An erect, glabrous or minutely pubescent, branched annual. The stems are striate; the leaves are rather distant, 2-3-pinnately divided, the segments linear. The flowers occur in terminal or seemingly-lateral pedunculate, compound umbels, white and small; the fruits are ovoid, muricate, aromatic cremocarps, greyish brown; the mericarps, which are the components of the fruit, are compressed, with distinct ridges and tubercular surface, 1-seeded.
 
Indian name for Bishop's Weed:
Hindi : Ajwain Bengali : Jowan or Joan Gujarati : Yavan Kannada : Oma Kashmiri : Jawind Malayalam : Omum Marathi : Onva Oriya : Juani Punjabi : Ajamoda, Avanika Sanskrit : Ajamoda, Avanika Tamil : Omum Telugu : Vamu Urdu : Ajowain
Foreign name for Bishop's Weed:
Latin : Trachy Spermum Ammi Persian : Zinian, Nankhwah Arabic : Kamme Muluki