There are several species commonly known as "cress", even though they belong to different families: Alen cress, Para cress, ground cress... What these species have in common is that they are quick and easy to grow, and tend to propagate, creating real mats. They are used as condiments, mainly in salads, each with a very specific and pronounced taste. They can also be found in many recipes for cooked dishes, such as Madagascar's national dish, roumazava, whose main ingredient is Para cress. All you have to do is harvest the leaves or flowers as and when you need them.