Why are grasses among the world’s most economically important plants?

Grasses, members of the Poaceae family, are among the world’s most economically important plants primarily because they serve as the single most significant source of food for humanity.1

Their economic importance is driven by several key factors:

• Primary Food Source: More than 50 percent of the world’s caloric intake is derived from grasses, particularly cereals such as wheat, rice, and corn.2
• Agricultural Land Use: Up to 70 percent of the world’s agricultural land is dedicated to crop grasses.2
• Livestock Feed: Grasses are the most important single source of feed for ruminants, including cattle, sheep, and goats, providing a cost-effective way to sustain livestock.23
• Versatility and Industry: Beyond food, grasses like sugarcane are vital for sugar and fuel production, while bamboos provide essential materials for construction, papermaking, and various household goods.2
• Adaptability: Their ability to thrive in diverse environments—from deserts to aquatic habitats—has allowed them to dominate approximately 24 percent of the Earth’s vegetation, making them a foundational element of global ecosystems and economies.12