Purslane, otherwise known as Pigweed or Verdolaga, is a succulent that often grows as a weed, but is harvested for consumption by adventurous cooks. Its taste is slightly sour and cool, somewhat like a bright cucumber, with a bit of salinity. Its leaves are great added to summer salads. As a succulent, it has a somewhat mucilaginous quality, making it an excellent (and delicious) thickener for soups and stews.
Purslane is also extremely nutritious! It contains a huge amount of omega-3 fatty acids and many essential vitamins and minerals, including vitamin A, vitamin B, vitamin C, vitamin E, carotenoids, calcium, magnesium, potassium, and iron.