Wheat refers to several species in the genus Triticum, and is one of the most important cereal crops in human agriculture. Botanically it is a grass (Poaceae) that produces a compact inflorescence commonly called a head or spike; each spike contains the seeds or kernels that are harvested as grain. Wheat was first domesticated in the Near East, especially the Levant, and today it is grown across temperate regions worldwide. The crop is prized for the versatility of its kernels, which can be ground into flour or processed into many foodstuffs.

Plant features and production

Wheat varieties differ in spike architecture, seed hardness and gluten composition. Common bread wheat (a hexaploid species) and durum wheat (used for pasta) are the two main commercial types; older domesticates such as einkorn and emmer are still cultivated in limited areas. Wheat is valued for its relatively high content of plant protein (vegetable protein) compared with other staples such as maize and rice. Because it stores well when dry, wheat has been produced and traded at large scale for centuries and is a cornerstone of international grain markets.

History and cultural impact

The shift from foraging to farming in the Neolithic included the intentional sowing and harvesting of wild wheats and related grasses; this agricultural revolution enabled stable food surpluses that supported towns, specialized crafts and larger polities. Wheat cultivation spread from the Fertile Crescent (Fertile Crescent) into Europe, North Africa and Asia, and was central to ancient economies and state power in regions governed by the Babylonian and Assyrian administrations. Reliable cereal harvests are often cited as a key factor in the rise of early civilization.

Uses and common products

Wheat grain is milled into flour and used to produce a wide range of foods. Staples include leavened and flat breads, noodles, pasta, and regional items like couscous. Baked goods such as biscuits, cookies and cakes, breakfast cereals and processed snacks also rely heavily on wheat. Beyond food, fermentation of wheat can yield ethanol for industrial uses, alcoholic beverages (beer and spirits), and it can contribute to biofuel production. Straw and by-products serve as animal bedding, feed and raw material for crafts and building.

Nutrition, health and distinctions

As a staple food, wheat supplies calories, carbohydrates and a significant share of dietary protein in many regions. Its baking quality largely depends on gluten, a set of storage proteins that give dough its elasticity. For some people gluten provokes immune-mediated reactions: coeliac disease is an autoimmune condition triggered by gluten, and separate wheat allergy or non-celiac gluten sensitivity can cause other symptoms. Food manufacturers and regulators increasingly label products to indicate wheat or gluten content.

Varieties, cultivation and modern relevance

Modern agriculture grows multiple wheat classes adapted to climate, soil and end-use: winter or spring types, hard or soft wheats, and durum. Plant breeding has focused on yield stability, disease resistance and quality traits, while agronomy addresses sowing dates, fertilization and pest control. Wheat remains a major traded commodity, feeding billions and underpinning food security; changes in climate, policy and market demand continue to shape how and where it is grown.

For introductory reading and resources on wheat biology, production and food uses, consult general agricultural guides and food science texts; researchers and producers rely on specialist literature for the latest breeding and policy developments. Further historical and economic context can be found through materials addressing the Fertile Crescent, the role of grain in early civilization, and modern global trade networks.

Additional references: genus treatments and botanical keys (Triticum), cereal crop overviews (cereals), comparative staple analyses (rice, maize) and product standards for flour and bread (baking).