kohlrabi
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- National Center for Biotechnology Information - PubMed Central - The Impact of Kohlrabi Sprouts on Various Thyroid Parameters in Iodine Deficiency- and Sulfadimethoxine-Induced Hypothyroid Rats
- University of Wisconsin-Madison - Wisconsin Horticulture Division of Extension - Kohlrabi, Brassica olearcea var. gongylodes
- University of Minnesota Extension - Growing kohlrabi in home gardens
- Healthline - Get to Know Kohlrabi, a Versatile Vegetable
- WebMD - Health Benefits of Kohlrabi
- The Spruce - What Is Kohlrabi?
- Texas A&M Agrilife Extension - Kohlrabi and Brussels Sprouts Are European
- University of Kentucky - College of Agriculture, Food and Environment - Kohlrabi
- Plant Village - Kohlrabi
- Utah State University - Yard and Garden Extension - How to Grow Kohlrabi in Your Garden
- North Carolina Extension - Brassica oleracea (Gongylodes Group)
kohlrabi, (Brassica oleracea, variety gongylodes), form of cabbage, of the mustard family (Brassicaceae), grown for its edible enlarged stem. Kohlrabi is best harvested for food when this enlargement is 5–6 cm (2–2.5 inches) in diameter; the flesh is similar to that of the turnip but is sweeter and milder. Kohlrabi is not widely grown commercially but is popular in some regions as a kitchen garden vegetable; in Europe it is also grown for stock feed. The young tender leaves may be eaten as greens, and the thickened stem is usually served as a cooked vegetable.
Kohlrabi is a biennial plant that is usually grown as a cool-season annual. The waxy lobed or wavy leaves emerge from the swollen stem and feature long petioles (leaf stems). The edible stem can be green, white, or purple, depending on the variety. If left to mature, the plant bears yellow four-petaled flowers in small clusters; the elongated fruits are known as siliques.