The pistachio (Pistacia vera L., Anacardiaceae or sometimes Pistaciaceae)'s a small tree native to mountainous regions of Iran, Turkmenistan, Turkey and western Afghanistan, that produces an important culinary nut. Pistacia vera often's confused with other species in the genus Pistacia that're also known as pistachio. These species can be distinguished from P. vera by their geographic distributions (in the wild) and their nuts. Their nuts are much smaller, have a strong flavor of turpentine, a… (More on Pistachio)