Economy of Iran spices including cumin and sumac. Iran is the world's largest producer of saffron, pistachios, honey, berberis and berries and the second largest date producer. Meat and dairy products include lamb, goat meat, beef, poultry, milk, eggs, butter, and cheese. Non-food products include wool, leather, and silk. Forestry products from the northern slopes of the Alborz Mountains are economically important. Tree-cutting is strictly controlled by the government, which also runs a reforestation program. Rivers drain into the Caspian Sea and are fished for salmon, carp, trout, pike, and sturgeon that produce caviar, of which Iran is the largest producer. Since the
History of saffron the family Iridaceae, native to Greece and Crete. "C. cartwrightianus" is the presumed wild progenitor of the domesticated triploid "Crocus sativus" – the saffron crocus. Saffron is the triploid form of a species found in Eastern Greece, "Crocus cartwrightianus"; it probably appeared first in Crete. An origin in Western or Central Asia, although often suspected, has been disproved by botanical research. Saffron played a significant role in the Greco-Roman pre-classical period bracketed by the 8th century BC and the 3rd century AD. The first known image of saffron in pre-Greek culture is much older and stems from the Bronze Age.