Chinese broccoli (Brassica oleracea var. alboglabra) is a leaf vegetable. It has thick, flat, glossy blue-green leaves. It also has thick stems, and florets similar to broccoli. It is also called Chinese kale, Gai lan, kai-lan, or jie lan. It is a variety of "Brassica oleracea". It's cultivar group is "alboglabra".