Any plant of the large genus Brassica, in the mustard family, containing about 40 Old World species and including the cabbages, mustards, and rapes. B. oleracea has many edible varieties, such as broccoli, Brussels sprouts, cabbage, cauliflower, kale, and kohlrabi. Also included in this genus are the turnip (B. rapa), the rutabaga (B. napobrassica), and the Chinese cabbages (B. pekinensis and B. chinensis).
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