Nevertheless, many cultures have recognized something special in this plant. By selecting plants with denser layers of leaves, ancient people created modern cabbage and kale. Others bred for the inflorescence, a dense bundle of small flowers that forms the head of cauliflower and broccoli. By favoring large, edible buds, thirteenth-century farmers living around modern day Belgium created Brussels sprouts. Under different selection pressures, Brassica oleracea has become German kohlrabi, or Chinese gai lan, or East African collard greens.
To construct a nominally-typed value, the mechanics are somewhat
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