Brassica oleracea var. sabellica

Kale is a popular vegetable and a member of the cruciferous family like cabbage, broccoli, cauliflower, collard greens and Brussels sprouts.
It is among the most nutrient-dense foods on the Planet. It is rich in antioxidant and an excellent source of vitamin C. There are many different types of kale. The leaves can be green or purple, and have either a smooth or curly shape.