Kale
Kale, or leaf cabbage, belongs to a group of cabbage cultivars grown for their edible leaves, although some are used as ornamentals. Kale plants have green or purple leaves, and the central leaves do not form a head. Kales are considered to be closer to wild cabbage than most of the many domesticated forms of Brassica oleracea.
Researchers develop a "space salad" perfected suited for astronauts on long-durations spaceflights. The salad has seven ingredients (soybeans, poppy seeds, barley, kale, peanuts, sunflower seeds, and sweet potatoes) that can be grown on spacecraft and fulfill all the nutritional needs of astronauts.
