Curated OER
University of Texas: India: Major Crop Areas
From a 1973 map showing the major crops grown in India. This map from the Perry Castaneda Collection also shows the direction of the wind in the monsoon season and the winter flow.
Smithsonian Institution
Smithsonian Education: From Old World to New World
Plants have migrated around the world just like people. This site explains how several African plants and food crops made their way into American life.
US Department of Agriculture
Choose My Plate: All About the Grains Group
There are two types of grains: whole grains and refined grains. Learn about each and find examples. Click on the "Grains Food Gallery" link to see examples, images, and serving sizes of different grains.