Almonds come from the almond tree, scientifically known as Prunus dulcis (also called Prunus amygdalus). They are seeds harvested from the fruit of this tree, which is native to the Mediterranean region and southwestern Asia, particularly areas in West Asia such as Iran, the Levant, and parts of Central Asia

. Historically, almonds were first cultivated around 3000 BC in these regions and spread along the Mediterranean shores into northern Africa and southern Europe. The almond tree thrives in Mediterranean climates with cool winters and dry summers

. Today, while almonds are grown in various Mediterranean-like climates worldwide, California produces nearly 80% of the world's almond supply, especially in the San Joaquin Valley, making it the leading almond-growing region globally

. In summary:

• Origin: Native to southwestern Asia and the Mediterranean, especially West Asia (Iran, Levant, Central Asia).
• Cultivation history: Domesticated around 3000 BC, spread through the Mediterranean basin.
• Current major producer: California, USA (about 80% of global production).
• Tree and fruit: Almonds grow on deciduous trees; the edible almond is the seed inside a drupe fruit that resembles a small peach

This explains where almonds come from both historically and geographically.