Wheat, rice, and maize are all grasses that people depend on for a large share of their food.

The longer version

The three great grain crops all belong to the grass family, and much of their usefulness comes from that heritage. Grasses pack their seeds into dense heads, make many of them at once, and thrive in open ground, so a single season can yield a large harvest from a broad field.

Their stems stay slim and fibrous, which makes cutting and threshing straightforward, and the seed itself stores starch that keeps well when dried. People selected wild grasses over many generations, favouring plants whose seeds stayed on the stalk and grew larger, until the cultivated forms became quite different from their wild relatives.

Where this entry sits

Plants and Trees gathers ordinary and surprising details about how green things live, from the tallest forest giants down to the moss on a garden wall. Expect notes on flowers, seeds, roots, leaves, fungi, and the quiet tricks plants use to spread and survive. The full list sits on the Plants and Trees page, where every entry is listed in order.