capital of the World" in America. Watercress is often used in sandwiches, such as those made for afternoon tea.
Health benefits and cancer defense
Watercress contains significant amounts of iron, calcium and folic acid, in addition to vitamins A and C. In some regions watercress is regarded as a weed, in other regions as an aquatic vegetable or herb. Watercress crops grown in the presence of animal waste can be a haven for parasites such as the liver fluke Fasciola hepatica.