Kohlrabi, also called German turnip or turnip cabbage, is a biennial vegetable, a low, stout cultivar of wild cabbage. It is a cultivar of the same species as cabbage, broccoli, cauliflower, kale, Brussels sprouts, collard greens, Savoy cabbage, and gai lan.
Brassica oleracea var. gongylodes (kohlrabi)
A basket of White Vienna kohlrabi
Kohlrabi grown in a flower pot, England
Blooming plant in the 2nd year
Brassica oleracea is a plant species from family Brassicaceae that includes many common cultivars used as vegetables, such as cabbage, broccoli, cauliflower, kale, Brussels sprouts, collard greens, Savoy cabbage, kohlrabi, and gai lan.
Brassica oleracea
Head of B. oleracea Botrytis group (cauliflower) growing
Couve Galega (ex. Brassica oleracea var. acephala DC.) for the Portuguese Caldo verde
Jersey cabbage can be cultivated to grow quite large, especially in frost-free climates.