Form of cabbage ( Brassica oleracea , Gongylodes group) of the mustard family , which originated in Europe.
Its most distinctive feature is the greatly enlarged, globular to slightly flattened stem that grows just above the soil. Its flesh resembles that of a turnip but is sweeter and milder. Low in calories, kohlrabi is an excellent source of vitamin C, minerals, and dietary bulk. The young tender leaves may be eaten as greens; the thickened stem is served raw or cooked. Though not widely grown commercially, it is popular in some regions.
Kohlrabi ( Brassica oleracea )
W.H. Hodge