"... Heart-shaped leaves and a peppery punch make watercress a foodie favorite in salads, sandwiches and sautes. And recently, this leafy green won the World Cup of the fruit and vegetable world, running off with top ranking for its nutritional wallop. ..."
Read the entire article: http://www.postandcourier.com/article/20140715/PC12/140719658/1002/meet-the-new-nutrition-powerhouse-leafy-greens