chard

or Swiss chard

Edible-leaf beet (Beta vulgaris, variety cicla), a variety of beet in which the tender leaves and leafstalks have become greatly developed. They are a good source of vitamins A, B, and C. Chard is popular as a home-garden pot herb because it is easy to grow, productive, and tolerant of moderate heat. Highly perishable, it is difficult to ship to distant markets.

Find more information on chard. Upgrade to Britannica Online for more on chard.