Ammi is a plant obtained from the fruits of Ammi majus, belonging to the family Umbelliferae.
These are the plants which are native to Egypt and is wildly grown in Europe, Abyssinia and West Africa.
The cultivation is carried out in Jammu and Kashmir of India.
The plant is cultivated in North India by some private pharmaceutical firms and CIMAP (Central Institute of Medicinal and Aromatic Plants).
The active ingredient which is present in these fruits is xanthotoxin. The other constituents are furanocoumarin derivatives like bergapten, isopimpilin and imperatorin.