The citron, however, will not grow in the country which has been here termed Media.

It flourishes only in the warm tract between Shiraz and the Persian Gulf, and in the low sheltered region, south of the Caspian, the modern Ghilan and Mazanderan.

No doubt it was the inclusion of this latter region within the limits of Media by many of the later geographers that gave to this product of the Caspian country an appellation which is really a misnomer.
Another product whereto Media gave name, and probably with more reason, was a kind of clover or lucerne, which was said to have been introduced into Greece by the Persians in the reign of Darius, and which was afterwards cultivated largely in Italy.

Strabo considers this plant to have been the chief food of the Median horses, while Dioscorides assigns it certain medicinal qualities.

Clover is still cultivated, in the Elburz region, but horses are now fed almost entirely on straw and barley.
Media was also famous for its silphium, or assafoetida, a plant which the country still produces, though not in any large quantity.