And then there’s Brassica oleracea, where it’s not even a family, but one single species that brings us a heap of classic veggies including cabbage, broccoli, cauliflower, kale, Brussels sprouts, and gai lan. If you expand to its family you can add turnip, bok choy, radish, wasabi, as well as the majority of source vegetables in the eponymous “vegetable oil”.