Wild cabbage was the original gangster of the vegetable world, spawning many of our favorite vegetables!
Early farmers cultivated many popular vegetables from the Brassica oleracea (wild cabbage) by artificially selecting for certain attributes. Common vegetables such as cabbage,kale, broccoli, cauliflower, kohlrabi and Brussels sprouts are all descendants of the wild cabbage plant. Brussels sprouts were created by artificially selecting for large bud size. Broccoli was bred by selecting for large flower stalks. Cabbage was created by selecting for short petioles. Kale was bred by selecting for large leaves.
It was cultivated throughout Roman times, and is a native to western Europe, which is probably why these vegetables figure so prominently in western cuisine.