The almond, Prunus dulcis, is a small deciduous tree and the source of the edible almond kernel commonly called a "nut." The species belongs to the rose family and is cultivated for its seed rather than for timber or ornament. As a tree it is often planted in orchards and gardens; cultivated forms differ from wild relatives in the size and palatability of the kernels. See also botanical treatments of the tree and the plant family Rosaceae.

Botanical characteristics

Almonds are botanically the seed of a drupe: the plant produces a fleshy outer hull that encloses a hard shell, and inside that shell sits the edible seed. The trees produce showy white to pale pink flowers in spring. Leaves are lance-shaped and alternately arranged. The edible portion sold as an "almond" is the kernel extracted after the hull and shell are removed — a process known as shelling. For more on classification and related species see taxonomic resources.

Origin and cultivation

Almonds are native to Iran and adjacent areas of Central Asia and the Levant. They have been cultivated since antiquity and spread around the Mediterranean basin, where climates with mild, wet winters and hot, dry summers are favorable. Modern commercial almond production now occurs in several Mediterranean-climate regions worldwide; large-scale orchards are common in places such as California. Historical and regional accounts describe almond cultivation and trade originating from the native range around Iran and expanding into areas with climates similar to the Mediterranean region.

Uses, processing and varieties

Almond kernels are eaten raw or roasted, used in confections such as marzipan and nougat, pressed for oil, and processed into milk and flour substitutes. There are two broad categories of cultivated almonds: sweet almonds, which are eaten as food, and bitter almonds, which contain the compound amygdalin and can release cyanide if eaten raw in quantity. Processing and heat treatment remove or neutralize toxins in products derived from bitter varieties in some traditional applications. The fruit and seed structure are described in agricultural guides to almond fruit.

Practical notes

  • Common commercial forms: shelled (kernels), unshelled (in-shell), blanched (skin removed), roasted, or sliced.
  • Uses: snacking, baking, dairy alternatives (almond milk), cooking oil, and confectionery.
  • Distinction: almonds are seeds of drupes, unlike true botanical nuts such as hazelnuts.

Because almonds combine culinary versatility with storability and a rich nutrient profile, they are an important crop in many agricultural regions and a familiar ingredient in cuisines around the world.