Andropogon is a genus of grasses commonly known as bluestems. These perennial plants are primarily found in North America and are characterized by their tall, upright growth and distinctive flower heads. They thrive in a variety of habitats, including prairies, savannas, and open woodlands, and play a crucial role in their ecosystems by providing habitat and food for wildlife. The genus includes several species, such as Andropogon gerardii, which is a dominant grass in the tallgrass prairie ecosystem. Andropogon grasses are also valued for their use in erosion control and as forage for livestock, making them important for both ecological and agricultural purposes.