Lacinato kale, [a] also known as Tuscan kale, Italian kale, dinosaur kale, kale, flat back kale, palm tree kale, black Tuscan palm, [3][4] or, in Italian and often in English, cavolo nero, [b] is a variety of kale from the Acephala group of cultivars Brassica oleracea grown for its edible leaves. More @Wikipedia
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