Nasturtium officinale is a species of aquatic plant commonly known as watercress. It is a member of the Brassicaceae family and is consumed in many cuisines around the world due to its peppery taste and high nutrient content. In addition to its culinary use, watercress is also used in traditional medicine to treat various ailments. Synonyms for Nasturtium officinale include Rorippa nasturtium-aquaticum, Nasturtium fontanum, and Cardaminum nasturtium. These names refer to the same plant and are often used interchangeably. Regardless of the name, watercress remains a popular ingredient in salads, sandwiches, and soups.