Pistachio nut

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About Pistachio nut
Wikipedia Article About Pistachio nut on Wikipedia

The Pistachio (Pistacia vera, Anacardiaceae; sometimes placed in Pistaciaceae) is a small tree up to 10 m tall, native to southwestern Asia (Iran west to the Levant). It has deciduous pinnate leaves 10-20 cm long.

The plants are dioecious, with separate male and female trees. The flowers are apetalous and unisexual, and borne in panicles. The fruit is a drupe, containing an elongated seed (a nut in the culinary sense, but not a true botanical nut) with a hard, whitish shell and a striking light green kernel, having a very characteristic flavour.

When the fruit ripens, the shells split open partially (see photo). This happens with an audible pop, and legend has it that lovers who stand under a pistachio tree at night and hear the nuts popping open will have good luck.