Watercress is a hardy perennial in the mustard family that is native to Asia,
Europe and naturalized in North America. As its name suggests, the plant is
semi-aquatic and typically found near marshes and other wetlands.
While it is sometimes considered an invasive weed, watercress is cultivated as a vegetable
and herb. As an herb, dried watercress lends a peppery flavor to soups, stews,
eggs, potatoes and rice.
