The almond (Prunus amygdalus) is a species of tree in the family Rosaceae, the roses. It prospers in a moderate Mediterranean climate with cool winter weather, and is native to Iran and surrounding countries, although it is rarely now found wild in its original setting. The fruit of the almond is a drupe, consisting of an outer hull and a hard shell with the seed; botanically, it is not considered a true nut. It is used extensively as a culinary nut, however, and is cultivated worldwide. Around 80% of the world's almond supply is produced in the US state of California. This photograph shows an almond drupe in shell, shell cracked open, unshelled and blanched seed.Photograph credit: Ivar Leidus