Ajwain or ajowan —also known as ajowan caraway, omam, thymol seeds, bishop's weed, or carom—is an annual herb in the family Apiaceae. Both the leaves and the seed‑like fruit of the plant are consumed by humans. The name "bishop's weed" also is a common name for other plants. Carom seeds (ajwain) contain fiber, antioxidants, and other beneficial nutrients. It may provide some health benefits, including improving cholesterol levels and indigestion. Carom seeds are the seeds of the ajwain herb, or Trachyspermum ammi. They're common in Indian cuisine.