Mungrailo also called black Seed, black caraway, Roman coriander, kalonji, or Fennel flower, annual plant of the ranunculus family grown for its pungent seeds, which are used as a spice and in herbal medicine.- the black cumin plant is found in southwestern Asia and parts of the Mediterranean and Africa, where It has a long history of use in diverse culinary and medicinal traditions.- the seeds have an aroma similar to Fennel and have a pungent flavour somewhat similar to Nutmeg, though the plant is not related to either.