2. Although pistachio tree species and planting techniques were introduced to China in the Tang Dynasty, the range of producing areas was not wide, so the yield of pistachio in China was not large. China has a long history of cultivating pistachios, but most of them are planted sporadically.
3. Although pistachios are planted in China, the output is not large. Pistachio nuts are mainly distributed in the Mediterranean coast, and are planted in Iran, Egypt, Russia, Italy, Turkey, Afghanistan and other countries, and a small amount is also planted in the southwestern United States. Iran is a big producer of pistachios and one of the origins of pistachios.