This unusual root crop is a winter staple in northern China and parts of Japan, and may be poised to become the next exciting winter crop for market farmers and homesteaders. Roots are smooth and shiny like a bald head, and have a mild spicy mustard flavor. A refreshing, cool-season crop that is typically pickled or stir fried, this crunchy and juicy root is considered a good source of vitamins and nutrients during the long winter months.