Ajwain is Very good for digestion carom seeds are oval in shape. It is an annual herb in the family Apiaceae. Both the leaves and the seed which is also known as the fruit of the plant are consumed. They have a bitter and pungent taste with a flavor similar to anise and oregano he ajwain plant is thought to have originated in Persia (Iran) and Asia Minor (what is now Turkey). From there it spread to India and is now also grown in the Middle East and North Africa. Other names for ajwain are ajowan ajowan caraway ajave seeds ajvain ajwan Ethiopian cumin omam and omum depending on where it's used in the world.