Welcome to an overview of what Economic Botany has to offer. Grass leaves have a sheathing base and extending leaf blades.
Grasses form tough fibrous roots that anchor the plant into the ground.
Mowing the lawn cuts off the blades, but the crown can produce more leaves. Love of lawns involves aesthetics, economics, psychology, and history. From an overall ecological point of view, though, the American lawn does pose challenges. England is a country of mild winters, high humidity, and temperate climate, all good for grass. Transporting the British lifestyle to New World included planting of grass.